WO2016071308A1 - Optoelektronisches bauelement und verfahren zu seiner herstellung - Google Patents
Optoelektronisches bauelement und verfahren zu seiner herstellung Download PDFInfo
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- WO2016071308A1 WO2016071308A1 PCT/EP2015/075518 EP2015075518W WO2016071308A1 WO 2016071308 A1 WO2016071308 A1 WO 2016071308A1 EP 2015075518 W EP2015075518 W EP 2015075518W WO 2016071308 A1 WO2016071308 A1 WO 2016071308A1
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- Prior art keywords
- metallization
- semiconductor chip
- optoelectronic
- composite body
- optoelectronic semiconductor
- Prior art date
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- 230000005693 optoelectronics Effects 0.000 title claims abstract description 233
- 238000000034 method Methods 0.000 title claims description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000001465 metallisation Methods 0.000 claims abstract description 135
- 239000004065 semiconductor Substances 0.000 claims abstract description 119
- 239000002131 composite material Substances 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims description 29
- 230000001681 protective effect Effects 0.000 claims description 17
- 239000012777 electrically insulating material Substances 0.000 claims description 16
- 239000002775 capsule Substances 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 2
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- 238000000465 moulding Methods 0.000 description 15
- 230000005670 electromagnetic radiation Effects 0.000 description 12
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
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- 239000012778 molding material Substances 0.000 description 5
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- 239000004020 conductor Substances 0.000 description 4
- 238000004382 potting Methods 0.000 description 4
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/54—Encapsulations having a particular shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/005—Processes relating to semiconductor body packages relating to encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0058—Processes relating to semiconductor body packages relating to optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
Definitions
- the present invention relates to an optoelectronic component according to patent claim 1 and to a method for producing an optoelectronic component according to patent claim 12.
- Optoelectronic components for example light-emitting diode components
- Optoelectronic components are known with different housing variants from the prior art.
- opto-electronic devices are known in which an opto-electronic ⁇ semiconductor chip isLebet- tet into a shaped body, which forms the bearing housing part.
- Such opto ⁇ electronic components have extremely compact external dimensions.
- An object of the present invention is to provide an optoelectronic device. In this ⁇ handover is achieved by an optoelectronic device with the features of claim 1.
- a further object of the present invention is to specify a method for producing an optoelectronic component. This object is achieved by a method having the features of claim 12. In the dependent claims various developments are given.
- An optoelectronic component has a composite body which comprises a shaped body and an optoelectronic semiconductor chip embedded in the shaped body.
- An electrically conductive through-contact extends from one ⁇
- An upper side of the opto ⁇ electronic semiconductor chip is at least partially not covered by the molding.
- the optoelectronic semiconductor chip has a first electrical contact on its upper side.
- a first top side metallization is arranged, which electrically conductively connects the first electrical contact to the via.
- a second top metallization is also disposed on the upper surface of the composite body, which is electrically insulated from the first top Metal ⁇ capitalization.
- the second top metallization at the top of the composite body of this optoelectronic device may advantageously act as a metallic mirror that increases a reflectivity of the top surface of the composite body of the optoelectronic device. Characterized absorption losses by absorption of radiation emitted by the optoelekt ⁇ tronic semiconductor chip of the optoelectronic component of electromagnetic radiation are reduced at the top surface of the composite body. From this vorteilhaf ⁇ ingly an improved efficiency of the optoelectronic component can result.
- the second top metallization on the upper surface of the composite body of the optoelectronic component can serve au ⁇ ßerdem to prevent excessive aging of the material of the shaped body. This can advantageously increase the service life of the optoelectronic component.
- the second top side metallization extends over a part of the top side of the optoelectronic semiconductor chip.
- this also results in a reflectivity of the part of the top side of the optoelectronic semiconductor element covered by the second top side metallization.
- chips increased.
- the second Oberceme ⁇ tallmaschine serve to increase the reflectivity of an edge of the upper side of the optoelectronic semiconductor chip.
- the second top side metallization completely circumscribes the first top side metallization.
- the second top-side metallization can thereby cover a large part of the upper side of the composite body of the optoelectronic component, resulting in a high reflectivity of the upper side of the composite body.
- the second top-side metallization completely delimits a part of the top side of the optoelectronic semiconductor chip.
- the second top Metal ⁇ capitalization thereby forming a closed cavity around the circumscribed by the second top metallization of the upper surface of the optoelectronic semiconductor chip, making it possible to arrange a molding material over the top of the optoelectronic semiconductor chip that is contained by the formed by the second top metallization cavity ,
- the cavity formed by the second Obercodeme ⁇ tallization is then filled with the Vergussma ⁇ material, so that the potting reaches to the second Obercodemetallmaschine.
- a wavelength-material is arranged in a fully bounded by the second Oberfitmetallisie ⁇ tion area on the upper surface of the composite body.
- the wavelength-converting material can be contained by the second top side metallization.
- the cavity formed by the second upper side metallization is thus filled with the wavelength-converting material, so that the wavelength-converting material reaches as far as the second upper-side metallization.
- the wavelength-converting material may serve to emit electromagnetic radiation emitted by the optoelectronic semiconductor chip of the optoelectronic component at least partially convert to electromagnetic radiation of a different wavelength.
- light can be generated from electromagnetic radiation having a wavelength from the blue or ultraviolet spectral range, which has a white color impression.
- an electrically insulating material is arranged between the upper side of the optoelectronic semiconductor chip and the first upper side metallization over an edge region of the upper side of the optoelectronic semiconductor chip.
- this electrically insulating material it can be ensured by this electrically insulating material that the first top-side metallization on the upper side of the composite body
- the optoelectronic component is on the underside of the composite body a first sub ⁇ ,metallmaschine and electrically conductively connected to the via.
- the first Unter metalli ⁇ tion is characterized by the via and the first top metallization in electrically conductive connection to the first electrical contact of the optoelectronic semiconductor chip of the optoelectronic device.
- the first underside metallization may, for example, the serve electrical contacting of the optoelectronic device.
- the optoelectronic component is an underside of the optoelectronic semiconductor chip on the underside of the composite body at least in part as free ⁇ .
- the optoelectronic semiconductor ⁇ chip on its underside on a second electrical contact.
- the second top side metallization is electrically conductively connected to the second electrical contact of the optoelectronic semiconductor chip.
- Upper surface of the composite body of the optoelectronic Bauele ⁇ ment and the second electrical contact of the opto-electro ⁇ African semiconductor chip can be formed for example by arranged in an edge region of the top of the optoelectronic semiconductor chip Schlackegrat.
- the second top side metallization of the optoelectronic component is advantageously electrically insulated from the first top side metallization of the optoelectronic component, there is no short circuit between the first electrical contact and the second electrical contact of the optoelectronic semiconductor chip of the optoelectronic component in this case.
- the optoelectronic component is on the underside of the composite body a second sub ⁇ retemetallmaschine and electrically conductively connected to the second electrical contact.
- the second underside metallization may be for electrical contacting .
- the optoelectrochemical ⁇ African component can be provided for example as an SMD for surface mounting, for example, for surface mounting by reflow soldering (reflow soldering).
- a protective diode is embedded in the molded body.
- the first top metallization is electrically connected to the protective diode.
- the protective diode embedded in the molded body can serve to protect the optoelectronic semiconductor chip of the optoelectronic component from damage due to electrostatic discharges.
- the protection diode By integrating the protection diode in the form body of the optoelectronic component, it is not necessary beneficial ⁇ way legally to connect the optoelectronic construction ⁇ element with another, external protection diode.
- the second underside metallization is electrically conductively connected to the protective diode.
- the protective diode is thereby connected electrically parallel or antiparallel to the optoelectronic semiconductor chip of the optoelectronic component.
- a method of manufacturing an optoelectronic device comprises the steps of providing an opto ⁇ semiconductor electronic chip having on an upper surface a first electrical contact, and for embedding the optoelectronic semiconductor chip in a molding to form a composite body.
- the upper side of the optoelectronic semiconductor chip is at least partially not covered by the molded body.
- the method includes further steps of applying an electrically conductive via extending from an upper surface of the composite body to a lower surface of the composite body through the molded body for applying a first electrical potential Contact electrically conductively connected to the contact ⁇ the first top metallization at the top of the composite body and for applying an electrically insulated against the first top side metallization second top th metallization at the top of the composite body.
- an opto ⁇ electronic device with extremely compact outer Ab ⁇ measurements is available by this method.
- the preparedbil ⁇ finished at the top of the composite body of the optoelectronic component second top metallization can be used for mirroring the upper surface of the composite body, whereby the obtainable by the process optoelectronic component can thus have a high efficiency and low absorption losses.
- the second top metallization applied to the top of the composite may also prevent excessive aging of the molded body material of the optoelectronic device obtainable by the process, which may increase the lifetime of the optoelectronic device.
- the method comprises a further step of arranging a wavelength-converting material in a region completely surrounded by the second top-side metallization at the upper side of the composite body.
- This waves ⁇ nostinkonvertierende material may occur when obtainable by the Ver ⁇ drive optoelectronic component to DIE nen to convert a light emitted by the optoelectronic semiconductor chip electromagnetic radiation at least partly into electromagnetic radiation of a different wavelength.
- another is prior to the application of the first top side metallization
- Step is performed for arranging an electrically isolie ⁇ leaders material over the edge region of the top of the optoelectronic semiconductor chips. It is thereby advantageous ⁇ adhesive enough, prevents an electrically conductive connection between the first top metallization and a second electrical contact of the optoelectronic semiconductor chip is formed, for example by a arranged in the edge region of the top of the optoelectronic semiconductor chip Schlackegrat electrically lei ⁇ tend to the second electrical contact the optoelectro ⁇ African semiconductor chip is connected.
- the first top side metallization and / or the second top side metallization is applied by a galvanic process.
- this method makes it possible to form the first top metallization and / or the second top metallization with a large thickness.
- the second top metallization for example, define a cavity, which can serve to receive a Vergussmate ⁇ rials, such as for receiving a WEL lendorfnkonvert Schlierenden potting material.
- the cavity formed by the second top side metallization can be filled with potting material so that the potting material reaches as far as the second top side metallization.
- the step of arranging a capsule top metallization layer on the first and on the second top metallization comprises.
- the capsule layer may serve to increase the reflectivity of the first top metallization and the second top side metallization.
- the Anord ⁇ nen the capsule layer is carried out by electroless deposition. ⁇ advantage adhesive enough, this allows a simple and gentle to the product obtainable by the process optoelectronic component arrangement of the capsule top metallization layer on the first and on the second top metallization.
- the through contact is embedded in the molded body together with the optoelectronic semiconductor chip.
- the via for example, be pin-shaped and an electrically conductive mate rial ⁇ comprise, for example, a metal or a doped semiconductor material.
- the first top metallization and the second Oberivametalli ⁇ tion are applied in common steps.
- the method is thereby particularly simple, fast and inexpensive to carry out.
- FIG. 1 is a plan view of a first optoelectronic ⁇ construction element in an unfinished processing status.
- FIG. 2 is a plan view of the first optoelectronic component in a finished state
- FIG. 3 shows a first sectional side view of the first optoelectronic component
- FIG. 5 shows a plan view of a second optoelectronic component
- 6 shows a plan view of a third optoelectronic component
- FIG. 7 shows a sectional side view of the third opto ⁇ electronic component.
- the first opto-electronic device 10 is designed to emit at ⁇ game as visible light, electromagnetic radiation.
- the first optoelectronic component 10 may be, for example, a light-emitting diode component (LED component).
- the first opto-electronic device 10 has a Ver ⁇ collar body 100 that is formed by a shaped body 200 and an embedded in the mold body 200 optoelectronic semiconductor chip 300, embedded in the mold body 200 through conductor 400 and an embedded in the mold body 200 protection diode 500th
- the molded body 200 may be referred to as Mold stresses and can for example by means of a molding process (Moldvons) made of a molding material (molding material) ge forms ⁇ be.
- the molding material is electrically insulating and may for example comprise an epoxy resin and / or a silicone.
- the molding method used to produce the molded body 200 may be, for example, compression molding or transfer molding, in particular, for example, film-assisted transfer molding.
- the optoelectronic semiconductor chip 300, the via 400 and the protection diode 500 are preferably already embedded currency ⁇ rend the production of the molding 200 in the mold body 200, to form the composite body 100th there
- the optoelectronic semiconductor chip 300, the via 400, and the protection diode 500 are formed with the molding material of the molding 200.
- An upper surface 301 of the optoelectronic semiconductor chip 300, a top surface 401 of the via 400 and a top surface 501 of the protection diode 500 are each at least partially covers 200 be ⁇ through the material of the molding and are thereby at least partially on an upper surface 201 of the molded body 200 free ,
- the upper side 301 of the optoelectronic semiconductor chip 300, the upper side 401 of the through contact 400, and the upper side 501 of the protective diode 500 are flush with the upper side 201 of the molded body 200.
- FIGS. 3 and 4 show that a lower side 302 of the optoelectronic semiconductor chip 300 lying opposite the upper side 301 of the optoelectronic semiconductor chip 300, a lower side 402 of the through contact 400 opposite the upper side 401 of the through contact 400 and one of the upper side 501 of FIG
- Protective diode 500 are at least partially not covered by the mate ⁇ rial of the molding 200 and thereby at least partially on a top 201 of the molding 200 opposite bottom 202 of the molding 200 are free ⁇ lie.
- the underside 302 of the opto ⁇ electronic semiconductor chip 300, the bottom 402 of the through-contact 400 and the bottom 502 of the protective diode 500 are flush with the bottom 202 of the molding 200 from. Together form the bottom 202 of the molding 200, the bottom 302 of the optoelectronic semiconductor chip 300, the bottom 402 of the via 400 and the Un ⁇ underside 502 of protection diode 500, a bottom 102 of the composite body 100.
- the optoelectronic semiconductor chip 300 may ⁇ example, a light emitting diode chip (LED chip) to be.
- the optoelectronic semiconductor chip 300 has on its upper side 301 a mesa 330, which forms a radiation emission surface of the optoelectronic semiconductor chip 300.
- the optoelectronic semiconductor chip 300 is adapted in the region of the mesa 330 at its top 301 electromagnetic ⁇ diagram radiation, for example visible light, to emit ⁇ animals. 300 at its top 301, the opto-electronic semi-conductor chip on ⁇ a first electrical contact 310th In Fig.
- the opto-electronic semi-conductor chip ⁇ 300 also has on its underside 302 a second electrical contact 320th Electrical voltage and current can be applied to the optoelectronic semiconductor chip 300 via its electrical contacts 310, 320 in order to cause the optoelectronic semiconductor chip 300 to emit electromagnetic radiation.
- the via 400 has an electrically conductive Mate ⁇ rial. As a result, the contact hole 400 forms a
- the via 400 may for example comprise a metal or a doping ⁇ tes semiconductor material.
- Ge ⁇ jointly embed rather than the via 400 already during formation of the molded body 200 with the optoelectronic semiconductor chip 300 and the protection diode 500 in the mold body 200, it is also possible, after the formation of the shaped body 200 a extends from the top 201 to the bottom 202 to put through the mold body 200 extending opening and to fill them with an electrically conductive material to form the via 400.
- the protective diode 500 is provided to protect the optoelectronic semiconductor chip 300 from damage by electro ⁇ static discharges.
- the Schutzdi ⁇ ode 500 is connected to the optoelectronic semiconductor chip 300 in the first optoelectronic component 10 to hereinafter explained with reference to Figures 2 to 4 way electrically anti parallel. It is possible to dispense with the protection diode 500.
- the optoelectronic semiconductor chip 300 may have in an edge region 340 between its upper side 301 and between the upper side 301 and the lower side 302 ⁇ the side edges production due to slag 350, for example, up to 20 ym in the top 301 vertical direction over the top 301 of the optoelectronic semiconductor chip 300 can raise.
- This slag crumb 350 may be electrically conductively connected to the second electrical contact 320 on the underside 302 of the optoelectronic semiconductor chip 300 via a substrate of the opto ⁇ electronic semiconductor chip 300.
- 2 shows a schematic plan view of the first opto ⁇ electronic component 10 in one of the representation of FIG. 1 temporally subsequent processing status. In the processing state shown in Fig. 2, the first optoelektroni ⁇ cal device 10 is completed.
- FIG. 3 shows a schematic sectional side view of the first optoelectronic component 10, in which the first optoelectronic component 10 is cut at a sectional plane I-I drawn in FIG. 2.
- Section plane II extends through the optoelectronic ⁇ rule semiconductor chip 300 and the protection diode 500th 4 shows a schematic sectional side view of the first optoelectronic component 10, in which the first optoelectronic component 10 is cut at a sectional plane II-II shown in FIG. 2.
- the section plane II-II extends through the optoelectronic semiconductor chip 300 and the via 400 of the ERS ⁇ th optoelectronic component 10. In this case, the sectional plane II-II passing through the first electrical contact 310 of the optoelectronic semiconductor chip 300th
- an electrically insulating material 150 has been arranged on a section of the upper side 101 of the composite body 100.
- Disposing the electrically insulating Mate rials 150 may be, for example, by mask lithography he ⁇ follows, or for example by a lithographic process in which a foroundes material is exposed directly by a laser.
- the arrangement of the electrically insulating material 150 can also take place by a different application method, which does not require lithographic patterning, for example by a printing method, such as screen printing, stencil printing or pad printing, or by a serial method such as jetting, such as inkjet or aerosol -Jets, or dispensers.
- the electrically insulating material 150 extends beyond ei ⁇ NEN portion of the top 301 of the optoelectronic semiconductor chip 300 in the edge region 340 of the top 301 of the optoelectronic semiconductor chip 300 and a to this portion of the top 301 of the optoelectronic see semiconductor chips 300 adjacent portion of the upper ⁇ page 201 of the molding 200.
- the electrically insulating material 150 is in this case between the first electrical contact 310 on the upper side 301 of the optoelectronic Semiconductor chips 300 and the top 401 of the via 400 arranged.
- a first top metallization 110 and a second Obersei ⁇ tenmetallmaschine were applied to the top surface 101 of the composite body 100 the 120th
- the first top metallization 110 and the second top metallization 120 may be applied concurrently in common operations or in any order sequentially.
- the first top metallization 110 extends from the first electrical contact 310 on the top side 301 of the optoelectronic semiconductor chip 300 via the first
- the first top Capitalization Metal ⁇ 110 an electrically conductive connection between the first electrical contact 310 of the optoelectronic semiconductor chip 300 and the via 400 ago.
- the electrically insulating material 150 By the electrically insulating material 150, the first Obersei ⁇ tenmetallmaschine 110 is electrically isolated against possibly arranged in the edge region 340 of the upper side 301 of the optoelectronic semiconductor chip 300 slag bar 350, thereby ensuring that no electrically conductive connection between the first top metallization 110 and the second electrical contact 320 of the optoelectronic semiconductor chip 300 is made.
- the first Oberchieme ⁇ tallmaschine 110 also extends to the top 501 of the protection diode 500, whereby an electrically conductive connection between the first electrical contact 310 of the optoelectronic semiconductor chip 300 and the top 501 of the protective diode 500 is formed.
- the second top metallization 120 is spaced from the first top metallization 110 and thereby electrically insulated from the first top metallization 110.
- the second top metallization 120 preferably does not extend through most of the In this case, the second top-side metallization 120 can also extend over part of the top side 301 of the optoelectronic semiconductor chip 300 and can be electrically conductively connected to the slag gate 350 arranged in the edge region 340 of the top side 301 of the optoelectronic semiconductor chip 300 second electrical contact 320 of the optoelectronic semiconductor chip 300 may be connected.
- the radiation emission surface formed by the mesa 330 on the top side 301 of the optoelectronic semiconductor chip 300 is covered neither by the first top side metallization 110 nor by the second top side metallization 120.
- the parts of the upper side 101 of the composite body 100 covered by the first upper-side metallization 110 and the second upper-side metallization 120 have a higher reflectivity than uncovered parts of the upper side 101 of the composite body 100.
- electromagnetic radiation emitted by the optoelectronic semiconductor chip of the first optoelectronic component 10 can be emitted , which is scattered back to the top 101 of the composite body 100 of the first optoelectronic ⁇ ronic device 10, to the upper-side metallizations 110, 120 at the top 101 of the
- Composite body 100 are reflected, instead of being absorbed on the upper ⁇ side 101 of the composite body 100.
- the first optoelectronic component 10 can have a high efficiency.
- the first top metallization 110 and the second top metallization 120 may be applied, for example, by a mask lithography process. Alternatively, the first top metallization 110 and the second top metallization 120 may be applied by a lithographic process in which a photoresist is directly exposed by means of a laser. The first tenmetallmaschine 110 and the second Oberfitmetallisie ⁇ tion 120 can also be created by an electroplating method or enhanced. The first top metallization 110 and the second top metallization 120 may be encapsulated at their surfaces by a metallic capsule layer 160. This is particularly useful when the first top Capitalization Metal ⁇ 110 and the second top metallization are applied through a copper electroplating process 120th In this case, the capsule layer 160 may comprise a highly reflective metal.
- the capsule layer 160 is deposited by an electroless process. It can be seen in FIGS. 3 and 4 that a first underside metallization 130 and a second underside metallization 140 are arranged on the underside 102 of the composite body 100 of the first optoelectronic component 10.
- the first bottom metallization 130 and the second bottom metallization 140 may have been applied to the underside 102 of the composite body 100 in common or successive processing steps.
- the bottom side metallizations 130, 140 may have been applied before or after the electrically insulating material 150 and the top side metallizations 110, 120.
- the application of the underside metallizations 130, 140 can be effected, for example, by a lithographic process, for example by a mask lithographic process.
- the first bottom metallization 130 extends over the underside 402 of the via 400 and is electrically conductively connected to the via 400. This provides over the via 400 and the first Oberencemetalli ⁇ tion 110 an electrically conductive connection between the first bottom metallization 130 and the first electrical contact 310 of the optoelectronic semiconductor chip 300 of the first optoelectronic component 10th
- the second bottom metallization 140 is spaced from the first bottom metallization 130 and thereby electrically insulated from the first bottom metallization 130.
- the second bottom metallization 140 extends over the bottom surface 302 of the optoelectronic semiconductor chip 300 and is electrically conductively 300 connected to the underside 302 of the opto-electro ⁇ African semiconductor chip 300 with the second electrical contact 320 of the optoelectronic semiconductor chip.
- the second Unterroughmetallisie ⁇ tion 140 extends beyond the lower side 502 of the protective diode 500 and is electrically conductively connected to the underside 502 of the Schutzdi ⁇ ode 500 is connected.
- the underside 502 of the protection diode 500 is also electrically conductively connected to the second electrical contact 320 of the optoelectronic semiconductor chip 300. Since the upper side 501 of the protective diode 500 is electrically conductively connected to the first electrical contact 310 of the optoelectronic semiconductor chip 300 via the first upper-side metallization 110, the
- the first underside metallization 130 and the second underside metallization 140 on the underside 102 of the composite body 100 of the first optoelectronic component 10 may form solder contact areas of the first optoelectronic component 10 and serve for electrical contacting of the first optoelectronic component 10.
- the first optoelectronic component 10 can ⁇ example, as an SMT component for surface mounting prop ⁇ nen, for example, for surface mounting by How To ⁇ deraufschmelzlöten (reflow soldering).
- the first optoelectronic component 10 can be made common to a plurality of identical first optoelectronic devices 10 in a panel composite in common Ar ⁇ beitsêtn.
- the arrangement of the electrically insulating material 150 and the top side metallizations 110, 120 and bottom side metallizations 130, 140 for each set of an optoelectronic semiconductor chip 300, a via 400 and a protection diode 500 is performed in parallel in common processing steps . Only at the end of the processing is the panel assembly split to separate the individual composite bodies 100 of the individual first optoelectronic components 10.
- FIG. 5 shows a schematic plan view of a second optoelectronic component 20.
- the second optoelectronic component 20 has great correspondences with the first optoelectronic component 10 of FIGS. 2 to 4.
- Components of the second optoelectronic component 20 which correspond to components present in the first optoelectronic component 10 are provided with the same reference symbols in FIG. 5 as in FIGS. 2 to 4 and will not be described again in detail below.
- the second optoelectronic component 20 can be produced by the method explained with reference to FIGS. 1 to 4 for producing the first optoelectronic component 10.
- the second optoelectronic component 20 differs from the first optoelectronic component 10 in that, in the case of the second optoelectronic component 20, the proportion of the surface of the top side 101 of the composite body 100 covered by the first top side metallization 110 is in favor of the area of the top side 101 covered by the second top side metallization 120 of the composite body 100 is reduced.
- the second top metallization 120 covered with the second opto-electronic device 20 thus a larger area than in the first optoelectronic device ⁇ rule 10. This may for example useful be when the second top metallization 120 has a higher reflectivity than the first top Capitalization Metal ⁇ 110. In this case, the second electro-opto component 20 African ⁇ a higher reflectivity than the first optoelectronic component 10th
- the reduction of the area occupied by the first Oberencemetallisie ⁇ tion 110 portion of the upper surface 101 of the composite body 100 may, for example, be achieved or supported at the second opto-electronic component 20 such that the protection diode 500 and the through conductor are arranged to each other closer to 400 than in the first opto-electro ⁇
- the upper side 401 of the through contact 400 and the upper side 501 of the protective diode 500 are arranged closer to one another, which makes it possible to form the first upper side metallization 110 with a smaller area.
- Fig. 6 shows a schematic plan view of a third optoelectronic component 30.
- the third optoelectronic ⁇ specific component 30 has large similarities with the first opto-electronic device 10 of Figures 2 to 4 on.
- Components of the third optoelectronic component 30 which correspond to components present in the first optoelectronic component 10 are provided with the same reference symbols in FIG. 6 as in FIGS. 2 to 4 and will not be described again in detail below.
- the third opto-electronic device 30 of FIG. 6 can be prepared using the method explained with reference to Figures 1 to 4, provided that the following be registered ⁇ variations and features are taken into account.
- the third optoelectronic component 30 differs from the first optoelectronic component 10 in that, in the third optoelectronic component 30, the size of the first top side metallization 110 in favor of the size of the second top side metallization 120 is reduced. This can be enabled or supported, for example, by the measures explained with reference to the second optoelectronic component 20 of FIG. 5.
- the second top-side metallization 120 on the top side 101 of the composite body 100 of the third optoelectronic component 30 completely delimits the first top-side metallization 110 on the top side 101 of the composite body 100 of the third optoelectronic component 30.
- Characterized environmentally second top metallization 120 of the third opto-electronic component 30 is adjacent the top 301 of the optoelectronic semiconductor chip 300 completely, in particular the radiation emission surface in the region of the mesa 330 at the top 301 of the optoelectronic semiconductor chip 300.
- FIG. 7 shows a schematic sectional side view of the third optoelectronic component 30.
- the third optoelectronic component 30 is cut at a sectional plane III - III shown in FIG. 6, which extends through the optoelectronic semiconductor chip 300 and through the protective diode 500 of the third optoelectronic component 30 extends.
- the second Oberencemetalli ⁇ tion in the top side 101 of the composite body 100 perpendicular direction comprises at the top 101 of the composite body 100 of the third opto-electronic component 30 has a greater thickness 120 than the second top metallization 120 of the first optoelectronic component 10.
- the raised Thickness of the second top side metallization 120 of the third optoelectronic device 30 may be generated, for example, by a galvanic process.
- the second top metallization Example 120 in the top 101 of the composite body 100 perpendicular direction of a higher thickness than the first Oberactivitymetallisie ⁇ tion 110 is not mandatory. It is also possible the first top metallization
- a wavelength-material 600 is arranged in the second through the top metallization 120 at the top 101 of the composite body 100 of the third optoelekt ⁇ tronic device 30 bounded region 170 at the top 101 of the composite body 100, that is in the plane formed by the second top metallization 120 cavity.
- the wavelength-converting material 600 is thereby arranged above the emission surface in the region of the mesa 330 on the upper side 301 of the optoelectronic semiconductor chip 300.
- the wavelength-converting material 600 reaches up to the second top-side metallization 120.
- the wavelength converting material 600 may ⁇ example, a matrix material and have in the matrix material is ⁇ embedded wavelength converting particles.
- the matrix material may comprise, for example, silicone.
- the wavelength-converting material 600 may, for example, by means of a metering process in the region 170 bounded by the second top-side metallization 120 on the upper side 101 of the composite body 100 of the third optoelectronic component 30, ie in the second
- the wavelength converting material 600 is to pre ⁇ see light emitted by the optoelectronic semiconductor chip 300 of the third optoelectronic component 30 elekt ⁇ romagnetician radiation at least partly in electro- magnetic radiation of a different wavelength to konvertie ⁇ ren.
- the wavelength-Ma ⁇ TERIAL provided 600 to to convert be electromagnetic Strah ⁇ lung with a wavelength in the blue or ultraviolet spectral range ⁇ into electromagnetic radiation with a wavelength in the yellow spectral range.
- Radiation may, for example, have a white color impression.
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- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/524,114 US9876155B2 (en) | 2014-11-04 | 2015-11-03 | Optoelectronic component and method for the production thereof |
DE112015004995.9T DE112015004995A5 (de) | 2014-11-04 | 2015-11-03 | Optoelektronisches Bauelement und Verfahren zu seiner Herstellung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102014116080.0A DE102014116080A1 (de) | 2014-11-04 | 2014-11-04 | Optoelektronisches Bauelement und Verfahren zu seiner Herstellung |
DE102014116080.0 | 2014-11-04 |
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WO2016071308A1 true WO2016071308A1 (de) | 2016-05-12 |
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PCT/EP2015/075518 WO2016071308A1 (de) | 2014-11-04 | 2015-11-03 | Optoelektronisches bauelement und verfahren zu seiner herstellung |
Country Status (3)
Country | Link |
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US (1) | US9876155B2 (de) |
DE (2) | DE102014116080A1 (de) |
WO (1) | WO2016071308A1 (de) |
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DE102014116079A1 (de) * | 2014-11-04 | 2016-05-04 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement und Verfahren zu seiner Herstellung |
DE102016118990A1 (de) | 2016-10-06 | 2018-04-12 | Osram Opto Semiconductors Gmbh | Sensor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008011809A1 (de) * | 2007-12-20 | 2009-06-25 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement |
US20110316017A1 (en) * | 2010-06-29 | 2011-12-29 | Semileds Optoelectronics Co., Ltd., a Taiwanese Corporation | Wafer-type light emitting device having precisely coated wavelength-converting layer |
DE102010024864A1 (de) * | 2010-06-24 | 2011-12-29 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil |
DE102010027253A1 (de) * | 2010-07-15 | 2012-01-19 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008049399B4 (de) * | 2008-09-29 | 2021-09-02 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronisches Bauelement, optoelektronische Vorrichtung und Verfahren zur Herstellung eines optoelektronischen Bauelements |
DE102011056220A1 (de) * | 2011-12-09 | 2013-06-13 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauteils |
DE102013202904A1 (de) * | 2013-02-22 | 2014-08-28 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil und Verfahren zu seiner Herstellung |
DE102013212247B4 (de) * | 2013-06-26 | 2021-10-21 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronisches Bauelement und Verfahren zu seiner Herstellung |
-
2014
- 2014-11-04 DE DE102014116080.0A patent/DE102014116080A1/de not_active Withdrawn
-
2015
- 2015-11-03 DE DE112015004995.9T patent/DE112015004995A5/de active Pending
- 2015-11-03 US US15/524,114 patent/US9876155B2/en active Active
- 2015-11-03 WO PCT/EP2015/075518 patent/WO2016071308A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008011809A1 (de) * | 2007-12-20 | 2009-06-25 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement |
DE102010024864A1 (de) * | 2010-06-24 | 2011-12-29 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil |
US20110316017A1 (en) * | 2010-06-29 | 2011-12-29 | Semileds Optoelectronics Co., Ltd., a Taiwanese Corporation | Wafer-type light emitting device having precisely coated wavelength-converting layer |
DE102010027253A1 (de) * | 2010-07-15 | 2012-01-19 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil |
Also Published As
Publication number | Publication date |
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US9876155B2 (en) | 2018-01-23 |
DE112015004995A5 (de) | 2017-07-27 |
DE102014116080A1 (de) | 2016-05-04 |
US20170331018A1 (en) | 2017-11-16 |
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