JP6392061B2 - 電子デバイス、その製造方法、及びその製造装置 - Google Patents
電子デバイス、その製造方法、及びその製造装置 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 35
- 229910052731 fluorine Inorganic materials 0.000 claims description 124
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 112
- 239000011737 fluorine Substances 0.000 claims description 112
- 125000001153 fluoro group Chemical group F* 0.000 claims description 103
- 239000007789 gas Substances 0.000 claims description 95
- 238000002161 passivation Methods 0.000 claims description 67
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 64
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 64
- 229910044991 metal oxide Inorganic materials 0.000 claims description 51
- 150000004706 metal oxides Chemical class 0.000 claims description 50
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 40
- 239000004065 semiconductor Substances 0.000 claims description 29
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 24
- 238000005229 chemical vapour deposition Methods 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 20
- 229910052710 silicon Inorganic materials 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- 238000009616 inductively coupled plasma Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 13
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 13
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 5
- 239000001272 nitrous oxide Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910001882 dioxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 23
- 230000008859 change Effects 0.000 description 20
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- 239000000758 substrate Substances 0.000 description 14
- 230000006870 function Effects 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 229910052786 argon Inorganic materials 0.000 description 7
- -1 hydrogen ions Chemical class 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000000538 analytical sample Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/36—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the concentration or distribution of impurities in the bulk material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66969—Multistep manufacturing processes of devices having semiconductor bodies not comprising group 14 or group 13/15 materials
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Formation Of Insulating Films (AREA)
Description
13,57,63,64 ゲート絶縁膜
14 チャネル
15 酸化物半導体層
21,43,46 TFT
22,44,45,47,51,52 エッチストップ膜
23,41,42,59 パシベーション膜
24 プラズマCVD成膜装置
Claims (14)
- 酸化物半導体をなす金属酸化物膜と、該金属酸化物膜に隣接する第1の膜と、該第1の膜を挟んで前記金属酸化物膜に対向する第2の膜とを備える電子デバイスにおいて、
前記第2の膜が弗素含有膜からなり、
前記第1の膜及び前記金属酸化物膜の境界における弗素原子の濃度は、前記金属酸化物膜の前記境界以外の部分における弗素原子の濃度よりも高く且つ前記第2の膜における弗素原子の濃度よりも低く、少なくとも前記第1の膜の前記境界以外の部分における弗素原子の濃度分布は、前記境界に向けて低下する濃度勾配を有することを特徴とする電子デバイス。 - 前記弗素含有膜の前記弗素原子の濃度は、前記金属酸化物膜の前記境界以外の部分における前記弗素原子の濃度よりも高いことを特徴とする請求項1記載の電子デバイス。
- 前記弗素含有膜は、弗素含有窒化珪素(SiN:F)膜、弗素含有酸化珪素(SiO:F)膜及び弗素含有酸窒化珪素(SiON:F)膜のいずれかであることを特徴とする請求項1又は2記載の電子デバイス。
- 前記第1の膜はエッチストップ膜であり、前記第2の膜はパシベーション膜であることを特徴とする請求項1乃至3のいずれか1項に記載の電子デバイス。
- 前記金属酸化物膜は、少なくとも酸化亜鉛又はIGOを構成元素として含有することを特徴とする請求項1乃至4のいずれか1項に記載の電子デバイス。
- 酸化物半導体をなす金属酸化物膜と、該金属酸化物膜に隣接する第1の膜と、該第1の膜を挟んで前記金属酸化物膜に対向する第2の膜とを備える電子デバイスの製造方法であって、
前記第2の膜を弗素含有膜で構成し、該弗素含有膜から弗素原子を前記金属酸化物膜へ拡散させ、
前記第1の膜及び前記金属酸化物膜の境界における前記弗素原子の濃度が、前記金属酸化物膜の前記境界以外の部分における前記弗素原子の濃度よりも高く且つ前記第2の膜における弗素原子の濃度よりも低いことを特徴とする電子デバイスの製造方法。 - 酸化物半導体をなす金属酸化物膜と、該金属酸化物膜に他の膜を挟んで隣接する弗素含有膜とを備える電子デバイスの製造方法であって、
前記金属酸化物膜にはチャネルが形成され、前記他の膜及び前記弗素含有膜は絶縁膜であり、
弗化物のガスと、酸素原子及び窒素原子の少なくともいずれかを含むガスとを用いたCVD(Chemical Vapor Deposition)によって前記弗素含有膜を形成し、
前記弗素含有膜から弗素原子を拡散させることにより、前記他の膜中の弗素原子の濃度分布は、前記他の膜における前記金属酸化物膜との境界以外の部分において前記境界に向けて低下し且つ前記境界において増加する濃度勾配を有するが、前記境界において増加した弗素原子の濃度は前記弗素含有膜における弗素原子の濃度よりも低いことを特徴とする電子デバイスの製造方法。 - 前記CVDに用いられるいずれのガスも水素原子を含まないことを特徴とする請求項7記載の電子デバイスの製造方法。
- 前記CVDはICP(Inductively Coupled Plasma)、若しくはマイクロ波プラズマ を用いるプラズマ処理装置によって実行されることを特徴とする請求項7又は8記載の電子デバイスの製造方法。
- 前記弗素含有膜は弗素含有窒化珪素(SiN:F)膜からなり、前記CVDで用いられるガスは、四弗化珪素(SiF4)ガス及び窒素(N2)ガスを含むことを特徴とする請求項7乃至9のいずれか1項に記載の電子デバイスの製造方法。
- 前記弗素含有膜は弗素含有酸化珪素(SiO:F)膜からなり、前記CVDで用いられるガスは、四弗化珪素ガス、並びに、酸素(O2)ガス及び亜酸化窒素(N2O)ガスの少なくとも一方を含むことを特徴とする請求項7乃至9のいずれか1項に記載の電子デバイスの製造方法。
- 前記弗素含有膜は弗素含有酸窒化珪素(SiON:F)膜からなり、前記CVDで用いられるガスは、四弗化珪素ガス、窒素ガス、並びに、酸素ガス及び亜酸化窒素ガスの少なくとも一方を含むことを特徴とする請求項7乃至9のいずれか1項に記載の電子デバイスの製造方法。
- 酸化物半導体をなす金属酸化物膜と、該金属酸化物膜に他の膜を挟んで隣接する弗素含有膜とを備える電子デバイスの製造装置であって、
前記金属酸化物膜にはチャネルが形成され、前記他の膜及び前記弗素含有膜は絶縁膜であり、
弗化物のガスと、酸素原子及び窒素原子の少なくともいずれかを含むガスとを用いたCVDによって前記弗素含有膜を形成し、
前記弗素含有膜から弗素原子を拡散させることにより、前記他の膜中の弗素原子の濃度分布は、前記他の膜における前記金属酸化物膜との境界以外の部分において前記境界に向けて低下し且つ前記境界において増加する濃度勾配を有するが、前記境界において増加した弗素原子の濃度は前記弗素含有膜における弗素原子の濃度よりも低いことを特徴とする電子デバイスの製造装置。 - 前記デバイスの製造装置はICP、若しくはマイクロ波プラズマを用いるプラズマ処理装置によって実現されることを特徴とする請求項13記載の電子デバイスの製造装置。
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JP2014203379A JP6392061B2 (ja) | 2014-10-01 | 2014-10-01 | 電子デバイス、その製造方法、及びその製造装置 |
KR1020150135683A KR101973233B1 (ko) | 2014-10-01 | 2015-09-24 | 전자 디바이스, 그 제조 방법, 및 그 제조 장치 |
CN201510633441.XA CN105489655B (zh) | 2014-10-01 | 2015-09-29 | 电子设备及其制造方法和其制造装置 |
TW104132175A TWI666707B (zh) | 2014-10-01 | 2015-09-30 | 電子元件、其製造方法及其製造裝置 |
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CN112687542B (zh) * | 2019-10-17 | 2022-03-29 | 西安交通大学 | 一种氢终端金刚石转化为氟终端金刚石的方法 |
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