JPS574141A - Wiring structure in semiconductor device - Google Patents

Wiring structure in semiconductor device

Info

Publication number
JPS574141A
JPS574141A JP7849280A JP7849280A JPS574141A JP S574141 A JPS574141 A JP S574141A JP 7849280 A JP7849280 A JP 7849280A JP 7849280 A JP7849280 A JP 7849280A JP S574141 A JPS574141 A JP S574141A
Authority
JP
Japan
Prior art keywords
film
layers
metal
wiring
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7849280A
Other languages
Japanese (ja)
Inventor
Hirotetsu Yoshino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP7849280A priority Critical patent/JPS574141A/en
Publication of JPS574141A publication Critical patent/JPS574141A/en
Pending legal-status Critical Current

Links

Landscapes

  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)

Abstract

PURPOSE:To reduce a height difference in the layers and prevent a cutting of the upper layer wirings by a method wherein inter-layer insulative film of Si-gate MOS device is of two layers, a metal layer contacted with a substrate area is arranged between the layers, and the metal layer is connected to the upper layer wirings. CONSTITUTION:Gate metal 6 composed of gate film 5 and poly-Si or Mo is arranged on, for example, P type substrate 1 divided by oxidation film 2, the wiring 7 is arranged on the oxidation film 2, thereafter PSG film 20 is accumulated to about 1/2 of a required thickness as an inter-layer film. Hot heat treatment is applied to have a diffusion N type layers 3, 4 in a source drain area, then an opening is made in the film 20, and a contact metal for example Al is extended over the oxidation film 2 to be formed thereon. Then, the insulation film 23 is formed to show a thickness which is substantially the same as that of the film 20, a contact hole is formed in the film 23, Al wiring 25 in the upper layer is formed, and connected to the contact metal 22. Thus, it is possible to reduce a height difference between the contact areas, so that a cutting of Al wiring may be prevented and its reliability in operation may also be improved.
JP7849280A 1980-06-10 1980-06-10 Wiring structure in semiconductor device Pending JPS574141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7849280A JPS574141A (en) 1980-06-10 1980-06-10 Wiring structure in semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7849280A JPS574141A (en) 1980-06-10 1980-06-10 Wiring structure in semiconductor device

Publications (1)

Publication Number Publication Date
JPS574141A true JPS574141A (en) 1982-01-09

Family

ID=13663467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7849280A Pending JPS574141A (en) 1980-06-10 1980-06-10 Wiring structure in semiconductor device

Country Status (1)

Country Link
JP (1) JPS574141A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4994402A (en) * 1987-06-26 1991-02-19 Hewlett-Packard Company Method of fabricating a coplanar, self-aligned contact structure in a semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4994402A (en) * 1987-06-26 1991-02-19 Hewlett-Packard Company Method of fabricating a coplanar, self-aligned contact structure in a semiconductor device

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