JPS5643764A - Manufacture of semiconductor device - Google Patents

Manufacture of semiconductor device

Info

Publication number
JPS5643764A
JPS5643764A JP11980779A JP11980779A JPS5643764A JP S5643764 A JPS5643764 A JP S5643764A JP 11980779 A JP11980779 A JP 11980779A JP 11980779 A JP11980779 A JP 11980779A JP S5643764 A JPS5643764 A JP S5643764A
Authority
JP
Japan
Prior art keywords
oxide film
thickness
contact hole
resist
etched
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
JP11980779A
Other languages
Japanese (ja)
Inventor
Toshimoto Kodaira
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP11980779A priority Critical patent/JPS5643764A/en
Publication of JPS5643764A publication Critical patent/JPS5643764A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor 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
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68Types 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
    • H01L29/76Unipolar devices, e.g. field effect transistors
    • H01L29/772Field effect transistors
    • H01L29/78Field effect transistors with field effect produced by an insulated gate

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Electrodes Of Semiconductors (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)

Abstract

PURPOSE:To improve yield in case of production by a method wherein insulating films are formed in steps that are divided at least twice, contact holes are formed every formation, and the disconnection of metallic wiring is prevented by the difference in level. CONSTITUTION:A silicon oxide film 6 is deposited on a surface of substrate silicon 5 by means of a CVD method. The thickness of the oxide film at that time is made approximate half of the thickness of the final oxide film. A resist film 7 is formed for etching a contact hole, the desired pattern in made up, and the contact hole is etched first. All the resist film 7 is removed after etching, and an oxide film 8 is built up again on the whole surface in the same manner as the preceding time. The sum of the oxide film 7, 8 is made the thickness of an oxide film finally necessary for the protection of the surface. A contact hole is etched and the resist is exfoliated in the same manner as mentioned above.
JP11980779A 1979-09-18 1979-09-18 Manufacture of semiconductor device Pending JPS5643764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11980779A JPS5643764A (en) 1979-09-18 1979-09-18 Manufacture of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11980779A JPS5643764A (en) 1979-09-18 1979-09-18 Manufacture of semiconductor device

Publications (1)

Publication Number Publication Date
JPS5643764A true JPS5643764A (en) 1981-04-22

Family

ID=14770704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11980779A Pending JPS5643764A (en) 1979-09-18 1979-09-18 Manufacture of semiconductor device

Country Status (1)

Country Link
JP (1) JPS5643764A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601846A (en) * 1983-06-18 1985-01-08 Toshiba Corp Multilayer interconnection structure semiconductor device and manufacture thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS601846A (en) * 1983-06-18 1985-01-08 Toshiba Corp Multilayer interconnection structure semiconductor device and manufacture thereof

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