JPS5650579A - Manufacture of junction type field effect semiconductor device - Google Patents

Manufacture of junction type field effect semiconductor device

Info

Publication number
JPS5650579A
JPS5650579A JP12539479A JP12539479A JPS5650579A JP S5650579 A JPS5650579 A JP S5650579A JP 12539479 A JP12539479 A JP 12539479A JP 12539479 A JP12539479 A JP 12539479A JP S5650579 A JPS5650579 A JP S5650579A
Authority
JP
Japan
Prior art keywords
diffusing
gate
drain
source
type
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
JP12539479A
Other languages
Japanese (ja)
Inventor
Ryoichi Ono
Fujihiko Inomata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12539479A priority Critical patent/JPS5650579A/en
Publication of JPS5650579A publication Critical patent/JPS5650579A/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
    • H01L29/80Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier
    • H01L29/808Field effect transistors with field effect produced by a PN or other rectifying junction gate, i.e. potential-jump barrier with a PN junction gate, e.g. PN homojunction 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)
  • Junction Field-Effect Transistors (AREA)

Abstract

PURPOSE:To improve the improper withstand voltage of a junction type field effect semiconductor device by forming gate diffused windows of source and drain of one mask and thereby improving the diffusing mask matching accuracy in a process of manufacturing the transistor. CONSTITUTION:An n type epitaxial layer 2 is grown on a P type silicon substrate 1 of a wafer, a surface thermal oxide film (SiO2 film) 3 is formed on the wafer, and source and drain diffusing windows 4 and gate diffusing window 7 are simultaneously formed by an etching treatment with one photomask. Subsequently, the gate diffusing window 7 is shielded with a CVD.SiO2 film 9. Phosphorus (or arsenid) is deposited (or ion implated) or diffused through the source and drain diffusing windows, and n<+> type source and drain 5, 6 are formed. Further, a CVD.SiO2film 9 is removed with etchant, boron is diffused through the gate diffusing window 7, and a p<+> type gate 8 is thus formed.
JP12539479A 1979-10-01 1979-10-01 Manufacture of junction type field effect semiconductor device Pending JPS5650579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12539479A JPS5650579A (en) 1979-10-01 1979-10-01 Manufacture of junction type field effect semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12539479A JPS5650579A (en) 1979-10-01 1979-10-01 Manufacture of junction type field effect semiconductor device

Publications (1)

Publication Number Publication Date
JPS5650579A true JPS5650579A (en) 1981-05-07

Family

ID=14909047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12539479A Pending JPS5650579A (en) 1979-10-01 1979-10-01 Manufacture of junction type field effect semiconductor device

Country Status (1)

Country Link
JP (1) JPS5650579A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437625A (en) * 1992-04-06 1995-08-01 Kurihashi; Katsuaki Apparatus for intubation of lacrimal drainage pathway
EP1048275A2 (en) 1999-04-28 2000-11-02 MLC Limited Company Apparatus for intubation of lacrimal duct

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437625A (en) * 1992-04-06 1995-08-01 Kurihashi; Katsuaki Apparatus for intubation of lacrimal drainage pathway
EP1048275A2 (en) 1999-04-28 2000-11-02 MLC Limited Company Apparatus for intubation of lacrimal duct

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