JPS5649557A - Integrated circuit for high-frequency oscillation circuit - Google Patents

Integrated circuit for high-frequency oscillation circuit

Info

Publication number
JPS5649557A
JPS5649557A JP12516479A JP12516479A JPS5649557A JP S5649557 A JPS5649557 A JP S5649557A JP 12516479 A JP12516479 A JP 12516479A JP 12516479 A JP12516479 A JP 12516479A JP S5649557 A JPS5649557 A JP S5649557A
Authority
JP
Japan
Prior art keywords
layer
under
potential
frequency oscillation
isolation
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
JP12516479A
Other languages
Japanese (ja)
Inventor
Kozo Yoshihisa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12516479A priority Critical patent/JPS5649557A/en
Publication of JPS5649557A publication Critical patent/JPS5649557A/en
Pending legal-status Critical Current

Links

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
    • H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
    • H01L29/92—Capacitors having potential barriers
    • H01L29/94—Metal-insulator-semiconductors, e.g. MOS

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To prevent frequency drift with a variable capacity fixed by grounding or fixing to the potential of power supply that of an isolation under a junction pad. CONSTITUTION:A P<+> islation layer 7 is made under an oxide film 4 provided under a junction pad 5 and a low impedance is provided between the layer 7 and a substrate 1. Therefore, isolation potential is fixed on grounding (substrate 1), or an N<+> layer 8 is provided to extend to an N<-> layer through the film 4 and connected to a power source. Thereby, if a high-frequency oscillation circuit is made of IC, the potential of the isolation under the pad 5 does not change so that frequency drift considerably decreases immediately after power supply.
JP12516479A 1979-09-28 1979-09-28 Integrated circuit for high-frequency oscillation circuit Pending JPS5649557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12516479A JPS5649557A (en) 1979-09-28 1979-09-28 Integrated circuit for high-frequency oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12516479A JPS5649557A (en) 1979-09-28 1979-09-28 Integrated circuit for high-frequency oscillation circuit

Publications (1)

Publication Number Publication Date
JPS5649557A true JPS5649557A (en) 1981-05-06

Family

ID=14903456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12516479A Pending JPS5649557A (en) 1979-09-28 1979-09-28 Integrated circuit for high-frequency oscillation circuit

Country Status (1)

Country Link
JP (1) JPS5649557A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911587A (en) * 1972-06-01 1974-02-01
JPS5310267A (en) * 1976-07-15 1978-01-30 Itt Semiconductor device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4911587A (en) * 1972-06-01 1974-02-01
JPS5310267A (en) * 1976-07-15 1978-01-30 Itt Semiconductor device

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