GB2092372B - Variable capacitor - Google Patents

Variable capacitor

Info

Publication number
GB2092372B
GB2092372B GB8137539A GB8137539A GB2092372B GB 2092372 B GB2092372 B GB 2092372B GB 8137539 A GB8137539 A GB 8137539A GB 8137539 A GB8137539 A GB 8137539A GB 2092372 B GB2092372 B GB 2092372B
Authority
GB
United Kingdom
Prior art keywords
variable capacitor
capacitor
variable
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.)
Expired
Application number
GB8137539A
Other languages
English (en)
Other versions
GB2092372A (en
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion 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 Clarion Co Ltd filed Critical Clarion Co Ltd
Publication of GB2092372A publication Critical patent/GB2092372A/en
Application granted granted Critical
Publication of GB2092372B publication Critical patent/GB2092372B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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 with potential-jump barrier or surface barrier
    • H01L29/93—Variable capacitance diodes, e.g. varactors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/10—Tuning of a resonator by means of digitally controlled capacitor bank
GB8137539A 1980-12-12 1981-12-11 Variable capacitor Expired GB2092372B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17622580A JPS5799787A (en) 1980-12-12 1980-12-12 Variable capacitance device

Publications (2)

Publication Number Publication Date
GB2092372A GB2092372A (en) 1982-08-11
GB2092372B true GB2092372B (en) 1985-01-30

Family

ID=16009809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8137539A Expired GB2092372B (en) 1980-12-12 1981-12-11 Variable capacitor

Country Status (4)

Country Link
JP (1) JPS5799787A (ja)
DE (1) DE3149257A1 (ja)
FR (1) FR2496343B1 (ja)
GB (1) GB2092372B (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59154077A (ja) * 1983-02-23 1984-09-03 Clarion Co Ltd 可変容量素子
DE4332798A1 (de) * 1993-09-27 1995-03-30 Telefunken Microelectron Schaltungsanordnung für einen abstimmbaren Schwingkreis
WO1995031010A1 (en) * 1994-05-10 1995-11-16 Valery Moiseevich Ioffe Varicap
US9847433B2 (en) * 2014-05-30 2017-12-19 Interchip Corporation Integrated MOS varicap, and voltage controlled oscillator and filter having same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384818A (en) * 1972-09-18 1975-02-26 Plessey Co Ltd Electrical capacitive storage cells
US3890635A (en) * 1973-12-26 1975-06-17 Gen Electric Variable capacitance semiconductor devices
JPS51123080A (en) * 1975-04-21 1976-10-27 Hitachi Ltd Variable capacitance element
US4001869A (en) * 1975-06-09 1977-01-04 Sprague Electric Company Mos-capacitor for integrated circuits
US4028694A (en) * 1975-06-10 1977-06-07 International Business Machines Corporation A/D and D/A converter using C-2C ladder network
JPS55120177A (en) * 1979-03-12 1980-09-16 Clarion Co Ltd Variable capacitance diode with plural electrode structures
JPS55120178A (en) * 1979-03-12 1980-09-16 Clarion Co Ltd Mis variable capacitance diode with plural electrode structures
JPS55120173A (en) * 1979-03-12 1980-09-16 Clarion Co Ltd Schottky type variable capacitance diode with plural electrode structures
GB2060250B (en) * 1979-03-12 1983-12-14 Clarion Co Ltd Controllable semiconductor capacitors
JPS55120174A (en) * 1979-03-12 1980-09-16 Clarion Co Ltd P-n junction variable capacitance diode with plural electrode structures
JPS55120176A (en) * 1979-03-12 1980-09-16 Clarion Co Ltd Variable capacitance diode with plural electrode structures

Also Published As

Publication number Publication date
GB2092372A (en) 1982-08-11
JPH0142149B2 (ja) 1989-09-11
FR2496343B1 (fr) 1987-05-15
DE3149257A1 (de) 1982-07-29
DE3149257C2 (ja) 1992-04-09
FR2496343A1 (fr) 1982-06-18
JPS5799787A (en) 1982-06-21

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19930318

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951211