GB2091038B - Step-wise variable capacitor - Google Patents

Step-wise variable capacitor

Info

Publication number
GB2091038B
GB2091038B GB8137178A GB8137178A GB2091038B GB 2091038 B GB2091038 B GB 2091038B GB 8137178 A GB8137178 A GB 8137178A GB 8137178 A GB8137178 A GB 8137178A GB 2091038 B GB2091038 B GB 2091038B
Authority
GB
United Kingdom
Prior art keywords
variable capacitor
wise variable
wise
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
GB8137178A
Other versions
GB2091038A (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 GB2091038A publication Critical patent/GB2091038A/en
Application granted granted Critical
Publication of GB2091038B publication Critical patent/GB2091038B/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
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture

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)
GB8137178A 1980-12-10 1981-12-09 Step-wise variable capacitor Expired GB2091038B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17484880A JPS5797682A (en) 1980-12-10 1980-12-10 Variable capacitance device

Publications (2)

Publication Number Publication Date
GB2091038A GB2091038A (en) 1982-07-21
GB2091038B true GB2091038B (en) 1985-01-03

Family

ID=15985702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8137178A Expired GB2091038B (en) 1980-12-10 1981-12-09 Step-wise variable capacitor

Country Status (4)

Country Link
JP (1) JPS5797682A (en)
DE (1) DE3148968A1 (en)
FR (1) FR2495821B1 (en)
GB (1) GB2091038B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709225A (en) * 1985-12-16 1987-11-24 Crystal Semiconductor Corporation Self-calibration method for capacitors in a monolithic integrated circuit
DE4231399A1 (en) * 1992-08-20 1994-02-24 Rexroth Mannesmann Gmbh Hydraulic control device
DE19758345A1 (en) * 1997-12-22 1999-06-24 Inst Halbleiterphysik Gmbh Digitally adjustable capacitance for filter, oscillator, matching circuits, etc.
EP1086475A1 (en) * 1998-05-11 2001-03-28 Manvel Zakharian The method of obtaining the adjustable capacitor
JP4498836B2 (en) 2004-06-23 2010-07-07 株式会社デンソー Capacitance element
US7365959B1 (en) 2004-08-12 2008-04-29 Charles Barry Ward Multi value capacitor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1180928A (en) * 1966-04-28 1970-02-11 Plessey Co Ltd Improvements in or relating to Thin Film Circuit Devices.
FR1496638A (en) * 1966-10-14 1967-09-29 Int Standard Electric Corp High quality capacitor
CA922393A (en) * 1970-01-14 1973-03-06 J. Roeder Paul Planar capacitor
JPS51123080A (en) * 1975-04-21 1976-10-27 Hitachi Ltd Variable capacitance element
US4028694A (en) * 1975-06-10 1977-06-07 International Business Machines Corporation A/D and D/A converter using C-2C ladder network
DE2912439A1 (en) * 1979-03-29 1980-10-16 Standard Elektrik Lorenz Ag INTEGRATED SEMICONDUCTOR CIRCUIT WITH INTEGRATED STORAGE CAPACITY

Also Published As

Publication number Publication date
GB2091038A (en) 1982-07-21
DE3148968A1 (en) 1982-07-01
FR2495821B1 (en) 1986-05-30
JPS5797682A (en) 1982-06-17
FR2495821A1 (en) 1982-06-11

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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: 19931209