JPS5516461B2 - - Google Patents

Info

Publication number
JPS5516461B2
JPS5516461B2 JP3322474A JP3322474A JPS5516461B2 JP S5516461 B2 JPS5516461 B2 JP S5516461B2 JP 3322474 A JP3322474 A JP 3322474A JP 3322474 A JP3322474 A JP 3322474A JP S5516461 B2 JPS5516461 B2 JP S5516461B2
Authority
JP
Japan
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
JP3322474A
Other versions
JPS50126386A (ja
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 filed Critical
Priority to JP3322474A priority Critical patent/JPS5516461B2/ja
Priority to GB11477/75A priority patent/GB1504592A/en
Priority to IT21631/75A priority patent/IT1034520B/it
Priority to CA222,877A priority patent/CA1055624A/en
Priority to US05/561,298 priority patent/US4003009A/en
Priority to DE19752512870 priority patent/DE2512870A1/de
Priority to NL7503512A priority patent/NL7503512A/xx
Priority to FR7509350A priority patent/FR2275069A1/fr
Publication of JPS50126386A publication Critical patent/JPS50126386A/ja
Publication of JPS5516461B2 publication Critical patent/JPS5516461B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
    • 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
    • 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
    • H01L29/93—Variable capacitance diodes, e.g. varactors

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)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Semiconductor Integrated Circuits (AREA)
JP3322474A 1974-03-25 1974-03-25 Expired JPS5516461B2 (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP3322474A JPS5516461B2 (ja) 1974-03-25 1974-03-25
GB11477/75A GB1504592A (en) 1974-03-25 1975-03-19 Resonance circuits using variable capacitance semiconductor elements
IT21631/75A IT1034520B (it) 1974-03-25 1975-03-24 Circuito a risonanza utilizzante oiodi a capacita variabile
CA222,877A CA1055624A (en) 1974-03-25 1975-03-24 Resonant circuit using variable capacitance diode
US05/561,298 US4003009A (en) 1974-03-25 1975-03-24 Resonant circuit using variable capacitance diode
DE19752512870 DE2512870A1 (de) 1974-03-25 1975-03-24 Resonanzkreis mit einem element mit veraenderbarer kapazitaet
NL7503512A NL7503512A (nl) 1974-03-25 1975-03-24 Resonantienetwerk met een halfgeleiderelement van variabele capaciteitswaarde.
FR7509350A FR2275069A1 (fr) 1974-03-25 1975-03-25 Circuit resonnant a semi-conducteur de capacite variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3322474A JPS5516461B2 (ja) 1974-03-25 1974-03-25

Publications (2)

Publication Number Publication Date
JPS50126386A JPS50126386A (ja) 1975-10-04
JPS5516461B2 true JPS5516461B2 (ja) 1980-05-02

Family

ID=12380467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3322474A Expired JPS5516461B2 (ja) 1974-03-25 1974-03-25

Country Status (8)

Country Link
US (1) US4003009A (ja)
JP (1) JPS5516461B2 (ja)
CA (1) CA1055624A (ja)
DE (1) DE2512870A1 (ja)
FR (1) FR2275069A1 (ja)
GB (1) GB1504592A (ja)
IT (1) IT1034520B (ja)
NL (1) NL7503512A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869339U (ja) * 1981-10-29 1983-05-11 三洋電機株式会社 警報信号発生回路

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4903086A (en) * 1988-01-19 1990-02-20 E-Systems, Inc. Varactor tuning diode with inversion layer
US4987459A (en) * 1989-01-19 1991-01-22 Toko, Inc. Variable capacitance diode element having wide capacitance variation range
FI914763A0 (fi) * 1991-10-09 1991-10-09 Nokia Mobile Phones Ltd Kompensering av en spaenningsstyrd olineaer komponent i en radiotelefon.
US5914513A (en) * 1997-06-23 1999-06-22 The Board Of Trustees Of The University Of Illinois Electronically tunable capacitor
US6278871B1 (en) * 1998-12-29 2001-08-21 U.S. Philips Corporation Integrated circuit including a low-dispersion capacitive network
US7235862B2 (en) 2001-07-10 2007-06-26 National Semiconductor Corporation Gate-enhanced junction varactor
US7081663B2 (en) * 2002-01-18 2006-07-25 National Semiconductor Corporation Gate-enhanced junction varactor with gradual capacitance variation
KR100450824B1 (ko) * 2002-11-06 2004-10-01 삼성전자주식회사 고주파용 가변 캐패시터 구조 및 그 제조방법
US20090135306A1 (en) * 2005-03-29 2009-05-28 Nxp B.V. Receiver having a tuning capacitance

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591121A1 (de) * 1966-03-07 1970-05-14 Fujitsu Ltd Frequenzmodulator
US3579278A (en) * 1967-10-12 1971-05-18 Varian Associates Surface barrier diode having a hypersensitive {72 {30 {0 region forming a hypersensitive voltage variable capacitor
US3535600A (en) * 1968-10-10 1970-10-20 Gen Electric Mos varactor diode
JPS4934262A (ja) * 1972-07-28 1974-03-29
US3808472A (en) * 1972-12-29 1974-04-30 Gen Electric Variable capacitance semiconductor devices
US3825858A (en) * 1973-02-23 1974-07-23 Hitachi Ltd Local oscillator for use in a vhf tuner for a television receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869339U (ja) * 1981-10-29 1983-05-11 三洋電機株式会社 警報信号発生回路

Also Published As

Publication number Publication date
GB1504592A (en) 1978-03-22
JPS50126386A (ja) 1975-10-04
US4003009A (en) 1977-01-11
IT1034520B (it) 1979-10-10
CA1055624A (en) 1979-05-29
FR2275069A1 (fr) 1976-01-09
DE2512870A1 (de) 1975-10-09
NL7503512A (nl) 1975-09-29
FR2275069B1 (ja) 1978-12-08

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