GB1116250A - Semiconductor devices - Google Patents

Semiconductor devices

Info

Publication number
GB1116250A
GB1116250A GB5410566A GB5410566A GB1116250A GB 1116250 A GB1116250 A GB 1116250A GB 5410566 A GB5410566 A GB 5410566A GB 5410566 A GB5410566 A GB 5410566A GB 1116250 A GB1116250 A GB 1116250A
Authority
GB
United Kingdom
Prior art keywords
zone
voltage
layer
ohm
resistivity
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
GB5410566A
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of GB1116250A publication Critical patent/GB1116250A/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 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means

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)
  • Bipolar Integrated Circuits (AREA)
  • Electrodes Of Semiconductors (AREA)
  • Electronic Switches (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

1,116,250. Variable capacitance diodes. ITT INDUSTRIES, Inc. 2 Dec., 1966 [3 Dec., 1965], No. 54105/66. Heading H1K. A variable capacitance diode has a zone configuration PNP or NPN with contacts on the outer zones. The relationship between the junction areas and the zone dopings are so selected that for a given range of applied voltage the rate of change of capacitance with voltage differs in accordance with the polarity of the voltage. In the device illustrated in Fig. 1 zone 1 has a resistivity of 0À01 ohm. cm. and a thickness greater than the minority carrier diffusion length while layers 2 and 3, each 7 u thick, have a resistivity of 1 ohm. cm. Graded layer 9 is formed by diffusion while layer 2 is masked. After etching away the central portion of the masking layer 4 acceptor material is diffused in to form layers 7 and 10.
GB5410566A 1965-12-03 1966-12-02 Semiconductor devices Expired GB1116250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ0029509 1965-12-03

Publications (1)

Publication Number Publication Date
GB1116250A true GB1116250A (en) 1968-06-06

Family

ID=7203622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5410566A Expired GB1116250A (en) 1965-12-03 1966-12-02 Semiconductor devices

Country Status (3)

Country Link
DE (1) DE1514070C3 (en)
FR (1) FR1508404A (en)
GB (1) GB1116250A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199198B1 (en) * 1972-09-08 1977-12-30 Korovin Stanisl V
DE3005301C2 (en) * 1980-02-13 1985-11-21 Telefunken electronic GmbH, 7100 Heilbronn Varactor or mixer diode
GB2104725B (en) * 1981-07-17 1986-04-09 Clarion Co Ltd Variable capacitance device

Also Published As

Publication number Publication date
DE1514070C3 (en) 1975-06-19
DE1514070A1 (en) 1969-08-21
DE1514070B2 (en) 1972-05-10
FR1508404A (en) 1968-01-05

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