GB561101A - Improvements relating to alternating electric current rectifiers of the selenium type - Google Patents

Improvements relating to alternating electric current rectifiers of the selenium type

Info

Publication number
GB561101A
GB561101A GB1022943A GB1022943A GB561101A GB 561101 A GB561101 A GB 561101A GB 1022943 A GB1022943 A GB 1022943A GB 1022943 A GB1022943 A GB 1022943A GB 561101 A GB561101 A GB 561101A
Authority
GB
United Kingdom
Prior art keywords
electric current
alternating electric
improvements relating
selenium
current rectifiers
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
GB1022943A
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Publication of GB561101A publication Critical patent/GB561101A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/06Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
    • H01L21/12Application of an electrode to the exposed surface of the selenium or tellurium after the selenium or tellurium has been applied to the foundation plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Die Bonding (AREA)

Abstract

561,101. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE& SIGNAL CO., Ltd., THOMPSON, L. E., and JENKINS, A. Oct. 30, 1942, No. 10229/43. Divided out of 556,152. [Class 37] ; A counter electrode is applied to a selenium rectifier by first coating the selenium with an insulating layer having an aperture or apertures, into each of which a piece of relatively soft metal is inserted and pressure applied to obtain a small and effectively limited rectifying area. Preferably the counter electrode contains a substantial amount of, or is composed of, thallium. Specification 503,335 is referred to.
GB1022943A 1942-10-30 1942-10-30 Improvements relating to alternating electric current rectifiers of the selenium type Expired GB561101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1022942 1942-10-30

Publications (1)

Publication Number Publication Date
GB561101A true GB561101A (en) 1944-05-04

Family

ID=9963991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1022943A Expired GB561101A (en) 1942-10-30 1942-10-30 Improvements relating to alternating electric current rectifiers of the selenium type

Country Status (2)

Country Link
FR (1) FR932696A (en)
GB (1) GB561101A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950664C (en) * 1949-07-31 1956-10-11 Siemens Ag Process for the production of dry rectifiers, in particular selenium rectifiers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950664C (en) * 1949-07-31 1956-10-11 Siemens Ag Process for the production of dry rectifiers, in particular selenium rectifiers

Also Published As

Publication number Publication date
FR932696A (en) 1948-03-30

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