GB648038A - Improvements in or relating to electrical circuit elements, such as dry-contact rectifiers or light-sensitive devices - Google Patents

Improvements in or relating to electrical circuit elements, such as dry-contact rectifiers or light-sensitive devices

Info

Publication number
GB648038A
GB648038A GB29241/48A GB2924148A GB648038A GB 648038 A GB648038 A GB 648038A GB 29241/48 A GB29241/48 A GB 29241/48A GB 2924148 A GB2924148 A GB 2924148A GB 648038 A GB648038 A GB 648038A
Authority
GB
United Kingdom
Prior art keywords
light
selenium
dry
relating
electrical circuit
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
GB29241/48A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
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 Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB648038A publication Critical patent/GB648038A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture 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
    • H01L21/06—Manufacture 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
    • H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/101—Application of the selenium or tellurium to the foundation plate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104—Forming layers
    • H01L21/02365—Forming inorganic semiconducting materials on a substrate
    • H01L21/02518—Deposited layers
    • H01L21/02521—Materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104—Forming layers
    • H01L21/02365—Forming inorganic semiconducting materials on a substrate
    • H01L21/02612—Formation types
    • H01L21/02617—Deposition types
    • H01L21/02623—Liquid deposition
    • H01L21/02625—Liquid deposition using melted materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture 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
    • H01L21/06—Manufacture 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
    • H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/105—Treatment of the surface of the selenium or tellurium layer after having been made conductive
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture 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
    • H01L21/06—Manufacture 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
    • H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/108—Provision of discrete insulating layers, i.e. non-genetic barrier layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Coating With Molten Metal (AREA)

Abstract

648,038. Dry contact rectifiers. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Nov. 10, 1948, No. 29241. Convention date, Nov. 29, 1947. Drawing to Specification. [Class 37] [Also in Group XL (b)] A dry contact rectifier or light-sensitive device comprises a base with its surface coated with selenium having a blocking layer of thallous selenide produced by immersing the selenium surface in a water solution of 0.01 normal concentration of thallous hydroxide at 25‹ C. for about 20 seconds ; and a counterelectrode of cadmium or cadmium-tin alloy is applied before or after annealing the element at 185‹ C. for 6-16 hours. The base-plate comprises a sand-blasted steel plate which is then nickel-plated and has a central hole for a spindle, the plate being rapidly rotated after immersion in molten selenium.
GB29241/48A 1947-11-29 1948-11-10 Improvements in or relating to electrical circuit elements, such as dry-contact rectifiers or light-sensitive devices Expired GB648038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US788948A US2479301A (en) 1947-11-29 1947-11-29 Selenium rectifier

Publications (1)

Publication Number Publication Date
GB648038A true GB648038A (en) 1950-12-28

Family

ID=25146090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29241/48A Expired GB648038A (en) 1947-11-29 1948-11-10 Improvements in or relating to electrical circuit elements, such as dry-contact rectifiers or light-sensitive devices

Country Status (4)

Country Link
US (1) US2479301A (en)
BE (1) BE485774A (en)
FR (1) FR975527A (en)
GB (1) GB648038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5867706A (en) * 1996-01-26 1999-02-02 International Business Machines Corp. Method of load balancing across the processors of a server

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE509989A (en) * 1939-01-22
US2643277A (en) * 1949-09-16 1953-06-23 Erwin E Falkenthal Photovoltaic cell
US2629039A (en) * 1950-06-07 1953-02-17 Weston Electrical Instr Corp Selenium cell and process for manufacturing the same
DE973817C (en) * 1951-03-05 1960-06-15 Licentia Gmbh Method of manufacturing a dry rectifier
US2811653A (en) * 1953-05-22 1957-10-29 Rca Corp Semiconductor devices
NL92960C (en) * 1955-02-07 1900-01-01
US2858239A (en) * 1956-03-13 1958-10-28 Siemens Ag Method for producing selenium rectifiers
DE1186555B (en) * 1962-04-07 1965-02-04 Licentia Gmbh Process for the production of selenium rectifiers with high blocking capability
DE1219591B (en) * 1962-04-07 1966-06-23 Licentia Gmbh Method for applying a uniform thallium selenide layer to the selenium layer of a rectifier
DE1206529B (en) * 1962-04-13 1965-12-09 Licentia Gmbh Process for the production of selenium rectifiers with high blocking capacity
FR2007532B1 (en) * 1968-04-26 1974-06-14 Siemens Ag

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB556152A (en) * 1942-03-17 1943-09-22 Westinghouse Brake & Signal Improvements relating to alternating electric current rectifiers of the selenium type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5867706A (en) * 1996-01-26 1999-02-02 International Business Machines Corp. Method of load balancing across the processors of a server

Also Published As

Publication number Publication date
US2479301A (en) 1949-08-16
BE485774A (en) 1900-01-01
FR975527A (en) 1951-03-06

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