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
selenium
light
dry
relating
improvements
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
Priority to US788948A priority Critical patent/US2479301A/en
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

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. 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
    • H01L21/10Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/101Application of the selenium or tellurium to the foundation plate
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02518Deposited layers
    • H01L21/02521Materials
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02612Formation types
    • H01L21/02617Deposition types
    • H01L21/02623Liquid deposition
    • H01L21/02625Liquid deposition using melted materials
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. 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
    • H01L21/10Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/105Treatment of the surface of the selenium or tellurium layer after having been made conductive
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. 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
    • H01L21/10Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/108Provision of discrete insulating layers, i.e. non-genetic barrier layers

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)

Priority Applications (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 A method of manufacturing a dry rectifier
US2811653A (en) * 1953-05-22 1957-10-29 Rca Corp Semiconductor devices
NL203974A (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 A process for the preparation of selenium rectifiers high Sperrfaehigkeit
DE1219591B (en) * 1962-04-07 1966-06-23 Licentia Gmbh A method for applying a gleichmaesigen Thalliumselenidschicht on the selenium layer of a rectifier
DE1206529B (en) * 1962-04-13 1965-12-09 Licentia Gmbh A process for the preparation of selenium rectifiers high Sperrfaehigkeit
DE1764223B2 (en) * 1968-04-26 1976-07-29 Selenium rectifiers plate for use as SPD and procedures for making

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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