ES174802A1 - IMPROVEMENTS IN THE MANUFACTURE OF SELENIUM RECTIFIERS. - Google Patents

IMPROVEMENTS IN THE MANUFACTURE OF SELENIUM RECTIFIERS.

Info

Publication number
ES174802A1
ES174802A1 ES0174802A ES174802A ES174802A1 ES 174802 A1 ES174802 A1 ES 174802A1 ES 0174802 A ES0174802 A ES 0174802A ES 174802 A ES174802 A ES 174802A ES 174802 A1 ES174802 A1 ES 174802A1
Authority
ES
Spain
Prior art keywords
selenium
manufacture
powder
rectifiers
selenium 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
ES0174802A
Other languages
Spanish (es)
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 ES174802A1 publication Critical patent/ES174802A1/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/30—Igniting arrangements
    • H01J17/32—Igniting by associated radioactive materials or fillings
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Light Receiving Elements (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Die Bonding (AREA)

Abstract

Perfeccionamientos en la fabricación de rectificadores de selenio por la superficie de la base o soporte en forma de polvo relativamente fino que se calienta después a presión a una temperatura suficiente para templar el material en polvo pero considerablemente más baja que el punto de fusión del selenio en el que el material empleado se prepara fundiendo primeramente el selenio añadiendole una parte de diósido de selenio con o sin otras substancias vaciándose depués el material fundido preferentemente en forma de una hoja delgada relativamente y después de enfriado se rompe y muele a polvo para los fines especificados.Improvements in the manufacture of selenium rectifiers by the surface of the base or support in the form of a relatively fine powder which is then heated under pressure to a temperature sufficient to quench the powder but considerably lower than the melting point of selenium in whereby the material used is prepared by first melting the selenium by adding to it a part of selenium dioside with or without other substances, the molten material then being cast preferably in the form of a relatively thin sheet and after cooling broken and ground to a powder for the specified purposes .

ES0174802A 1939-05-26 1946-08-29 IMPROVEMENTS IN THE MANUFACTURE OF SELENIUM RECTIFIERS. Expired ES174802A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15717/39A GB529792A (en) 1939-05-26 1939-05-26 Improvements relating to the manufacture of selenium and like rectifiers

Publications (1)

Publication Number Publication Date
ES174802A1 true ES174802A1 (en) 1946-10-16

Family

ID=10064202

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0174802A Expired ES174802A1 (en) 1939-05-26 1946-08-29 IMPROVEMENTS IN THE MANUFACTURE OF SELENIUM RECTIFIERS.

Country Status (6)

Country Link
US (1) US2235051A (en)
BE (1) BE467188A (en)
CH (2) CH260423A (en)
ES (1) ES174802A1 (en)
FR (1) FR864586A (en)
GB (1) GB529792A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB561889A (en) * 1942-12-03 1944-06-08 Standard Telephones Cables Ltd Improvements in or relating to the manufacture of rectifier discs
US2450020A (en) * 1942-12-03 1948-09-28 Int Standard Electric Corp Manufacture of rectifier disks
US2444430A (en) * 1943-07-13 1948-07-06 Fed Telephone & Radio Corp Metal rectifier element
BE475134A (en) * 1943-10-26
US2444255A (en) * 1944-11-10 1948-06-29 Gen Electric Fabrication of rectifier cells
US2685728A (en) * 1949-02-21 1954-08-10 Bell Telephone Labor Inc Translating material and method of manufacture
US2659846A (en) * 1951-05-15 1953-11-17 Int Rectifier Corp Selenium element and method of making it
US2743506A (en) * 1952-02-23 1956-05-01 Int Resistance Co Method of manufacturing rectifier cells
DE1041598B (en) * 1953-08-24 1958-10-23 Siemens Ag Process for the production of selenium rectifiers
US2970730A (en) * 1957-01-08 1961-02-07 Motorola Inc Dicing semiconductor wafers
US3086281A (en) * 1957-05-06 1963-04-23 Shockley William Semiconductor leads and method of attaching
NL241641A (en) * 1958-07-25
US3457633A (en) * 1962-12-31 1969-07-29 Ibm Method of making crystal shapes having optically related surfaces

Also Published As

Publication number Publication date
CH260423A (en) 1949-03-15
US2235051A (en) 1941-03-18
GB529792A (en) 1940-11-28
FR864586A (en) 1941-04-30
BE467188A (en)
CH260424A (en) 1949-03-15

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