GB554894A - Improvements relating to the manufacture of alternating current rectifiers of the selenium type - Google Patents

Improvements relating to the manufacture of alternating current rectifiers of the selenium type

Info

Publication number
GB554894A
GB554894A GB87242A GB87242A GB554894A GB 554894 A GB554894 A GB 554894A GB 87242 A GB87242 A GB 87242A GB 87242 A GB87242 A GB 87242A GB 554894 A GB554894 A GB 554894A
Authority
GB
United Kingdom
Prior art keywords
manufacture
alternating current
improvements relating
current rectifiers
selenium type
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
GB87242A
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
Priority to GB87242A priority Critical patent/GB554894A/en
Priority to US47173843 priority patent/US2378513A/en
Publication of GB554894A publication Critical patent/GB554894A/en
Priority to FR932625D priority patent/FR932625A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

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)
  • Rectifiers (AREA)

Abstract

554,894. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., THOMPSON, L. E., and JENKINS, A. Jan. 21, 1942, No. 872. [Class 37] The selenium-mixture layer of a rectifier has small quantities-e.g. 0.04 per cent-of antimony added to it. Specifications 523,673 and 529,791 are referred to.
GB87242A 1942-01-21 1942-01-21 Improvements relating to the manufacture of alternating current rectifiers of the selenium type Expired GB554894A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB87242A GB554894A (en) 1942-01-21 1942-01-21 Improvements relating to the manufacture of alternating current rectifiers of the selenium type
US47173843 US2378513A (en) 1942-01-21 1943-01-08 Alternating current rectifier of the selenium type
FR932625D FR932625A (en) 1942-01-21 1946-08-23 Selenium type AC rectifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB87242A GB554894A (en) 1942-01-21 1942-01-21 Improvements relating to the manufacture of alternating current rectifiers of the selenium type

Publications (1)

Publication Number Publication Date
GB554894A true GB554894A (en) 1943-07-23

Family

ID=9711963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB87242A Expired GB554894A (en) 1942-01-21 1942-01-21 Improvements relating to the manufacture of alternating current rectifiers of the selenium type

Country Status (3)

Country Link
US (1) US2378513A (en)
FR (1) FR932625A (en)
GB (1) GB554894A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL70486C (en) * 1945-12-29
US2568780A (en) * 1947-03-01 1951-09-25 Standard Telephones Cables Ltd Rectifier manufacturing process and products obtained thereby
US2858239A (en) * 1956-03-13 1958-10-28 Siemens Ag Method for producing selenium rectifiers
US3303344A (en) * 1963-07-16 1967-02-07 Westinghouse Electric Corp Photoconductive target electrode for a pickup tube and its method of fabrication

Also Published As

Publication number Publication date
FR932625A (en) 1948-03-26
US2378513A (en) 1945-06-19

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