GB615616A - Improvements in and relating to selenium rectifiers - Google Patents

Improvements in and relating to selenium rectifiers

Info

Publication number
GB615616A
GB615616A GB1564144A GB1564144A GB615616A GB 615616 A GB615616 A GB 615616A GB 1564144 A GB1564144 A GB 1564144A GB 1564144 A GB1564144 A GB 1564144A GB 615616 A GB615616 A GB 615616A
Authority
GB
United Kingdom
Prior art keywords
iodine
per cent
proportions
added
elementary
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
GB1564144A
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.)
ALFRED MAURICIO MONATH
Original Assignee
ALFRED MAURICIO MONATH
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 ALFRED MAURICIO MONATH filed Critical ALFRED MAURICIO MONATH
Priority to GB1564144A priority Critical patent/GB615616A/en
Publication of GB615616A publication Critical patent/GB615616A/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
    • H01L21/10Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination

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)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Abstract

615,616. Asymmetrically-conducting resistances. MONATH, A. M. Aug. 16, 1944, No. 15641. [Class 37] A process of manufacturing selenium rectifiers comprises mixing iodine, in its elementary form or as a heat decomposable compound, in proportions of 0.05 to 0.2 per cent of elementary iodine, and applying high pressure of not less than 50 lbs. per sq. in. during the first part of an annealing process at about 100‹ to 150‹ C., whereby the rectification ratio of the element, after annealing and before the application of the counter electrode, is substantially increased by an electrical forming process. The baseplate used may be of nickel-coated iron. The iodine may be added in the form of iodine pentoxide in proportions of 0.15 to 0.25 per cent. In a modification, iodine within the range of 0.05 to 0.13 per cent is added, mixed with an equal quantity of selenium dioxide. Specification 472,961 is referred to. Reference has been directed by the Comptroller to Speciftcation 563,338.
GB1564144A 1944-08-16 1944-08-16 Improvements in and relating to selenium rectifiers Expired GB615616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1564144A GB615616A (en) 1944-08-16 1944-08-16 Improvements in and relating to selenium rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1564144A GB615616A (en) 1944-08-16 1944-08-16 Improvements in and relating to selenium rectifiers

Publications (1)

Publication Number Publication Date
GB615616A true GB615616A (en) 1949-01-10

Family

ID=10062802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1564144A Expired GB615616A (en) 1944-08-16 1944-08-16 Improvements in and relating to selenium rectifiers

Country Status (1)

Country Link
GB (1) GB615616A (en)

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