GB494485A - Method of treating selenium electrode - Google Patents

Method of treating selenium electrode

Info

Publication number
GB494485A
GB494485A GB6847/38A GB684738A GB494485A GB 494485 A GB494485 A GB 494485A GB 6847/38 A GB6847/38 A GB 6847/38A GB 684738 A GB684738 A GB 684738A GB 494485 A GB494485 A GB 494485A
Authority
GB
United Kingdom
Prior art keywords
march
base plate
group
selenium
treating selenium
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
GB6847/38A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB494485A publication Critical patent/GB494485A/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
    • H01L21/08Preparation of the foundation plate

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)
  • Photoreceptors In Electrophotography (AREA)

Abstract

494,485. Asymmetrically conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. March 4, 1938, No. 6847. Convention date, March 4, 1937. [Class 37] [Also in Group XL] Relates to rectifiers and photo-electric devices in which one electrode comprises selenium. In order to remove volatile impurities and occluded gas from a base plate before the selenium is applied thereto, the base plate, (iron &c.) is heated for at least one hour in a vacuum or reducing gas. Specification 375,916, [Group XL], is referred to.
GB6847/38A 1937-03-04 1938-03-04 Method of treating selenium electrode Expired GB494485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP494485X 1937-03-04

Publications (1)

Publication Number Publication Date
GB494485A true GB494485A (en) 1938-10-26

Family

ID=12831398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6847/38A Expired GB494485A (en) 1937-03-04 1938-03-04 Method of treating selenium electrode

Country Status (2)

Country Link
FR (1) FR834589A (en)
GB (1) GB494485A (en)

Also Published As

Publication number Publication date
FR834589A (en) 1938-11-24

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