BE435957A - - Google Patents

Info

Publication number
BE435957A
BE435957A BE435957DA BE435957A BE 435957 A BE435957 A BE 435957A BE 435957D A BE435957D A BE 435957DA BE 435957 A BE435957 A BE 435957A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE435957A publication Critical patent/BE435957A/xx

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
    • H01L21/08—Preparation of the foundation plate
    • 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
    • H01L21/14—Treatment of the complete device, e.g. by electroforming to form a barrier
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S438/00—Semiconductor device manufacturing: process
    • Y10S438/964—Roughened surface

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Electroplating Methods And Accessories (AREA)
BE435957D 1938-08-16 1939-08-12 BE435957A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES15120D DE922896C (de) 1938-08-16 1938-08-16 Verfahren zur Herstellung eines Selengleichrichters

Publications (1)

Publication Number Publication Date
BE435957A true BE435957A (fr) 1939-09-30

Family

ID=7474837

Family Applications (1)

Application Number Title Priority Date Filing Date
BE435957D BE435957A (fr) 1938-08-16 1939-08-12

Country Status (5)

Country Link
US (1) US2221614A (fr)
BE (1) BE435957A (fr)
CH (1) CH214717A (fr)
DE (1) DE922896C (fr)
FR (1) FR858998A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE481454A (fr) * 1941-07-12
US2607832A (en) * 1947-07-19 1952-08-19 Vickers Inc Devices which have selenium as constituent parts thereof
FR1067783A (fr) * 1951-12-18 1954-06-18 Int Standard Electric Corp Surface redresseuse comportant du silicium ou du germanium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2035022A (en) * 1931-03-28 1936-03-24 Sprague Specialties Co Electrolytic device
GB433818A (en) * 1933-05-31 1935-08-21 Joseph Barry Brennan Improvements in and relating to electrolytic devices
FR774344A (fr) * 1934-03-15 1934-12-05 Suddeutsche App Fabrik G M B H Perfectionnements aux redresseurs avec métal redresseur disposé entre deux électrodes

Also Published As

Publication number Publication date
DE922896C (de) 1955-01-27
US2221614A (en) 1940-11-12
FR858998A (fr) 1940-12-07
CH214717A (de) 1941-05-15

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