FR67184E - Improvements to dry straighteners - Google Patents

Improvements to dry straighteners

Info

Publication number
FR67184E
FR67184E FR67184DA FR67184E FR 67184 E FR67184 E FR 67184E FR 67184D A FR67184D A FR 67184DA FR 67184 E FR67184 E FR 67184E
Authority
FR
France
Prior art keywords
straighteners
dry
dry straighteners
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
Other languages
French (fr)
Inventor
Hermann K J Strosche
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB3121649A external-priority patent/GB683817A/en
Priority claimed from GB25094/51A external-priority patent/GB702620A/en
Priority claimed from DES35730A external-priority patent/DE975679C/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR67184E publication Critical patent/FR67184E/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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. 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
    • H01L21/145—Ageing
    • 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
    • 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. 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
    • H01L21/12—Application of an electrode to the exposed surface of the selenium or tellurium after the selenium or tellurium has been applied to 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. 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
FR67184D 1949-12-05 1954-10-08 Improvements to dry straighteners Expired FR67184E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3121649A GB683817A (en) 1949-12-05 1949-12-05 Improvements in or relating to dry contact rectifiers
GB25094/51A GB702620A (en) 1951-10-26 1951-10-26 Improvements in or relating to dry contact rectifiers
DES35730A DE975679C (en) 1953-10-02 1953-10-02 Process for the manufacture of selenium rectifiers

Publications (1)

Publication Number Publication Date
FR67184E true FR67184E (en) 1957-11-25

Family

ID=27212568

Family Applications (2)

Application Number Title Priority Date Filing Date
FR66848D Expired FR66848E (en) 1949-12-05 1954-10-01 Improvements to dry straighteners
FR67184D Expired FR67184E (en) 1949-12-05 1954-10-08 Improvements to dry straighteners

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR66848D Expired FR66848E (en) 1949-12-05 1954-10-01 Improvements to dry straighteners

Country Status (1)

Country Link
FR (2) FR66848E (en)

Also Published As

Publication number Publication date
FR66848E (en) 1957-09-10

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