GB794516A - Selenium rectifier - Google Patents

Selenium rectifier

Info

Publication number
GB794516A
GB794516A GB17189/55A GB1718955A GB794516A GB 794516 A GB794516 A GB 794516A GB 17189/55 A GB17189/55 A GB 17189/55A GB 1718955 A GB1718955 A GB 1718955A GB 794516 A GB794516 A GB 794516A
Authority
GB
United Kingdom
Prior art keywords
glucose
layer
solution
counter electrode
per cent
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
GB17189/55A
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 GB17189/55A priority Critical patent/GB794516A/en
Priority to US589879A priority patent/US2802973A/en
Priority to FR1154700D priority patent/FR1154700A/en
Publication of GB794516A publication Critical patent/GB794516A/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
    • H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
    • H01L21/108—Provision of discrete insulating layers, i.e. non-genetic barrier layers

Abstract

794,516. Selenium rectifiers. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and FRENCH, E. L. May 4, 1956 [june 15, 1955], No. 17189/55. Class 37. In a selenium rectifier an artificial barrier layer consisting of one or more saccharides is provided between the Se and the counter electrode. A saccharide is defined as a watersoluble monosaccharide or a water-soluble substance which on hydrolysis produces one or more monosaccharides. Examples given are D-glucose, galactose, xylose, fructose, lactose, sucrose, raffinose, maltose, starch and inulin. Such a layer, e.g. of D-glucose, may be provided by immersing a base-plate coated with crystalline Se with its plane vertical for 1 minute in a 1 per cent solution in water of D-glucose maintained at 80‹ C. and then withdrawing slowly while subjecting the plate to radiant heat. To ensure uniformity of the layer a wetting agent for Se, e.g. about 0.02 per cent by weight gelatine is mixed with the solution. The layer thickness is varied by altering the solution concentration. A counter electrode is applied to the dried barrier layer and the device electroformed.
GB17189/55A 1955-06-15 1955-06-15 Selenium rectifier Expired GB794516A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB17189/55A GB794516A (en) 1955-06-15 1955-06-15 Selenium rectifier
US589879A US2802973A (en) 1955-06-15 1956-06-07 Selenium rectifiers
FR1154700D FR1154700A (en) 1955-06-15 1956-06-11 Rectifier with non-genetic stop layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17189/55A GB794516A (en) 1955-06-15 1955-06-15 Selenium rectifier

Publications (1)

Publication Number Publication Date
GB794516A true GB794516A (en) 1958-05-07

Family

ID=10090818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17189/55A Expired GB794516A (en) 1955-06-15 1955-06-15 Selenium rectifier

Country Status (3)

Country Link
US (1) US2802973A (en)
FR (1) FR1154700A (en)
GB (1) GB794516A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB795475A (en) * 1955-06-15 1958-05-21 Westinghouse Brake & Signal Selenium rectifier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481739A (en) * 1946-02-23 1949-09-13 Radio Receptor Company Inc Rectifiers

Also Published As

Publication number Publication date
FR1154700A (en) 1958-04-15
US2802973A (en) 1957-08-13

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