GB544743A - Improvements relating to the manufacture of alternating current dry rectifiers - Google Patents

Improvements relating to the manufacture of alternating current dry rectifiers

Info

Publication number
GB544743A
GB544743A GB15630/40A GB1563040A GB544743A GB 544743 A GB544743 A GB 544743A GB 15630/40 A GB15630/40 A GB 15630/40A GB 1563040 A GB1563040 A GB 1563040A GB 544743 A GB544743 A GB 544743A
Authority
GB
United Kingdom
Prior art keywords
manufacture
alternating current
improvements relating
current dry
dry rectifiers
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
GB15630/40A
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
Priority to NL84010D priority Critical patent/NL84010C/xx
Application filed by Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB15630/40A priority patent/GB544743A/en
Priority to US435112A priority patent/US2296575A/en
Publication of GB544743A publication Critical patent/GB544743A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

544,743. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., ROWLEY, C. A., and JENKINS, A. Oct. 24, 1940, No. 15630. [Class 37] Elements of a dry-rectifier are punched from a large composite sheet comprising base 1 and applied coatings 2, 3 and the edges of the elements are then cut or ground to remove a strip of the coatings, preferably in bevel form to prevent risk of short-circuiting. Specification 529,792 is referred to.
GB15630/40A 1940-10-24 1940-10-24 Improvements relating to the manufacture of alternating current dry rectifiers Expired GB544743A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL84010D NL84010C (en) 1940-10-24
GB15630/40A GB544743A (en) 1940-10-24 1940-10-24 Improvements relating to the manufacture of alternating current dry rectifiers
US435112A US2296575A (en) 1940-10-24 1942-03-17 Manufacture of alternating current rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15630/40A GB544743A (en) 1940-10-24 1940-10-24 Improvements relating to the manufacture of alternating current dry rectifiers

Publications (1)

Publication Number Publication Date
GB544743A true GB544743A (en) 1942-04-27

Family

ID=10062604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15630/40A Expired GB544743A (en) 1940-10-24 1940-10-24 Improvements relating to the manufacture of alternating current dry rectifiers

Country Status (3)

Country Link
US (1) US2296575A (en)
GB (1) GB544743A (en)
NL (1) NL84010C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450020A (en) * 1942-12-03 1948-09-28 Int Standard Electric Corp Manufacture of rectifier disks
US2543678A (en) * 1948-10-13 1951-02-27 Radio Receptor Co Inc Method of producing rectifier elements
BE505850A (en) * 1950-09-18
US2743506A (en) * 1952-02-23 1956-05-01 Int Resistance Co Method of manufacturing rectifier cells
US3482303A (en) * 1966-11-07 1969-12-09 Texas Instruments Inc Method of manufacturing a solderclad metal composite
DE2048451A1 (en) * 1970-10-02 1972-04-06 Licentia Gmbh Process for manufacturing a solar cell

Also Published As

Publication number Publication date
US2296575A (en) 1942-09-22
NL84010C (en)

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