GB676809A - Improvements relating to dry surface contact rectifiers - Google Patents

Improvements relating to dry surface contact rectifiers

Info

Publication number
GB676809A
GB676809A GB761/50A GB76150A GB676809A GB 676809 A GB676809 A GB 676809A GB 761/50 A GB761/50 A GB 761/50A GB 76150 A GB76150 A GB 76150A GB 676809 A GB676809 A GB 676809A
Authority
GB
United Kingdom
Prior art keywords
surface contact
dry surface
improvements relating
contact rectifiers
thallium
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
GB761/50A
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 GB761/50A priority Critical patent/GB676809A/en
Publication of GB676809A publication Critical patent/GB676809A/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

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)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

676,809. Dry surface contact rectifiers. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and JENKINS, A. Dec. 6, 1950 [Jan. 11, 1950], No. 761/50. Class 37. The counter-electrode in a titanium dioxide rectifier is composed wholly or mainly of thallium. The Specification recognizes that it is known to use molybdenum and indium. A wafer of prepared TiO 2 is immersed in nitric acid and then washed in tap water. One surface has then applied to it, for example by cathodic deposition or mechanical pressure, a counterelectrode composed wholly or mainly of thallium.
GB761/50A 1950-01-11 1950-01-11 Improvements relating to dry surface contact rectifiers Expired GB676809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB761/50A GB676809A (en) 1950-01-11 1950-01-11 Improvements relating to dry surface contact rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB761/50A GB676809A (en) 1950-01-11 1950-01-11 Improvements relating to dry surface contact rectifiers

Publications (1)

Publication Number Publication Date
GB676809A true GB676809A (en) 1952-08-06

Family

ID=9710056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB761/50A Expired GB676809A (en) 1950-01-11 1950-01-11 Improvements relating to dry surface contact rectifiers

Country Status (1)

Country Link
GB (1) GB676809A (en)

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