GB761795A - Improvements in or relating to the manufacture of semi-conductor devices - Google Patents

Improvements in or relating to the manufacture of semi-conductor devices

Info

Publication number
GB761795A
GB761795A GB691454A GB691454A GB761795A GB 761795 A GB761795 A GB 761795A GB 691454 A GB691454 A GB 691454A GB 691454 A GB691454 A GB 691454A GB 761795 A GB761795 A GB 761795A
Authority
GB
United Kingdom
Prior art keywords
relating
semi
manufacture
indium
conductor devices
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
GB691454A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB691454A priority Critical patent/GB761795A/en
Priority to FR1120431D priority patent/FR1120431A/en
Publication of GB761795A publication Critical patent/GB761795A/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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/18—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 elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
    • H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
    • H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
    • H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
    • H01L21/3063—Electrolytic etching

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)
  • Bipolar Transistors (AREA)

Abstract

An emitter electrode of indium is formed on the base of a pit etched electrolytically in one conductivity region of a germanium transistor (see Group XXXVI) by placing a little indium in the pit and heating the whole to 500 DEG C. in hydrogen to fuse the indium to the germanium. Specification 768,022 is referred to in the Provisional Specification.
GB691454A 1954-03-09 1954-03-09 Improvements in or relating to the manufacture of semi-conductor devices Expired GB761795A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB691454A GB761795A (en) 1954-03-09 1954-03-09 Improvements in or relating to the manufacture of semi-conductor devices
FR1120431D FR1120431A (en) 1954-03-09 1955-03-09 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB691454A GB761795A (en) 1954-03-09 1954-03-09 Improvements in or relating to the manufacture of semi-conductor devices

Publications (1)

Publication Number Publication Date
GB761795A true GB761795A (en) 1956-11-21

Family

ID=9823133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB691454A Expired GB761795A (en) 1954-03-09 1954-03-09 Improvements in or relating to the manufacture of semi-conductor devices

Country Status (2)

Country Link
FR (1) FR1120431A (en)
GB (1) GB761795A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192141A (en) * 1959-12-24 1965-06-29 Western Electric Co Simultaneous etching and monitoring of semiconductor bodies
US3196094A (en) * 1960-06-13 1965-07-20 Ibm Method of automatically etching an esaki diode
US3250693A (en) * 1960-05-18 1966-05-10 Sony Corp Method and apparatus for the manufacturing calibration of tunnel diodes by etching
US3352770A (en) * 1961-06-16 1967-11-14 Gen Electric Electrochemical machining of small diameter holes in high temperature superalloys
GB2000190A (en) * 1977-06-14 1979-01-04 Sony Corp Methods of electrolytically etching ferrite bodies and magnetic transducer heads including bodies so etched

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL216978A (en) * 1956-05-04
DE1158636B (en) * 1960-08-24 1963-12-05 Telefunken Patent Method for producing alloyed semiconductor diodes, in particular tunnel diodes, and device for carrying out the method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3192141A (en) * 1959-12-24 1965-06-29 Western Electric Co Simultaneous etching and monitoring of semiconductor bodies
US3250693A (en) * 1960-05-18 1966-05-10 Sony Corp Method and apparatus for the manufacturing calibration of tunnel diodes by etching
US3196094A (en) * 1960-06-13 1965-07-20 Ibm Method of automatically etching an esaki diode
US3352770A (en) * 1961-06-16 1967-11-14 Gen Electric Electrochemical machining of small diameter holes in high temperature superalloys
GB2000190A (en) * 1977-06-14 1979-01-04 Sony Corp Methods of electrolytically etching ferrite bodies and magnetic transducer heads including bodies so etched
GB2000190B (en) * 1977-06-14 1982-03-17 Sony Corp Methods of electrolytically etching ferrite bodies and magnetic transducer heads including bodies so etched

Also Published As

Publication number Publication date
FR1120431A (en) 1956-07-05

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