GB831303A - Improvements in or relating to refining processes for semi-conductor and other materials - Google Patents

Improvements in or relating to refining processes for semi-conductor and other materials

Info

Publication number
GB831303A
GB831303A GB31896/55A GB3189655A GB831303A GB 831303 A GB831303 A GB 831303A GB 31896/55 A GB31896/55 A GB 31896/55A GB 3189655 A GB3189655 A GB 3189655A GB 831303 A GB831303 A GB 831303A
Authority
GB
United Kingdom
Prior art keywords
rod
zone
conductor
relating
semi
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
GB31896/55A
Inventor
Henley Frank Sterling
George King
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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
Priority claimed from DES29621A external-priority patent/DE1031893B/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB831303A publication Critical patent/GB831303A/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
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/06—Single-crystal growth by zone-melting; Refining by zone-melting the molten zone not extending over the whole cross-section
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Weting (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Silicon Compounds (AREA)

Abstract

A molten zone is caused to move along a rod e.g. of silicon or germanium, without the molten zone dividing the rod into separate solid portions, the zone traversing the rod in such manner that all portions of the rod are subjected to melting. A monocrystal may result. Preferably the zone moves in a helical path around the rod which may be heated by the passage of an electric current to just below its melting point additional heat being supplied by H.F. current. Reference has been directed by the Comptroller to Specifications 769,673 and 775,986.
GB31896/55A 1952-08-01 1955-11-08 Improvements in or relating to refining processes for semi-conductor and other materials Expired GB831303A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES29621A DE1031893B (en) 1952-08-01 1952-08-01 Process for the outer shaping of semiconductor arrangements, in particular for rectifier and amplifier purposes with semiconductors made of germanium or silicon
GB3142656A GB831304A (en) 1952-08-01 1956-10-16 Improvements in or relating to refining processes for semiconductor and other materials

Publications (1)

Publication Number Publication Date
GB831303A true GB831303A (en) 1960-03-30

Family

ID=32394886

Family Applications (2)

Application Number Title Priority Date Filing Date
GB19225/53A Expired GB721026A (en) 1952-08-01 1953-07-10 Process for external profiling of semiconductor devices
GB31896/55A Expired GB831303A (en) 1952-08-01 1955-11-08 Improvements in or relating to refining processes for semi-conductor and other materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB19225/53A Expired GB721026A (en) 1952-08-01 1953-07-10 Process for external profiling of semiconductor devices

Country Status (6)

Country Link
US (1) US2914397A (en)
BE (3) BE561652A (en)
CH (2) CH320916A (en)
FR (3) FR1081736A (en)
GB (2) GB721026A (en)
NL (2) NL96829C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977180C (en) * 1955-03-05 1965-06-24 Siemens Ag Process for electrolytic localized removal such as drilling and cutting up semiconducting crystalline material
GB918028A (en) * 1958-09-04 1963-02-13 Philips Electrical Ind Ltd Improvements in or relating to methods of providing alloyed regions on semi-conductive bodies
DE1104617B (en) * 1959-06-18 1961-04-13 Siemens Ag Process for the electrolytic etching of a semiconductor arrangement with a semiconductor body made of essentially single-crystal semiconductor material
US3233977A (en) * 1961-05-31 1966-02-08 Westinghouse Electric Corp Furnace with means for adjusting a crucible in growing crystals
DE1243641B (en) * 1962-12-12 1967-07-06 Siemens Ag Process for the production of semiconductor rods by drawing from the melt
US4039283A (en) * 1973-04-18 1977-08-02 Siemens Aktiengesellschaft Apparatus for producing a controlled radial path of resistance in a semiconductor monocrystalline rod

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2125173A (en) * 1932-07-29 1938-07-26 Union Carbide & Carbon Corp Apparatus for treating the defective surface metal of billets or the like
US2477411A (en) * 1944-06-10 1949-07-26 Linde Air Prod Co Metal surface conditioning apparatus and process
BE510303A (en) * 1951-11-16
DE1061527B (en) * 1953-02-14 1959-07-16 Siemens Ag Process for zone-wise remelting of rods and other elongated workpieces

Also Published As

Publication number Publication date
FR72391E (en) 1960-03-31
BE521845A (en)
NL96829C (en)
US2914397A (en) 1959-11-24
NL180311B (en)
FR1081736A (en) 1954-12-22
FR71626E (en) 1960-01-13
BE552391A (en)
GB721026A (en) 1954-12-29
BE561652A (en)
CH320916A (en) 1957-04-15
CH360207A (en) 1962-02-15

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