GB1555762A - Method of cleaning surfaces - Google Patents

Method of cleaning surfaces

Info

Publication number
GB1555762A
GB1555762A GB3387875A GB3387875A GB1555762A GB 1555762 A GB1555762 A GB 1555762A GB 3387875 A GB3387875 A GB 3387875A GB 3387875 A GB3387875 A GB 3387875A GB 1555762 A GB1555762 A GB 1555762A
Authority
GB
United Kingdom
Prior art keywords
cleaning surfaces
cleaning
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
GB3387875A
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB3387875A priority Critical patent/GB1555762A/en
Priority to DE19762634993 priority patent/DE2634993A1/en
Priority to CA258,897A priority patent/CA1071075A/en
Priority to JP9593976A priority patent/JPS5242493A/en
Priority to FR7624771A priority patent/FR2321189A1/en
Publication of GB1555762A publication Critical patent/GB1555762A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
GB3387875A 1975-08-14 1975-08-14 Method of cleaning surfaces Expired GB1555762A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3387875A GB1555762A (en) 1975-08-14 1975-08-14 Method of cleaning surfaces
DE19762634993 DE2634993A1 (en) 1975-08-14 1976-08-04 METHOD FOR SURFACE CLEANING OF SUBSTRATES MADE OF III-V COMPOUNDS
CA258,897A CA1071075A (en) 1975-08-14 1976-08-11 Method of cleaning surfaces
JP9593976A JPS5242493A (en) 1975-08-14 1976-08-11 Method of creaning surface of 335 compound
FR7624771A FR2321189A1 (en) 1975-08-14 1976-08-13 PROCESS FOR CLEANING SURFACES AND PHOTOCATHODE OBTAINED BY THE PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3387875A GB1555762A (en) 1975-08-14 1975-08-14 Method of cleaning surfaces

Publications (1)

Publication Number Publication Date
GB1555762A true GB1555762A (en) 1979-11-14

Family

ID=10358642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3387875A Expired GB1555762A (en) 1975-08-14 1975-08-14 Method of cleaning surfaces

Country Status (5)

Country Link
JP (1) JPS5242493A (en)
CA (1) CA1071075A (en)
DE (1) DE2634993A1 (en)
FR (1) FR2321189A1 (en)
GB (1) GB1555762A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238105B (en) * 1963-07-17 1967-04-06 Siemens Ag Process for the production of pn junctions in silicon
US3669735A (en) * 1970-09-04 1972-06-13 Rca Corp Method for activating a semiconductor electron emitter
US3712700A (en) * 1971-01-18 1973-01-23 Rca Corp Method of making an electron emitter device

Also Published As

Publication number Publication date
CA1071075A (en) 1980-02-05
FR2321189B1 (en) 1979-05-25
DE2634993A1 (en) 1977-02-24
FR2321189A1 (en) 1977-03-11
JPS5242493A (en) 1977-04-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee