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ES444114A1 - Etching apertures in metal foils - Google Patents

Etching apertures in metal foils

Info

Publication number
ES444114A1
ES444114A1 ES444114A ES444114A ES444114A1 ES 444114 A1 ES444114 A1 ES 444114A1 ES 444114 A ES444114 A ES 444114A ES 444114 A ES444114 A ES 444114A ES 444114 A1 ES444114 A1 ES 444114A1
Authority
ES
Spain
Prior art keywords
sheet
covered
openings
etching
cavities
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
ES444114A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES444114A1 publication Critical patent/ES444114A1/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
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)

Abstract

A method of forming openings by etching on a thin sheet of metal, in which method each side of the sheet is covered with an attack agent resistant layer, having a desired pattern of openings, is covered by a first of the two sides of the sheet with a continuous coating layer that is also resistant to the etching agent, then said sheet is treated with a chemical etching agent to form cavities in the second side of the sheet that is not covered with said layer of coating, then this is removed by means of a solvent, after which the sheet is treated with an etching agent to form cavities on the first side of the sheet, such that the cavities on both sides form continuous openings in the sheet, characterized by the fact that the coating layer consists of a waxy hydrocarbon and the solvent consists of perchlorethylene. (Machine-translation by Google Translate, not legally binding)
ES444114A 1975-01-09 1976-01-07 Etching apertures in metal foils Expired ES444114A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7500247A NL7500247A (en) 1975-01-09 1975-01-09 METHOD OF ETCHING HOLES IN A THIN METAL BAND.

Publications (1)

Publication Number Publication Date
ES444114A1 true ES444114A1 (en) 1977-04-16

Family

ID=19822960

Family Applications (1)

Application Number Title Priority Date Filing Date
ES444114A Expired ES444114A1 (en) 1975-01-09 1976-01-07 Etching apertures in metal foils

Country Status (10)

Country Link
JP (1) JPS5536268B2 (en)
AU (1) AU503706B2 (en)
BE (1) BE837377A (en)
BR (1) BR7600036A (en)
CA (1) CA1054905A (en)
ES (1) ES444114A1 (en)
FR (1) FR2297258A1 (en)
GB (1) GB1480323A (en)
IT (1) IT1055737B (en)
NL (1) NL7500247A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139676A (en) * 1980-04-02 1981-10-31 Toshiba Corp Method and apparatus for etching metal sheet
JPS6023515A (en) * 1983-07-18 1985-02-06 Nitto Kasen Kogyo Kk Closing device for sidewise-opening gate
US5348825A (en) * 1991-07-02 1994-09-20 Dai Nippon Printing Co., Ltd. Method for manufacturing shadow mask and shadow mask manufactured by said method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750524A (en) * 1951-11-15 1956-06-12 Mergenthaler Linotype Gmbh Perforate mask for multicolor television apparatus and method of producting same
US3679500A (en) * 1970-08-07 1972-07-25 Dainippon Screen Mfg Method for forming perforations in metal sheets by etching

Also Published As

Publication number Publication date
GB1480323A (en) 1977-07-20
AU503706B2 (en) 1979-09-13
IT1055737B (en) 1982-01-11
FR2297258B1 (en) 1980-03-21
NL7500247A (en) 1976-07-13
FR2297258A1 (en) 1976-08-06
BR7600036A (en) 1976-08-03
JPS5193739A (en) 1976-08-17
AU1001576A (en) 1977-07-14
DE2558335A1 (en) 1976-07-15
BE837377A (en) 1976-07-07
DE2558335B2 (en) 1976-12-23
JPS5536268B2 (en) 1980-09-19
CA1054905A (en) 1979-05-22

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