CA981505A - Etch-back process - Google Patents

Etch-back process

Info

Publication number
CA981505A
CA981505A CA157,442A CA157442A CA981505A CA 981505 A CA981505 A CA 981505A CA 157442 A CA157442 A CA 157442A CA 981505 A CA981505 A CA 981505A
Authority
CA
Canada
Prior art keywords
etch
back process
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
CA157,442A
Other versions
CA157442S (en
Inventor
Martin L. Lerner
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.)
Zenith Electronics LLC
Original Assignee
Zenith Radio Corp
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 Zenith Radio Corp filed Critical Zenith Radio Corp
Application granted granted Critical
Publication of CA981505A publication Critical patent/CA981505A/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
    • H01J9/144—Mask treatment related to the process of dot deposition during manufacture of luminescent screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)
CA157,442A 1972-04-14 1972-11-24 Etch-back process Expired CA981505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00243945A US3808071A (en) 1972-04-14 1972-04-14 Etch-back process

Publications (1)

Publication Number Publication Date
CA981505A true CA981505A (en) 1976-01-13

Family

ID=22920750

Family Applications (1)

Application Number Title Priority Date Filing Date
CA157,442A Expired CA981505A (en) 1972-04-14 1972-11-24 Etch-back process

Country Status (2)

Country Link
US (1) US3808071A (en)
CA (1) CA981505A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1464131A (en) * 1973-02-21 1977-02-09 Hitachi Ltd Manufacture of shadow masks
US4069085A (en) * 1973-07-16 1978-01-17 U.S. Philips Corporation Apparatus for forming apertures in a thin metal tape such as a shadow mask for a color television display tube
US4362595A (en) * 1980-05-19 1982-12-07 The Boeing Company Screen fabrication by hand chemical blanking
US5518131A (en) * 1994-07-07 1996-05-21 International Business Machines Corporation Etching molydbenum with ferric sulfate and ferric ammonium sulfate
US6103096A (en) * 1997-11-12 2000-08-15 International Business Machines Corporation Apparatus and method for the electrochemical etching of a wafer
WO2003066277A1 (en) * 2002-02-07 2003-08-14 Browne & Co. Ltd. Non-symmetrical photo tooling and dual surface etching
JP7381370B2 (en) * 2020-03-05 2023-11-15 キオクシア株式会社 Semiconductor manufacturing equipment and semiconductor device manufacturing method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502519A (en) * 1966-12-08 1970-03-24 Eastman Kodak Co Process for thru-hole etching of a metal plastic
US3666579A (en) * 1970-06-15 1972-05-30 Zenith Radio Corp Etching electrodes

Also Published As

Publication number Publication date
US3808071A (en) 1974-04-30

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