JPS57148859A - Manufacture of shadow mask - Google Patents

Manufacture of shadow mask

Info

Publication number
JPS57148859A
JPS57148859A JP56033861A JP3386181A JPS57148859A JP S57148859 A JPS57148859 A JP S57148859A JP 56033861 A JP56033861 A JP 56033861A JP 3386181 A JP3386181 A JP 3386181A JP S57148859 A JPS57148859 A JP S57148859A
Authority
JP
Japan
Prior art keywords
film
photosensitive
solution
casein
electron beam
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.)
Pending
Application number
JP56033861A
Other languages
Japanese (ja)
Inventor
Koichiro Oka
Yutaka Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56033861A priority Critical patent/JPS57148859A/en
Priority to KR8201043A priority patent/KR860000433B1/en
Publication of JPS57148859A publication Critical patent/JPS57148859A/en
Pending 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Materials For Photolithography (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

PURPOSE:To reduce substantially oozing out of not-yet-exposed casein to enhance the quality by providing a film-hardening-treatment process after the development process and making alcohol substitution. CONSTITUTION:In a photosensitive solution application process, a photosensitive solution mainly comprising casein and ammonium bichromate is applied on the both main surfaces of a shadow mask substrate. In the first drying process at 100 deg.C for about 2.5sec, a photosensitive film having 4.5mum film thickness is formed. After being brought in contact with a specified negative plate, an exposure process is conducted. By spraying 45 deg.C hot water, a not-yet-exposed film part, that is, the photosensitive film part where an electron beam passing hole will be formed there, is removed in a development process. About 5% chromic anhydride solution or about 10% ammonium bichromate solution is applied in a film hardening process. After washing in a washing process, not-diluted alcohol is sprayed in an alcohol substitution process. Then, a second drying process, a burning process, and a corrosion process are successively applied to form an electron beam passing hole, under the same conditions as those for conventional process.
JP56033861A 1981-03-11 1981-03-11 Manufacture of shadow mask Pending JPS57148859A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56033861A JPS57148859A (en) 1981-03-11 1981-03-11 Manufacture of shadow mask
KR8201043A KR860000433B1 (en) 1981-03-11 1982-03-11 Manufacturing method of shadow mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56033861A JPS57148859A (en) 1981-03-11 1981-03-11 Manufacture of shadow mask

Publications (1)

Publication Number Publication Date
JPS57148859A true JPS57148859A (en) 1982-09-14

Family

ID=12398279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56033861A Pending JPS57148859A (en) 1981-03-11 1981-03-11 Manufacture of shadow mask

Country Status (2)

Country Link
JP (1) JPS57148859A (en)
KR (1) KR860000433B1 (en)

Also Published As

Publication number Publication date
KR860000433B1 (en) 1986-04-19
KR830009637A (en) 1983-12-22

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