DE3172964D1 - Process of forming graded aperture masks - Google Patents

Process of forming graded aperture masks

Info

Publication number
DE3172964D1
DE3172964D1 DE8181103942T DE3172964T DE3172964D1 DE 3172964 D1 DE3172964 D1 DE 3172964D1 DE 8181103942 T DE8181103942 T DE 8181103942T DE 3172964 T DE3172964 T DE 3172964T DE 3172964 D1 DE3172964 D1 DE 3172964D1
Authority
DE
Germany
Prior art keywords
aperture
opening
etchant resist
over
openings
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
DE8181103942T
Other languages
German (de)
English (en)
Inventor
Roland Thoms
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.)
Buckbee Mears Co
Original Assignee
Buckbee Mears Co
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 Buckbee Mears Co filed Critical Buckbee Mears Co
Application granted granted Critical
Publication of DE3172964D1 publication Critical patent/DE3172964D1/de
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
DE8181103942T 1980-06-19 1981-05-22 Process of forming graded aperture masks Expired DE3172964D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/161,062 US4303466A (en) 1980-06-19 1980-06-19 Process of forming graded aperture masks

Publications (1)

Publication Number Publication Date
DE3172964D1 true DE3172964D1 (en) 1986-01-02

Family

ID=22579654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181103942T Expired DE3172964D1 (en) 1980-06-19 1981-05-22 Process of forming graded aperture masks

Country Status (6)

Country Link
US (1) US4303466A (cg-RX-API-DMAC7.html)
EP (1) EP0042496B1 (cg-RX-API-DMAC7.html)
JP (1) JPS5730236A (cg-RX-API-DMAC7.html)
AT (1) ATE16658T1 (cg-RX-API-DMAC7.html)
CA (1) CA1136025A (cg-RX-API-DMAC7.html)
DE (1) DE3172964D1 (cg-RX-API-DMAC7.html)

Families Citing this family (14)

* 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
US4596629A (en) * 1980-05-12 1986-06-24 Bmc Industries, Inc. Television picture tubes
US4353948A (en) * 1980-05-12 1982-10-12 Buckbee-Mears Company Hole technology
JPS6070185A (ja) * 1983-09-26 1985-04-20 Toshiba Corp シヤドウマスクの製造方法
SU1461377A3 (ru) * 1984-05-25 1989-02-23 Рка Корпорейшн (Фирма) Цветной кинескоп
US4743795A (en) * 1984-07-13 1988-05-10 Bmc Industries, Inc. Multi-graded aperture masks
US4632726A (en) * 1984-07-13 1986-12-30 Bmc Industries, Inc. Multi-graded aperture mask method
US4859549A (en) * 1987-03-12 1989-08-22 Sony Corporation Method of forming a fluorescent screen for a color CRT
EP0476664B1 (en) * 1990-09-20 1995-07-05 Dainippon Screen Mfg. Co., Ltd. Method of forming small through-holes in thin metal plate
JP3282347B2 (ja) * 1993-09-07 2002-05-13 ソニー株式会社 エッチング法、色選別機構及びその作製方法、並びに、陰極線管
US5484074A (en) * 1994-05-03 1996-01-16 Bmc Industries, Inc. Method for manufacturing a shadow mask
JP3327246B2 (ja) * 1999-03-25 2002-09-24 富士ゼロックス株式会社 インクジェット記録ヘッド及びその製造方法
DK2516421T3 (en) 2009-12-23 2016-11-28 Bayer Ip Gmbh New process for the preparation of 4-aminobut-2-enoliden starting from 4-alkoxyfuran-2 (5H) -one or 4-arylalkoxyfuran-2- (5H) -one
CN112103403B (zh) * 2016-02-16 2023-09-05 Lg伊诺特有限公司 金属板、沉积用掩模及其制造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517921A (en) * 1968-05-21 1970-06-30 Pitney Bowes Inc Combined copy paper pre-feed and timing mechanism for copying machines
US3652895A (en) * 1969-05-23 1972-03-28 Tokyo Shibaura Electric Co Shadow-mask having graduated rectangular apertures
US3679500A (en) * 1970-08-07 1972-07-25 Dainippon Screen Mfg Method for forming perforations in metal sheets by etching
US3663997A (en) * 1970-09-30 1972-05-23 Rca Corp Method for making a kinescope comprising production and treatment of a temporary mask
JPS4828950A (cg-RX-API-DMAC7.html) * 1971-08-21 1973-04-17
JPS4838054A (cg-RX-API-DMAC7.html) * 1971-09-16 1973-06-05
US3788912A (en) * 1971-11-10 1974-01-29 Buckbee Mears Co System suitable for controlling etching without the aid of an etchant resistant
US3909656A (en) * 1974-05-02 1975-09-30 Zenith Radio Corp Layered, one-sided etched color selection electrode
JPS511511A (en) * 1974-06-26 1976-01-08 Matsushita Electric Industrial Co Ltd Denkikogakukokao jusuru jiki
US3971682A (en) * 1974-07-11 1976-07-27 Buckbee-Mears Company Etching process for accurately making small holes in thick materials
US3929532A (en) * 1974-07-17 1975-12-30 Rca Corp Method for etching apertured work piece
US4126510A (en) * 1977-10-06 1978-11-21 Rca Corporation Etching a succession of articles from a strip of sheet metal

Also Published As

Publication number Publication date
ATE16658T1 (de) 1985-12-15
EP0042496B1 (en) 1985-11-21
JPS6246940B2 (cg-RX-API-DMAC7.html) 1987-10-05
EP0042496A1 (en) 1981-12-30
US4303466A (en) 1981-12-01
JPS5730236A (en) 1982-02-18
CA1136025A (en) 1982-11-23

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Legal Events

Date Code Title Description
8380 Miscellaneous part iii

Free format text: DER PATENTINHABER LAUTET RICHTIG: BMC INDUSTRIES, INC., ST. PAUL, MINN. US

8364 No opposition during term of opposition