ES8402459A1 - Method of forming a cathode structure. - Google Patents

Method of forming a cathode structure.

Info

Publication number
ES8402459A1
ES8402459A1 ES518317A ES518317A ES8402459A1 ES 8402459 A1 ES8402459 A1 ES 8402459A1 ES 518317 A ES518317 A ES 518317A ES 518317 A ES518317 A ES 518317A ES 8402459 A1 ES8402459 A1 ES 8402459A1
Authority
ES
Spain
Prior art keywords
photoresist
areas
metallization
layer
apertures
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
ES518317A
Other languages
Spanish (es)
Other versions
ES518317A0 (en
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of ES518317A0 publication Critical patent/ES518317A0/en
Publication of ES8402459A1 publication Critical patent/ES8402459A1/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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

Positive photoresist technology is used on a sapphire substrate (7.1) carrying a patterned metallization layer (11.1) to expose areas (41.3, 41.4) of metallization within delineated apertures in the photoresist. Into these apertures needle-shaped triple carbonate particles (50.3, 50.4) are deposited cataphoretically normal to the metallization areas to form electron emissive areas. A further layer of photoresist is deposited to cover these areas and the first layer of photoresist and exposed through oversize mask so as to leave photoresist as encapsulation material (48.13, 48.14) covering the top and sides of the electron emissive material. The encapsulated planar cathode structure is inserted into a multibeam cathode ray tube and heated so as to remove the encapsulation material.
ES518317A 1981-06-30 1982-12-17 Method of forming a cathode structure. Expired ES8402459A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27928181A 1981-06-30 1981-06-30

Publications (2)

Publication Number Publication Date
ES518317A0 ES518317A0 (en) 1984-01-16
ES8402459A1 true ES8402459A1 (en) 1984-01-16

Family

ID=23068326

Family Applications (2)

Application Number Title Priority Date Filing Date
ES513515A Granted ES513515A0 (en) 1981-06-30 1982-06-28 METHOD FOR FORMING A CATODE STRUCTURE USABLE PARTICULARLY IN CATHODIC RAY TUBES.
ES518317A Expired ES8402459A1 (en) 1981-06-30 1982-12-17 Method of forming a cathode structure.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES513515A Granted ES513515A0 (en) 1981-06-30 1982-06-28 METHOD FOR FORMING A CATODE STRUCTURE USABLE PARTICULARLY IN CATHODIC RAY TUBES.

Country Status (6)

Country Link
EP (1) EP0068111B1 (en)
JP (1) JPS587740A (en)
BR (1) BR8203186A (en)
DE (1) DE3267536D1 (en)
ES (2) ES513515A0 (en)
ZA (1) ZA823101B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224847A (en) * 1983-12-21 1985-11-09 東洋紡績株式会社 Elastic warp knitted fabric and its production
JPS6143288U (en) * 1984-08-25 1986-03-20 マツモト・テキスタイル株式会社 Stretchable warp knitted fabric
JPS61119757A (en) * 1984-11-16 1986-06-06 東洋紡績株式会社 Elastic knitted cloth
JPH0257988U (en) * 1988-10-24 1990-04-26
JP3556331B2 (en) * 1995-07-17 2004-08-18 株式会社日立製作所 Manufacturing method of electron source
US11205564B2 (en) 2017-05-23 2021-12-21 Modern Electron, Inc. Electrostatic grid device to reduce electron space charge
WO2020206445A1 (en) 2019-04-05 2020-10-08 Modern Electron, Inc Thermionic energy converter with thermal concentrating hot shell

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2156360B2 (en) * 1971-11-12 1978-04-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Brush cathode prodn. using etching of suitable material - involves homogeneous cathode whose surface is coated by photolacquer in pattern corresponding to brush needles required
GB1457105A (en) * 1973-06-01 1976-12-01 English Electric Valve Co Ltd Electron guns
US3978364A (en) * 1974-07-24 1976-08-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Integrated structure vacuum tube
JPS5436828B2 (en) * 1974-08-16 1979-11-12
JPS51147171A (en) * 1975-06-11 1976-12-17 Sony Corp Flat surface multilayer cathode
JPS6055942B2 (en) * 1975-08-25 1985-12-07 ソニー株式会社 Cathode manufacturing method
US4121130A (en) * 1976-10-29 1978-10-17 Rca Corporation Cathode structure and method of operating the same
US4138622A (en) * 1977-08-04 1979-02-06 The United States Of America As Represented By The United States Department Of Energy High temperature electronic gain device
NL7810808A (en) * 1978-10-31 1980-05-02 Philips Nv DEVICE AND METHOD FOR MANUFACTURING CATHODS
GB2043991B (en) * 1978-11-30 1983-05-11 Varian Associates Method of fabricating a dispenser cathode
US4361781A (en) * 1980-05-12 1982-11-30 International Business Machines Corporation Multiple electron beam cathode ray tube

Also Published As

Publication number Publication date
BR8203186A (en) 1983-05-17
ES518317A0 (en) 1984-01-16
JPS587740A (en) 1983-01-17
JPH0363169B2 (en) 1991-09-30
ES8308153A1 (en) 1983-08-01
ES513515A0 (en) 1983-08-01
DE3267536D1 (en) 1986-01-02
ZA823101B (en) 1983-03-30
EP0068111A3 (en) 1983-05-11
EP0068111A2 (en) 1983-01-05
EP0068111B1 (en) 1985-11-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010402