KR920003365A - Impregnated Cathode Structure and Manufacturing Method Thereof - Google Patents
Impregnated Cathode Structure and Manufacturing Method Thereof Download PDFInfo
- Publication number
- KR920003365A KR920003365A KR1019900011209A KR900011209A KR920003365A KR 920003365 A KR920003365 A KR 920003365A KR 1019900011209 A KR1019900011209 A KR 1019900011209A KR 900011209 A KR900011209 A KR 900011209A KR 920003365 A KR920003365 A KR 920003365A
- Authority
- KR
- South Korea
- Prior art keywords
- porous tungsten
- electron
- emitting material
- porous
- tungsten
- Prior art date
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
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/28—Dispenser-type cathodes, e.g. L-cathode
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제3도는 본 발명에 따른 함침형 음극구조체의 단면도.3 is a cross-sectional view of an impregnated cathode structure according to the present invention.
제4도는 본 발명에 따른 함침형 음극구조체의 제조방법을 나타낸 것으로 (A)는 함침 준비상태이고, (B)는 함침 완료상태이다.4 shows a method of manufacturing an impregnated cathode structure according to the present invention, where (A) is an impregnation ready state and (B) is an impregnation complete state.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900011209A KR920009324B1 (en) | 1990-07-23 | 1990-07-23 | Impregnated cathode structure and method of the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019900011209A KR920009324B1 (en) | 1990-07-23 | 1990-07-23 | Impregnated cathode structure and method of the same |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920003365A true KR920003365A (en) | 1992-02-29 |
KR920009324B1 KR920009324B1 (en) | 1992-10-15 |
Family
ID=19301594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900011209A KR920009324B1 (en) | 1990-07-23 | 1990-07-23 | Impregnated cathode structure and method of the same |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR920009324B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100771560B1 (en) * | 2007-07-27 | 2007-10-30 | 주식회사 두성기술 | Semiconductor chip burn-in test device possible approval of high speed frequency |
-
1990
- 1990-07-23 KR KR1019900011209A patent/KR920009324B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100771560B1 (en) * | 2007-07-27 | 2007-10-30 | 주식회사 두성기술 | Semiconductor chip burn-in test device possible approval of high speed frequency |
Also Published As
Publication number | Publication date |
---|---|
KR920009324B1 (en) | 1992-10-15 |
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G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
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Payment date: 20000929 Year of fee payment: 9 |
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