KR970023606A - Manufacturing method of cathode for electron tube - Google Patents
Manufacturing method of cathode for electron tube Download PDFInfo
- Publication number
- KR970023606A KR970023606A KR1019950038233A KR19950038233A KR970023606A KR 970023606 A KR970023606 A KR 970023606A KR 1019950038233 A KR1019950038233 A KR 1019950038233A KR 19950038233 A KR19950038233 A KR 19950038233A KR 970023606 A KR970023606 A KR 970023606A
- Authority
- KR
- South Korea
- Prior art keywords
- cathode
- electron
- oxide
- electron tube
- emitting material
- Prior art date
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- Solid Thermionic Cathode (AREA)
Abstract
본 발명은 전자관용 음극의 제조 방법에 관한 것이다. 금속 기재, 전자방출 물질층, 슬리브 및 히이터를 포함하는 전자관용 음극의 제조 방법에 있어서, 산화바륨, 산화스트론튬 및 산화칼슘을 제조한 다음, 상기 각각의 산화물이 45-60:20-25:1-3의 몰비로 이루어진 타겟을 준비하는 단계 및 스퍼터링 공정을 통하여, 상기 타겟의 산화물을 금속 기재의 상부에 도포하는 단계를 통하여 상기 전자방출 물질층이 형성되는 방법에 의해 제조된 전자관용 음극은 매우 미세하고 균일한 전자방출 물질층을 갖기 때문에, 이로부터 방출되는 전자가 균일하므로 스크린의 해상도를 높일 수 있다.The present invention relates to a method for producing a cathode for an electron tube. A method for producing a cathode for an electron tube comprising a metal substrate, an electron emitting material layer, a sleeve, and a heater, wherein barium oxide, strontium oxide, and calcium oxide are prepared, and the respective oxides are 45-60: 20-25: 1. The cathode for an electron tube manufactured by the method of forming the electron-emitting material layer through the step of preparing a target having a molar ratio of -3 and applying an oxide of the target on top of a metal substrate through a sputtering process is very Since it has a fine and uniform layer of electron-emitting material, electrons emitted from it are uniform, so that the resolution of the screen can be increased.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 통상적인 전자관용 음극의 개략적인 단면도이다.1 is a schematic cross-sectional view of a conventional cathode for an electron tube.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950038233A KR970023606A (en) | 1995-10-30 | 1995-10-30 | Manufacturing method of cathode for electron tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950038233A KR970023606A (en) | 1995-10-30 | 1995-10-30 | Manufacturing method of cathode for electron tube |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970023606A true KR970023606A (en) | 1997-05-30 |
Family
ID=66584762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950038233A KR970023606A (en) | 1995-10-30 | 1995-10-30 | Manufacturing method of cathode for electron tube |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970023606A (en) |
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1995
- 1995-10-30 KR KR1019950038233A patent/KR970023606A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |