Invention Grant
US5777427A Electron emission cathode having a semiconductor film; a device
including the cathode; and a method for making the cathode
失效
具有半导体膜的电子发射阴极; 包括阴极的装置; 以及制造阴极的方法
- Patent Title: Electron emission cathode having a semiconductor film; a device including the cathode; and a method for making the cathode
- Patent Title (中): 具有半导体膜的电子发射阴极; 包括阴极的装置; 以及制造阴极的方法
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Application No.: US539699Application Date: 1995-10-05
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Publication No.: US5777427APublication Date: 1998-07-07
- Inventor: Hiroyoshi Tanaka , Koichi Kotera , Masao Uchida
- Applicant: Hiroyoshi Tanaka , Koichi Kotera , Masao Uchida
- Applicant Address: JPX Osaka
- Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee Address: JPX Osaka
- Priority: JPX6-241221 19941005; JPX7-056016 19950315; JPX7-060755 19950320
- Main IPC: H01J1/304
- IPC: H01J1/304 ; H01J9/02 ; H01J1/02
Abstract:
An electron emission cathode includes: an n-type semiconductor film including diamond particles partially projecting from a surface of the n-type semiconductor film; and an anode opposing the n-type semiconductor film with a vacuum interposed therebetween. Electrons are emitted by applying a voltage between the anode and the n-type semiconductor film.
Public/Granted literature
- US4021715A Motor drive for the displacement of a section of an X-ray examination apparatus Public/Granted day:1977-05-03
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