发明授权
- 专利标题: Cathode having a reservoir and method of manufacturing the same
- 专利标题(中): 具有储存器的阴极及其制造方法
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申请号: US679727申请日: 1996-07-12
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公开(公告)号: US5838096A公开(公告)日: 1998-11-17
- 发明人: Hiroyuki Shinada , Satoru Fukuhara , Katsuhiro Kuroda
- 申请人: Hiroyuki Shinada , Satoru Fukuhara , Katsuhiro Kuroda
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX7-179802 19950717
- 主分类号: H01J37/06
- IPC分类号: H01J37/06 ; H01J1/15 ; H01J1/304
摘要:
A cathode includes a hairpin type filament made of a refractory metal such as W, Mo or Re; a single crystal needle, made of a refractory metal such as W, Mo or Re joined to the filament; and a reservoir formed by applying a slurry of a powder of a metal or metal compound and an organic solvent containing nitrocellulose in the vicinity of a junction between the single crystal needle and the filament. The powder for a reservoir is made of a metal lower than the single crystal needle in a work function or electron affinity, such as Ti, Zr, Hf, Y, Th, Sc or Se, or a compound thereof.
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