Title:
ELECTRON EMITTER
Document Type and Number:
WIPO Patent Application WO/2005/034164
Kind Code:
A1
Abstract:
Disclosed is an electron emitter having a structure for emitting electrons efficiently. The electron emitter comprises a substrate composed of an n-type diamond, and a sharp projection formed on the substrate. The projection is composed of a base portion on the substrate side and an electron-emitting portion which is formed on the base portion. Electrons are emitted from the tip of the electron-emitting portion. The base portion is composed of an n-type diamond, while the electron-emitting portion is composed of a p-type diamond. The length from the tip of the projection (the electron-emitting portion) to the interface between the base portion and the electron-emitting portion is preferably not more than 100 nm.
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Inventors:
Tatsumi, Natsuo c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Namba, Akihiko c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Nishibayashi, Yoshiki c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imai, Takahiro c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Namba, Akihiko c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Nishibayashi, Yoshiki c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imai, Takahiro c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Application Number:
PCT/JP2004/014106
Publication Date:
April 14, 2005
Filing Date:
September 27, 2004
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 54100, JP)
Tatsumi, Natsuo c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Namba, Akihiko c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Nishibayashi, Yoshiki c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imai, Takahiro c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Tatsumi, Natsuo c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Namba, Akihiko c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Nishibayashi, Yoshiki c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imai, Takahiro c/o Itami Works of Sumitomo Electric Industries Ltd. (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
International Classes:
H01J1/304; H01J1/308; H01J63/02; H01J1/30; H01J63/00; (IPC1-7): H01J1/304; H01J1/308
Attorney, Agent or Firm:
Hasegawa, Yoshiki (SOEI PATENT AND LAW FIRM, Ginza First Bldg. 10-6, Ginza 1-chome, Chuo-k, Tokyo 61, 10400, JP)
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