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 (JP)
NAMBA AKIHIKO (JP)
NISHIBAYASHI YOSHIKI (JP)
IMAI TAKAHIRO (JP)
NAMBA AKIHIKO (JP)
NISHIBAYASHI YOSHIKI (JP)
IMAI TAKAHIRO (JP)
Application Number:
PCT/JP2004/014106
Publication Date:
April 14, 2005
Filing Date:
September 27, 2004
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
TATSUMI NATSUO (JP)
NAMBA AKIHIKO (JP)
NISHIBAYASHI YOSHIKI (JP)
IMAI TAKAHIRO (JP)
TATSUMI NATSUO (JP)
NAMBA AKIHIKO (JP)
NISHIBAYASHI YOSHIKI (JP)
IMAI TAKAHIRO (JP)
International Classes:
H01J1/304; H01J1/308; H01J63/02; (IPC1-7): H01J1/304; H01J1/308
Foreign References:
| JPH1050205A | 1998-02-20 | |||
| JPH08321256A | 1996-12-03 | |||
| JPH0513342A | 1993-01-22 | |||
| JPH09320450A | 1997-12-12 | |||
| JPH0945215A | 1997-02-14 | |||
| JPH0935622A | 1997-02-07 | |||
| JPH11195372A | 1999-07-21 | |||
| JPH10241549A | 1998-09-11 | |||
| JP2002075171A | 2002-03-15 | |||
| EP0645793A2 | 1995-03-29 | |||
| US3581151A | 1971-05-25 | |||
| US5199918A | 1993-04-06 | |||
| EP1184885A1 | 2002-03-06 | |||
| US6132278A | 2000-10-17 | |||
| US5844252A | 1998-12-01 | |||
| US5410166A | 1995-04-25 |
Other References:
See also references of EP 1670016A4
JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY B, vol. 14, 1996, pages 2060
JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY B, vol. 14, 1996, pages 2060
Attorney, Agent or Firm:
Hasegawa, Yoshiki (Ginza First Bldg. 10-6, Ginza 1-chome, Chuo-k, Tokyo 61, JP)
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