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 Title: |
US5698328:
Diamond thin film electron emitter
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Bunshah, Rointan F.; Playa del Rey, CA
Jou, Shyankay R.; Santa Monica, CA
Doerr, Hans J.; Westlake Village, CA
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| Assignee: |
The Regents of the University of California, Oakland, CA
other patents from UNIVERSITY OF CALIFORNIA, THE REGENTS OF (599425) (approx. 4,840)
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| Published / Filed: |
1997-12-16
/ 1995-04-21
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| Application Number: |
US1995000426223
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| IPC Code: |
Advanced:
C23C 14/06;
C23C 14/32;
C23C 14/34;
C23C 16/27;
H01J 1/304;
Core:
C23C 16/26;
more...
IPC-7:
C01B 31/06;
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| ECLA Code: |
C23C14/06B2; C23C14/32; C23C14/34; C23C16/27K2B; H01J1/304B; T01J201/304D4B;
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| U.S. Class: |
Current:
428/408;
423/446;
427/577;
438/020;
438/105;
Original:
428/408;
423/446;
156/DIG.68;
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| Field of Search: |
428/408,704
423/446
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| Priority Number: |
| 1995-04-21 |
US1995000426223 |
| 1994-04-06 |
US1994000223693 |
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| Abstract: |
Doped and undoped polycrystalline and noncrystalline diamond films produced by plasma enhanced chemical transport emit electrons into a vacuum in response to an applied electrical field. The field required to create emission is less than 20 V/ mu m for doped polycrystalline films, can be in the range of 5 to 8 volts/ mu m for undoped nanocrystalline films and may be 3 volts/ mu m or less for doped nanocrystalline films. These materials exhibit emission properties which are continuous across the whole surface of the film.
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| Attorney, Agent or Firm: |
Ram, Michael J. ;
Kleinberg, Marvin H. ;
Lerner, Marshall A. ;
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| Primary / Asst. Examiners: |
Turner, Archene;
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Foreign References: |
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| Other Abstract Info: |
CHEMABS 124(02)019717Q
CHEMABS 128(07)083321R
CHEMABS 125(26)345343K
CHEMABS 128(07)083321R
DERABS C1995-366406
DERABS C1996-485965
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| Other References: |
Wang, C. et al, "Cold Field Emission From CVD Diamond Films Observed in Emissionn Electron Microscopy," Electronics Letters, vol. 27, Nr. 16, pp. 1459-1461, (1 Aug. 1991).
(3 pages)
Cited by 15 patents
[ISI abstract]
Kumar, N. et al., "6-1: Development of Nano-Crystalline Diamond-Based Field-Emission Displays,", SID International Symposium Digest of Technical Papers, San Jose, vol. 25, pp. 43-46, (14 Jun. 1994).
Patent Abstracts of Japan, vol. 95, No. 005 & JP,A,07 130981 (Canon Inc.), 19 May 1995.
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