Title:
ELECTRON SOURCE, METHOD FOR MANUFACTURING SAME, EMITTER, AND DEVICE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2021/215330
Kind Code:
A1
Abstract:
An electron source according to the present disclosure comprises: a columnar part that is made of a first material having electron emission characteristics; and a cylindrical part that is disposed to surround the columnar part and is made of a second material having a larger work function than the first material, wherein the cylindrical part extends from one end surface toward the other end surface and has a hole having a substantially circular cross-sectional shape, and the columnar part has a substantially triangular or substantially quadrangular cross-sectional shape and is fixed to the cylindrical part in a state of abutting on the inner surface of the hole.
More Like This:
| JPH01265437 | ELECTRON BEAM APPARATUS |
| WO/2022/064848 | GUARD ELECTRODE AND FIELD EMISSION DEVICE |
Inventors:
TSUKADA DAI (JP)
CHATANI HIROMITSU (JP)
ISHIKAWA DAISUKE (JP)
CHATANI HIROMITSU (JP)
ISHIKAWA DAISUKE (JP)
Application Number:
PCT/JP2021/015465
Publication Date:
October 28, 2021
Filing Date:
April 14, 2021
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
H01J37/06; H01J1/16; H01J9/04
Foreign References:
| JP5525104B2 | 2014-06-18 | |||
| JPS6332846A | 1988-02-12 | |||
| JP2012069364A | 2012-04-05 | |||
| JP5525104B2 | 2014-06-18 |
Other References:
See also references of EP 4131327A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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