Title:
ELECTRON SOURCE, METHOD FOR MANUFACTURING SAME, AND DEVICE PROVIDED WITH ELECTRON SOURCE
Document Type and Number:
WIPO Patent Application WO/2022/138558
Kind Code:
A1
Abstract:
This method for manufacturing an electron source comprises: a step for putting, between a pair of welding electrodes, an object to be welded in which a chip of an electron emission material and a tungsten filament are superposed so as to be in direct contact with each other; and a step for welding the chip and the tungsten filament by passing an electric current while applying pressing force to the object to be welded by the pair of welding electrodes, and the thickness of the object to be welded falls within the range of 50-500 μm.
Inventors:
CHATANI HIROMITSU (JP)
Application Number:
PCT/JP2021/047021
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
H01J37/06; H01J1/148; H01J1/18; H01J9/02; H01J9/04
Foreign References:
| JPS5046477A | 1975-04-25 | |||
| JP2000246451A | 2000-09-12 | |||
| JP2008262794A | 2008-10-30 | |||
| JP2002358922A | 2002-12-13 | |||
| JPS647450A | 1989-01-11 | |||
| JPS647450A | 1989-01-11 | |||
| JPH055306B2 | 1993-01-22 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Download PDF: