Title:
MANUFACTURE OF RADIATION MEMBER FOR ELECTRONIC PART
Document Type and Number:
Japanese Patent JP3531785
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To produce a radiation member for electronic parts which exhibits extremely high thermal conductivity and flexibility with a low boron nitride content by a method in which rubber green sheets containing boron nitride powder are molded, laminated, and vulcanized, and the laminate is cut in the lamination direction in a desired thickness.
SOLUTION: A radiation member for electronic parts is produced by a method in which an addition reaction type liquid silicone is mixed with boron nitride powder at room temperature into slurry, the slurry is extruded by an extruder of a piston-type or another to be molded provisionally into green sheets, which are laminated and cured by heating, and the laminate is cut from the lamination direction in a desired thickness. The laminate of the green sheets, after being cut in the lamination direction in a desired thickness, is vulcanized. The resulting radiation member is inserted between exothermic electronic parts or a circuit board on which the parts are mounted and a cooling device. It is also possible that the member, for example, is stuck to the cooling device in advance to be integrated and is supplied.
Inventors:
Sato, Mikitoshi
Sawa, Hiroaki
Ikeda, Kazuyoshi
Nishikawa, Masato
Sawa, Hiroaki
Ikeda, Kazuyoshi
Nishikawa, Masato
Application Number:
JP17711497A
Publication Date:
May 31, 2004
Filing Date:
July 02, 1997
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KK
International Classes:
B32B25/04; B29C35/02; H01L23/373; H05K7/20; B29K21/00; B29K105/16; B29K105/24; B29L9/00; (IPC1-7): B29C35/02; H01L23/373; H05K7/20