Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Patent
1995-12-28
1997-07-08
Choi, Kathleen
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
428688, 428689, 428697, 428698, 428699, 4285395, 4289088, B32B 900
Patent
active
056459378
ABSTRACT:
A thin film layered member having high heat dissipation efficiency is composed of at least two diamond layers and at least one interlayer. The diamond layers and the interlayer ape alternately laminated and the diamond layers form outer surfaces of the thin film layered member. When this member is applied to a heatsink or the like, thermal stress to an element mounted thereon can be reduced because of a laminated structure comprising an interlayer having a high coefficient of thermal expansion and diamond layers having a low coefficient of thermal expansion. Further, the interlayer includes a carbide forming metal, which reacts with carbon atoms constituting a diamond in a laminating process and to form a carbide at an interface between the interlayer and the diamond layer, thereby realizing strong bonding therebetween.
REFERENCES:
patent: 4255165 (1981-03-01), Dennis et al.
patent: 4783368 (1988-11-01), Yamamoto et al.
patent: 4784023 (1988-11-01), Dennis
patent: 5010043 (1991-04-01), Ringwood
patent: 5037704 (1991-08-01), Nakai et al.
Higuchi Kazuo
Honkura Yoshinobu
Itoh Akio
Murasaki Shun-ichi
Niimi Mikio
Aichi Steel Works Ltd.
Choi Kathleen
Kabushiki Kaisha Toyota Chuo Kenkyusho
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