Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2005-09-07
2010-11-23
Speer, Timothy M (Department: 1784)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S313300, C428S313900, C428S317900, C428S318400, C428S319100, C428S332000, C428S545000, C428S698000
Reexamination Certificate
active
07838107
ABSTRACT:
An aluminum/silicon carbide composite prepared by infiltrating a flat silicon carbide porous body with a metal containing aluminum as the main component, including an aluminum alloy layer made of a metal containing aluminum as the main component on both principal planes, and one principal plane is bonded to a circuit plate and the other principal plane is utilized as a radiation plane. The silicon carbide porous body is formed or machined into a convexly bowed shape, and after infiltration with the metal containing aluminum as the main component, the aluminum alloy layer on the radiation plane is further machined to form the bow shape. The aluminum/silicon carbide composite is suitable as a base plate for a ceramic circuit plate on which semiconductor components are mounted, for which high reliability is required.
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Japanese Office Action mailed Oct. 5, 2010 in Japanese Patent Application No. 2006-535802 (with English translation) 7 pages.
Hirahara Kazunori
Hirotsuru Hideki
Iwamoto Goh
Denki Kagaku Kogyo Kabushiki Kaisha
Langman Jonathan C
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Speer Timothy M
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