Patent ID: 9524918
Filing Date: 2016-12-20
CPC Classification: B22D,B22F,B32B,C22C,C23C,C25D,F28F,H01L

Claim Text:
1. A heat dissipating component for a semiconductor element, comprising an aluminum-diamond composite formed by covering both main faces of a plate-shaped body of thickness 0.4 to 6 mm comprising 40 vol % to 70 vol % diamond particles, the balance consisting of a metal having aluminum as a main component, with a covering layer consisting of a metal having aluminum as a main component or an aluminum-ceramic composite material; wherein (1) an amorphous Ni alloy layer of film thickness 0.1 to 1 μm, (2) a Ni layer of film thickness 1 to 5 μm, and (3) an Au layer of film thickness 0.05 to 4 μm are formed, sequentially from a main face side, on both main faces of the aluminum-diamond composite, such that a ratio between the Ni alloy layer and the Ni layer (Ni alloy layer thickness/Ni layer thickness) is 0.3 or less.