Kratz, Quintos & Hanson, LLP
Wiring substrate and method of manufacturing the same
A wiring substrate includes a composite substrate including an oxidized aluminum substrate portion in which a large number of penetration conductors penetrating in a thickness direction are provided, and a frame-like aluminum substrate portion provided around the oxidized aluminum substrate portion, and a wiring layer of n layers (n is an integer of 1 or more) connected to the penetration conductors.
Shinko Electric Industries Co., Ltd.
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Michio Tomoo
Horiuchi Yamasaki