Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – Insulating material
Patent
1992-07-21
1993-11-30
Pascal, Robert J.
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
Insulating material
257707, 257723, 257724, 257729, 257734, 257735, H01L 2302
Patent
active
052668347
ABSTRACT:
A package is provided for achieving higher packing density and higher circuit integration of memories, in particular, a structure is provided having a plurality of thin, surface mount packages which are stacked up. Each of the laminated packages includes a semiconductor pellet, leads fixed to the front surface of the pellet, a radiating plate fixed to the rear surface of the same, and a resin mold member. To achieve a stabilized laminated structure, the mold member is shaped into a convex form on the front side of the pellet and into a concave form on the rear side of the same, so that the concave portion of one package can engage with the convex portion of another package.
REFERENCES:
patent: 3629672 (1971-12-01), Van De Water
patent: 4012765 (1977-03-01), Lehner et al.
patent: 4398235 (1983-08-01), Lutz et al.
patent: 4939570 (1990-07-01), Bickford et al.
patent: 5068712 (1991-11-01), Murakami et al.
Akima Isao
Kunito Souichi
Nakamura Hideaki
Nishi Kunihiko
Nosaka Toshio
Hitachi , Ltd.
Hitachi VSLI Engineering Corp.
Pascal Robert J.
Ratliff R. A.
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