Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – Housing or package filled with solid or liquid electrically...
Patent
1992-10-16
1993-11-23
Jackson, Jerome
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
Housing or package filled with solid or liquid electrically...
257729, 257731, H01L 2302, H01L 2312
Patent
active
052647269
ABSTRACT:
In a chip-carrier provided with a chip-carrier substrate, a chip-carrier cover and an IC chip, said IC chip being arranged at a distance from a circuit surface of the IC chip being directed toward the chip-carrier substrate, an .alpha.-ray shielding film made of film material containing few radioactive elements, and adhered to a surface of the chip-carrier substrate facing the IC chip or to the circuit surface of the IC chip is provided for protecting the IC chip from the IC chip.
REFERENCES:
patent: 4541003 (1985-09-01), Otsuka et al.
patent: 4855869 (1989-08-01), Tsaji
Tsuji Mutsuo
Yamaguchi Yukio
Jackson Jerome
Monin D.
NEC Corporation
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