Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Die bond
Patent
1998-03-27
2000-04-25
Clark, Sheila V.
Active solid-state devices (e.g., transistors, solid-state diode
Combined with electrical contact or lead
Die bond
257781, H01L 2348, H01L 2352, H01L 2940
Patent
active
060547731
ABSTRACT:
An adhesive sheet which has rigidity and a portion which adheres to the back surface of the outside portion of the film circuit is used. Specifically, there is used the adhesive sheet which is obtained by forming cushioning adhesive sheet layers on both the surfaces of the rigid sheet layer formed of stainless or the like. Further, the rigid sheet layer is also used for electrostatic shield. The co-planarity of external terminals (soldering balls) is enhanced without vainly increasing the weight of a semiconductor device, and further the resistance to high-frequency noses in the semiconductor device is enhanced.
REFERENCES:
patent: 4907061 (1990-03-01), Kohara
patent: 5523622 (1996-06-01), Harada et al.
patent: 5604379 (1997-02-01), Mori
patent: 5892271 (1999-04-01), Takeda et al.
patent: 5895965 (1999-04-01), Tanaka et al.
Ohsawa Kenji
Sato Kazuhiro
Shigeta Hiroyuki
Clark Sheila V.
Sony Corporation
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