Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – Insulating material
Patent
1997-06-17
1999-03-30
Brown, Peter Toby
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
Insulating material
257702, 257778, H01L 2348
Patent
active
058893210
ABSTRACT:
A stiffener (34 or 52 or 72) includes a pathway which allows gases and fluids, such as air, to be vented from the interface between surface bonding regions (35 or 60 or 74) of the stiffener and an adhesive (38 or 56 or 80) on a flexible substrate (36 or 54 or 78). The pathway may take the form of a porous material used for the stiffener or one or more bore holes (58 or 59 or 70) formed in the stiffener. The stiffener may also include an internal cavity (76) for promoting venting of fluids and gases. By venting fluid and gases from the adhesive/stiffener interface, better adhesion between the stiffener and flexible substrate is achieved.
REFERENCES:
patent: 5216806 (1983-06-01), Lam
patent: 5394009 (1995-02-01), Loo
patent: 5477611 (1995-12-01), Sweis et al.
patent: 5545850 (1996-08-01), Mahulikar et al.
patent: 5550712 (1996-08-01), Crockett
patent: 5767528 (1998-06-01), Sumi et al.
Culnane Thomas M.
Gaynes Michael A.
Kodnani Ramesh R.
Pierson Mark V.
Brown Peter Toby
International Business Machines - Corporation
Potter Roy
Samodovitz, Esq. Arthur J.
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