Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – Smart card package
Patent
1997-03-21
1999-03-02
Brown, Peter Toby
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
Smart card package
257787, 361737, H01L 2302
Patent
active
058775455
ABSTRACT:
A PCMCIA card for use in electronic equipment includes a glass laminate circuit board including a pair of substantially planar, oppositely disposed component-mounting surfaces. Printed circuitry is designed and arranged on at least one of the component-mounting surfaces. At least one integrated circuit package is assembled onto the printed circuitry and has a length dimension direction and a shorter, width dimension direction. In order to reduce the stresses which the integrated circuit package is subjected to during handling of the PCMCIA card, the integrated circuit package is arranged on the circuit board such that the integrated circuit package length dimension direction is substantially parallel to the width dimension direction of a cooperating metal case which is part of the PCMCIA card. The assembled circuit board is encapsulated with a flexible potting compound and enclosed within the metal case to complete the PCMCIA card assembly. In order to further reduce the loading on the integrated circuit component and circuitry, the circuit board thickness does not exceed 0.79 mm (1/32 inch). The circuit board may be fabricated from a flexible polymer based flex circuit material to further reduce any loading.
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Prince David G.
Principe Daniel D.
Brown Peter Toby
Cummins Engine Company, Inc.
Potter Roy
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