Film carrier

Details Film carrier Film carrier

1992-08-06

1994-09-06

Picard, Leo P.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

257668, H01L 2302

Patent

active

053450396

ABSTRACT:
The present invention relates to a film carrier for semiconductor devices, the film carrier comprising a dielectric film 1 having at least one opening 9 formed therein, and a support ring 2 disposed in the opening and made of a material the same as that of the dielectric film, the support ring 2 being thinner than other portions, without deteriorating the entire mechanical strength of the film carrier, the electric characteristics at the support ring can differ from the electrical characteristic at the other portions of the film carrier.

REFERENCES:
patent: 5064706 (1991-11-01), Ueda et al.
patent: 5087961 (1992-02-01), Long et al.
patent: 5134247 (1992-07-01), Wehner et al.
Connection Technology, Mar. 1988 Electronic Packaging & Production, Feb. 1990.

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