Semiconductor package having a ground or power ring and a metal substrate
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Nov 18, 1996
filing date -
Nov 18, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor package is provided that has a rigid metal substrate and a dielectric layer covering a first portion of the rigid metal substrate, with a second portion of the rigid metal substrate being substantially free of the dielectric layer. A semiconductor device is electrically bonded to the second portion of the rigid metal substrate and metal circuit traces defining electrical paths are formed on the dielectric layer, at least one of which contacts the rigid metal substrate through at least one via in the dielectric layer. Additionally, a method is provided for grounding a semiconductor device and at least one circuit trace on a rigid metal substrate substantially covered by a dielectric layer, which includes creating at least one via in the dielectric layer using a laser and creating circuit traces on the dielectric layer, at least one of which contacts the rigid metal substrate through at least one of the vias. The semiconductor is electrically bonded to the rigid metal substrate in an aperture in the dielectric layer.
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