Three dimensional semiconductor package having flexible appendages
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United States of America Patent
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Aug 4, 1998
Grant Date -
N/A
app pub date -
Apr 23, 1996
filing date -
Apr 23, 1996
priority date (Note) -
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Abstract
A three dimensional packaging approach reduces the overall footprint for interconnecting multiple semiconductor die. An three-dimensional folded module (10) produces a final package having a footprint size reduced by an approximate factor of four when compared to conventional electronic packaging. The module has a protective covering such as a cap (62) or a sealant (64) as a moisture barrier. Thus, high integration using flexible appendages (15, 25, 35, and 45) attached to a rigid substrate (12) and singularly folded above the substrate (12) results in both a small footprint package and also a light package. A reel-to-reel flex tape (56) assembly provides pre-tested flex boards (16, 26, 36, and 46) resulting in a cost-effective manufacturable package for semiconductor components.
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