Thin multi-chip flex module
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United States of America Patent
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Oct 15, 2013
Grant Date -
May 19, 2011
app pub date -
Jan 21, 2011
filing date -
Jan 2, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A flexible circuit comprises a folded dielectric sheet having conductive patterns on its surface(s) to which microelectronic device(s) are attached. The dielectric sheet is folded 180° about a selected axis and a bond layer joins the two halves over a portion of their respective surface areas so that a remaining portion of their areas remain unbonded and a bifurcated structure is thereby formed. Electrical contacts are provided on the unbonded or bifurcated portions of the flexible sheets. The flex may be attached to a rigid frame and provided with protective heat spreading covers. The folded flex design is particularly suitable for reel-to-reel manufacturing.
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