System comprising a semiconductor device and structure
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United States of America Patent
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Mar 26, 2013
Grant Date -
Mar 3, 2011
app pub date -
Aug 19, 2010
filing date -
Apr 14, 2009
priority date (Note) -
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Abstract
A system includes a semiconductor device. The semiconductor device includes a first single crystal silicon layer comprising first transistors, first alignment marks, and at least one metal layer overlying the first single crystal silicon layer, wherein the at least one metal layer comprises copper or aluminum more than other materials; and a second single crystal silicon layer overlying the at least one metal layer. The second single crystal silicon layer comprises a plurality of second transistors arranged in substantially parallel bands. Each of a plurality of the bands comprises a portion of the second transistors along an axis in a repeating pattern.
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