Semiconductor device
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United States of America Patent
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Apr 10, 2012
Grant Date -
Apr 30, 2009
app pub date -
Oct 29, 2008
filing date -
Oct 30, 2007
priority date (Note) -
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Abstract
A semiconductor device according to the present invention includes a semiconductor substrate and an MEMS sensor provided on the semiconductor substrate. The MEMS sensor includes a first electrode having a plurality of first interdigital portions aligned in a prescribed direction X at an interval, a second electrode, having a plurality of second interdigital portions aligned in the direction X at an interval, so arranged that the second interdigital portions are opposed to the first interdigital portions in the direction X respectively, a third electrode having a plurality of third interdigital portions aligned in a direction Y orthogonal the direction X at an interval, a fourth electrode, having a plurality of fourth interdigital portions aligned in the direction Y at an interval, so arranged that the fourth interdigital portions are opposed to the third interdigital portions in the direction Y respectively, and a fifth electrode opposed to the first electrode, the second electrode, the third electrode and the fourth electrode in a direction Z orthogonal to the direction X and the direction Y.
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