Semiconductor device having pillar-shaped semiconductor layers
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United States of America Patent
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Jul 17, 2018
Grant Date -
Sep 21, 2017
app pub date -
Jun 1, 2017
filing date -
Mar 3, 2015
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Abstract
A semiconductor device includes a first pillar-shaped semiconductor layer in which a second first-conductivity-type semiconductor layer, a first body region, a third first-conductivity-type semiconductor layer, a fourth first-conductivity-type semiconductor layer, a second body region, a fifth first-conductivity-type semiconductor layer, a first second-conductivity-type semiconductor layer, a third body region, and a second second-conductivity-type semiconductor layer are formed from a substrate side in this order; first, second, and third gates formed around first, second, third gate insulating films formed around the first, second, and third body regions, respectively; a first output terminal connecting the fifth first-conductivity-type semiconductor layer and the first second-conductivity-type semiconductor layer; a second pillar-shaped semiconductor layer, on the first output terminal, in which a third second-conductivity-type semiconductor layer, a fourth body region, and a fourth second-conductivity-type semiconductor layer are formed from the substrate side in this order; and a fourth gate insulating film formed around the fourth body region.
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