| 摘要 |
Disclosed herein is a semiconductor device including: a main body transistor region; and an electrostatic discharge protection element region, wherein the main body transistor region includes, a drain region; a drift region; body regions; a gate insulating film; gate electrodes; source regions; channel regions; and potential extraction regions, and the electrostatic discharge protection element region includes, the body regions; the gate insulating film; the gate electrodes; source regions and drain regions; and potential extraction regions, and a gate length in the electrostatic discharge protection element region is equal to or less than twice a channel length in the main body transistor region.
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