| 摘要 |
PROBLEM TO BE SOLVED: To realize rapidity of mode transition and reduced power consumption in a semiconductor device having a constitution which can control well potential according to an operation mode. SOLUTION: An electrically connectable charge transmission part is provided in response to mode transition between an n-well and a p-well, wherein a transistor constituting a CMOS logic circuit is formed. Since the charge transmission part transmits redundant charge of the n-well to the p-well in mode transition which requires lowering of the potential of the n-well and rising of the potential of the p-well, it is possible to carry out mode transition at a high speed without consuming electric charge uselessly. COPYRIGHT: (C)2004,JPO
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