| 摘要 |
A SRAM memory is composed of FD-SOI transistors, and performance of the memory cell is improved by controlling an electric potential of a layer under a buried oxide film of a SOI transistor constituting a driver transistor. Performance of the SRAM circuit in the low power voltage state is improved. In the SRAM memory cell composed of the FD-SOI transistor, an electric potential of a well under a BOX layer is controlled to control a threshold voltage Vth, thereby increasing a current. Thus, the operations of the memory cell can be stabilized.
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