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SEMICONDUCTOR INTEGRATED CIRCUIT INCLUDING CIRCUIT FOR DRIVING ELECTROSTATIC ACTUATOR, MICRO-ELECTRO-MECHANICAL SYSTEMS, AND DRIVING METHOD OF ELECTROSTATIC ACTUATOR
SEMICONDUCTOR INTEGRATED CIRCUIT INCLUDING CIRCUIT FOR DRIVING ELECTROSTATIC ACTUATOR, MICRO-ELECTRO-MECHANICAL SYSTEMS, AND DRIVING METHOD OF ELECTROSTATIC ACTUATOR
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机译:驱动静电执行器的半导体集成电路,微机电系统以及驱动静电执行器的方法
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摘要
A semiconductor integrated circuit comprises an electrostatic actuator, an estimation circuit, a storage circuit and a bias circuit. The electrostatic actuator has a top electrode, a bottom electrode, and an insulating film disposed between the top electrode and the bottom electrode. The estimation circuit estimates the amount of a charge accumulated in the insulating film of the electrostatic actuator. The storage circuit stores a result of the estimation of the charge amount by the estimation circuit. The bias circuit changes, on the basis of the estimation result stored in the storage circuit, a drive voltage to drive the electrostatic actuator.
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