首页>
外国专利>
ACTUATOR ELEMENT, METHOD OF DRIVING ACTUATOR ELEMENT, METHOD OF MANUFACTURING ACTUATOR ELEMENT, DEVICE INSPECTION METHOD, AND MEMS SWITCH
ACTUATOR ELEMENT, METHOD OF DRIVING ACTUATOR ELEMENT, METHOD OF MANUFACTURING ACTUATOR ELEMENT, DEVICE INSPECTION METHOD, AND MEMS SWITCH
展开▼
机译:执行器元件,驱动执行器元件的方法,制造执行器元件的方法,设备检查方法和MEMS开关
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To prevent sticking (sticking of an element) in an actuator element using a piezoelectric material.;SOLUTION: A base substrate (10) is arranged to oppose to a movable part including a diaphragm (24) to which a piezoelectric body (30) sandwiched between a pair of electrodes (33, 26) is bonded. The movable part is displaced in a direction approaching the base substrate (10) by application of a drive voltage to the pair of electrodes (33, 26). Polarization (Pr)-electric field (E) hysteresis characteristics of the piezoelectric body (30) are biased with respect to an electric field, and by application of a voltage in an opposite direction to the drive voltage to the pair of electrodes (33, 26), the movable part is displaced in a direction away from the base substrate (10). The element is prevented from sticking by the driving in the opposite direction. An applied electric field during the sticking preventing driving is equal to or less than the coercive electric field of the piezoelectric body (30), preferably, 10 to 80% of the coercive electric field.;COPYRIGHT: (C)2011,JPO&INPIT
展开▼