发明授权
US4701659A Piezoelectric ultrasonic transducer with flexible electrodes adhered using an adhesive having anisotropic electrical conductivity 失效
使用具有各向异性导电性的粘合剂粘附柔性电极的压电超声换能器

Piezoelectric ultrasonic transducer with flexible electrodes adhered
using an adhesive having anisotropic electrical conductivity
摘要:
An ultrasonic transducer includes a piezoelectric member consisting of either a unpolarized piezoelectric polymer material or the like, or an in-advance polarized piezoelectric polymer material or the like, a first flexible substrate on which a first electrode set and their connecting leads are formed, these being bonded to one surface of the piezoelectric member, and a second flexible substrate on which a second electrode and its connecting lead are formed, these being bonded to the other surface of the piezoelectric member, wherein the piezoelectric member is sandwiched between the first electrode set and second electrode. The electrodes can apply a voltage to polarize the unpolarized piezoelectric polymer material in a manufacturing process of the piezoelectric member, or apply a drive voltage to the finished ultrasonic transducer. Also disclosed is a method of manufacturing the ultrasonic transducer.
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