ELASTIC SURFACE WAVE DEVICE

摘要

An elastic surface wave device that has good frequency characteristics and no unwanted signals, and is highly suited for mass production, comprising a piezoelectric substrate, at least one pair of transmitting and receiving electrodes on the surface of said substrate, and elastic surface wave absorbers formed by curing a composition, the main component of which is a resin curable by ultraviolet radiation, disposed on at least part of the zone on said piezoelectric substrate that propagates unwanted elastic surface waves.