Patent ID: 7194793

Claim:
A method for producing an edge reflection type surface acoustic wave device which includes at least one interdigital transducer and utilizes a shear horizontal type surface wave, comprising the steps of: forming a plurality of interdigital transducers on a piezoelectric substrate; cutting the piezoelectric substrate and producing a reference edge reflection type surface acoustic wave device including at least one of the interdigital transducers and a pair of edges of the piezoelectric substrate, the pair of edges defining a predetermined distance therebetween; measuring a frequency characteristic of the reference edge reflection type surface acoustic wave; determining a deviation between the measured frequency characteristic and a desired frequency characteristic; determining positions of a pair of edges defining each of remaining edge reflection type surface acoustic wave devices based on the determined deviations so as to correct the deviation; and cutting the piezoelectric substrate at the determined positions to producing the remaining edge reflection type surface acoustic wave devices.