Method for manufacturing surface wave devices of the end-face reflection type

摘要

A method of manufacturing a surface wave device of an end-face reflection type comprising forming an IDT 12 on a piezoelectric plate 11, and cutting the piezoelectric plate 11 in a direction which is parallel to the outermost electrode fingers of the IDT within a target area which extends from the out edges of the outermost electrodes to a position lambda /8 outwardly therefrom, lambda being the wavelength of the surface wave generated by the IDT, so as to form opposite end faces of the surface wave device.