1-Port type surface acoustic wave device

摘要

Disclosed is a 1-port type surface acoustic wave device which can be produced by using the same tools as used for the production of a 2-port type surface acoustic wave device and which makes it possible to achieve a substantial improvement in terms of impact resistance. A 1-port surface acoustic wave resonator 10 includes a surface acoustic wave substrate 11, on one main surface of which there are formed two dummy bump electrodes 16 in addition to two input/output bump electrodes 15 formed at the forward ends of input/output extraction electrodes 14.