Surface acoustic wave device and method for manufacturing the same

摘要

A surface acoustic wave device (50) includes a piezoelectric substrate (1), an interdigital transducer (IDT) electrode (2), and a connecting portion (3) that is electrically connected with the IDT electrode (2). The surface acoustic wave device (50) further includes a wiring portion (4), a portion of which is disposed on the connecting portion (3), and a bump (5) disposed on the wiring portion (4). The connecting portion (3) includes a comb-shaped portion (6) at an end of the connecting portion (3) on which the wiring portion (4) is disposed.