SAW device.

摘要

A SAW device includes a SAW element (1) which is fixed onto a base substrate in a face down mode, and a cap which is bonded to the base substrate for enclosing the SAW element. A relation L2 < 3.5 X L3 is satisfied between a center distance L2 between a first input/output electrode 7a which is provided on one side of a region provided with IDTs (5a, 5b) and an input/output electrode (8a) which is provided on another side, and a distance L3 between both outer ends of the IDTs (5a, 5b) along a waveguide path among a plurality of input/output electrodes which are connected to the IDTs (5a, 5b) of the SAW element (1).