| 摘要 |
A surface acoustic wave device and its manufacturing method. A surface acoustic wave device is used as filters for VHF and UHF range signals, or resonators for VHF and UHF range, by driving the surface of a surface acoustic wave element with applied signal to electrodes, transmitting a surface acoustic wave, and receiving the surface acoustic wave with other electrodes. In a configuration of a surface mount type surface acoustic wave device where a surface acoustic wave element (446) is mounted inside a package consisting of a base (448) and a cover (422), pads (458) are attached on a surface of the base and the surface acoustic wave element is fixed to the base by face down bonding. <IMAGE> |
