| 摘要 |
<p>A surface acoustic wave element comprising a surface acoustic wave absorbing member is mounted on a support base by use of FDB method to obtain a surface acoustic wave device of smaller size and excellent frequency characteristics. In a surface acoustic wave device of the present invention, in an area facing a surface acoustic wave absorbing member on a die-attach surface of a support base, a concave is disposed. On such a die-attach surface of a support base, a surface acoustic wave element is disposed face-down to mount, and a surface acoustic wave absorbing member is embedded, in the absence of contact, in a concave 9 of a support base 2. A bonding pad of a surface acoustic wave element and a signal terminal of a support base are connected through Au bump. <IMAGE></p> |
