| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface-mountable, small and precise SAW device and its manufacturing method. SOLUTION: An SAW device has an interdigital transducer 23 formed on a piezoelectric substrate 21, a surface acoustic wave element 20 having leading electrodes 22 electrically connected to the electrode 23, a cap 30 which is connected onto the forming surface of the electrode 23 on the piezoelectric substrate 21 and has notch parts 31 formed at sites equivalent to the electrode 22, an adhesive member 40 formed on the side of the outer peripheral surfaces of the substrate 21 and the cap 30 in order to connect the element 20 and the cap 30, having opening parts 41 at a site equivalent to the parts 31, conductive embedded parts 42 formed so as to fill the parts 41 in order to seal the element 20 and for conducting the electrodes 50 and the electrodes 22, and the electrode parts 50 formed on the surface of the cap 30 and conducted with the electrodes 22 through the members 42.
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