| 摘要 |
PROBLEM TO BE SOLVED: To provide a SAW device which is free of characteristic deterioration and very thin and can be made small-sized and lightweight and manufactured with ease by completely stopping insulating resin from entering a vibration space of SAW and forming the vibration space at uniform height to accurate width. SOLUTION: A surface acoustic wave element K1 composed of a piezoelectric substrate 1 having an excitation electrode 5 for generating a surface acoustic wave arranged on an insulating base 7 where a conductor pattern 4 is formed is mounted with an arrangement surface of the excitation electrode 5 up and the conductor pattern 4 on the base 7 and an input/output terminal 2 connected to the excitation electrode 5 of the surface acoustic wave element K1 are connected through a conductor 12 provided in a through hole penetrating the piezoelectric substrate 1 between both the main surfaces, so that the surface acoustic wave device S1 is constituted.
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