Acoustic Wave Device and Method for Manufacturing Same
AssigneeKYOCERA Corporation
InventorsToru FUKANO, Junya NISHII
Life of this patent
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Abstract
An SAW device (1) has a piezoelectric substrate (3) propagating acoustic waves, and a comb-shaped electrode (6) arranged on a first surface (3a) of the piezoelectric substrate (3). The SAW device (1) has a columnar terminal (15) located on the first surface (3a) and electrically connected to the comb-shaped electrode (6), and a cover member (9) covering the a side surface of the terminal (15). The terminal (15) comprises, in a first region in the height direction of height thereof, a larger diameter on the side of the first surface (3a) compared with the diameter on the side opposite to the first surface (3a).
Claims30
1-20. (canceled)
An acoustic wave substrate, comprising:
- a substrate on which an excitation electrode arranged;
- and
- a cover member covering the excitation electrode, wherein
- the cover member comprises a hole in which a terminal is configured to electrically connect to the excitation electrode, and
- in a sectional view, a first width at a first position of the hole which is parallel to a surface of the substrate is larger than a second width at a second position of the hole which is parallel to the surface of the substrate.
Dependencies are inferred from the claim text.