Elastic wave device and electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorTakashi Iwamoto
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Abstract
An elastic wave device includes a plate-shaped elastic wave element and a resin structure including a high elastic modulus resin portion and low elastic modulus resin portions. The low elastic modulus resin portions are provided in regions of side surfaces of an elastic wave element substrate, which extend from end portions at an IDT electrode formation surface side and do not reach a surface at a side opposite to an IDT electrode formation surface, and a remaining resin portion of a portion of the resin structure, which contacts with the side surfaces of the elastic wave element substrate, is the high elastic modulus resin portion.
Claims20
An elastic wave device comprising:
- an elastic wave element including an elastic wave element substrate including an IDT electrode formation surface and an IDT electrode provided on the IDT electrode formation surface;
- and
- a resin structure including first and second main surfaces opposing each other and being embedded with the elastic wave element such that at least a portion of the IDT electrode formation surface is exposed at the first main surface side;
- wherein
- the resin structure includes a high elastic modulus resin portion having a relatively high elastic modulus and a low elastic modulus resin portion having a relatively low elastic modulus;
- the low elastic modulus resin portion is provided in a region of a side surface of the elastic wave element substrate, which extends from an end portion at the IDT electrode formation surface side and does not reach a surface at a side opposite to the IDT electrode formation surface;
- and
- a remaining resin portion of a portion of the resin structure, which contacts with the side surface of the elastic wave element substrate, is the high elastic modulus resin portion.
Dependencies are inferred from the claim text.