| 发明名称 |
ELASTIC WAVE DEVICE |
| 摘要 |
An elastic wave device includes a piezoelectric substrate, an IDT electrode, and a cover member. The IDT electrode is provided on the piezoelectric substrate. The cover member is provided above the piezoelectric substrate and separate from the IDT electrode. The cover member includes a first cover member and a second cover member. The second cover member is laminated on a side of the first cover member opposite to the piezoelectric substrate. The glass transition point of the first cover member is higher than that of the second cover member. |
| 申请公布号 |
US2015249438(A1) |
申请公布日期 |
2015.09.03 |
| 申请号 |
US201514699007 |
申请日期 |
2015.04.29 |
| 申请人 |
Murata Manufacturing Co., Ltd. |
发明人 |
HIRA Mitsuyoshi;TSUDA Motoji |
| 分类号 |
H03H9/10;H03H9/05;H03H9/02;H01L41/053 |
主分类号 |
H03H9/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An elastic wave device comprising:
a piezoelectric substrate; an IDT electrode that is provided on the piezoelectric substrate; and a cover member that is provided above the piezoelectric substrate and separate from the IDT electrode; wherein the cover member includes a first cover member and a second cover member that is laminated on a side of the first cover member opposite to the piezoelectric substrate; and a glass transition point of the first cover member is higher than a glass transition point of the second cover member. |
| 地址 |
Nagaokakyo-shi JP |
