Acoustic wave device and module
US-2024088866-A1 · Mar 14, 2024 · US
Acoustic wave device
US8975802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8975802-B2 |
| Application number | US-201213565161-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 2, 2012 |
| Priority date | Aug 31, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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An acoustic wave device includes: a comb-like electrode provided on a piezoelectric substrate; and a first medium that covers the comb-like electrode and has at least a silicon oxide film in which an element is doped, wherein sonic speed in the silicon oxide film in which the element is doped is lower than sonic speed in an undoped silicon oxide film.
First claim
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What is claimed is: 1. An acoustic wave device comprising: a comb-like electrode provided on a piezoelectric substrate; and a first medium that covers the comb-like electrode and has at least a silicon oxide film in which an element is doped, wherein sonic speed in the silicon oxide film in which the element is doped is lower than sonic speed in an undoped silicon oxide film. 2. The acoustic wave device as claimed in claim 1 , wherein the first medium in…
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- H03H9/02834Primary
Electricity · mapped topic
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- What does patent US8975802B2 cover?
- An acoustic wave device includes: a comb-like electrode provided on a piezoelectric substrate; and a first medium that covers the comb-like electrode and has at least a silicon oxide film in which an element is doped, wherein sonic speed in the silicon oxide film in which the element is doped is lower than sonic speed in an undoped silicon oxide film.
- Who is the assignee on this patent?
- Matsuda Satoru, Matsuda Takashi, Miura Michio, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H03H9/02834. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).