Boundary acoustic wave device and process for producing same
US7550898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2007 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4908
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a method for producing a boundary acoustic wave device that includes a first medium, a second medium, and a third medium laminated in that order, and electrodes disposed at the interface between the first medium and the second medium, the method includes the steps of preparing a laminate including the first medium, the second medium, and the electrodes disposed at the interface between the first medium and the second medium, adjusting the thickness of the second medium after the step of preparing the laminate to regulate a frequency or the acoustic velocity of a surface acoustic wave, a pseudo-boundary acoustic wave, or a boundary acoustic wave, after the adjusting step, forming the third medium different from the second medium in terms of the acoustic velocity with which the boundary acoustic wave propagates therethrough and/or in terms of material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.