Boundary acoustic wave device comprising Ni diffused in Au and method for manufacturing the same
US7554428B2 · kind B2 · utility
4Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 13, 2008 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Aug 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A boundary acoustic wave device includes a first medium, a second medium, and an IDT electrode disposed at an interface between the first medium and the second medium, the IDT electrode having an Au layer defining a main electrode layer, wherein a Ni layer is laminated so as to contact at least one surface of the Au layer, and a portion of Ni defining the Ni layer is diffused from the Ni layer side surface of the Au layer toward the inside of the Au layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.