Surface acoustic wave device and method of making same
US3978436A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1975 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A piezoelectric body has a transducer on one surface. The transducer includes an electrically insulating body on the piezoelectric body; the electrically insulating body has a surface relief pattern on a surface which is opposite the piezoelectric body. An electrically conductive layer is on the electrically insulating body on the surface having the relief pattern thereon. The transducer can be formed by means of a master body. A surface of the master body, having a relief pattern thereon, is pressed against the electrically insulating body to form a relief pattern on the electrically insulating body. The electrically conductive layer is then formed on the electrically insulating body on the surface having the relief pattern thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.