Indium or tin bonded acoustic transducer systems
US7141917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Jun 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S134/902
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An acoustic transducer comprised of a resonator, an acoustic energy generating means, such as one or more piezoelectric crystals, and a bonding layer comprised of indium or tin for attaching the acoustic energy generating means to the resonator. The resonator comprises a material selected from the group consisting of quartz, sapphire, silicon carbide, silicon nitride, aluminum, ceramics and stainless steel. The resonator may form a detachable part of a container or the acoustic energy generating means may be attached directly to a side or to the bottom of the container, in which case a part of the container acts as the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.