Push-pull capacitive micro-machined ultrasound transducer array
US7903830B2 · kind B2 · utility
13Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2006 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jan 6, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0292
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A push-pull capacitive micromechanical ultrasound transducer (CMUT) is provided for ultrasound imaging or therapy. Gaps and electrodes on both sides of an electrostatic membrane provide push-pull operation. The membrane is oriented to flex in a direction of acoustic propagation. A surface connected to the membrane may better expose the movement to the acoustic medium even in the push-pull arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.