Stack based multidimensional ultrasonic transducer array
US6656124B2 · kind B2 · utility
60Cited by
5References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Jan 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B8/4494
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Multilayer piezoelectric fabrication methods are used to produce nD (e.g., 1.5D and 2D) ultrasonic transducer arrays. One embodiment concerns a 1.5 linear transducer in which impedance compensation is provided between the elemental transducers forming the array by varying the number of layers in each row of transducers. In another embodiment, a 2D transducer array is provided wherein elemental transducers are produced by dicing a conventional multilayer actuator to form equal sized elements which are embedded in a polymer matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.