Manufacturing method of a high frequency ultrasound transducer having an ultrasonic lens with integral central matching layer
US11931203B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2021 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Sep 1, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods for fabricating high frequency ultrasound transducers are disclosed. The methods include fabricating an acoustic lens layer with a curved center section and two flat side sections. The curved section includes a center portion with a midpoint and an edge. The midpoint has a first thickness, and the edge has a second thickness. The center portion is fabricated so that an average of the first and second thicknesses is approximately equal to an odd multiple of a quarter-wavelength of the center frequency of the ultrasound transducer. The methods can also include bonding the lens layer to a matching layer that is operationally coupled to a transducer layer. The matching layer can include an epoxy layer and another layer. Bonding the lens layer includes bonding the other layer to the lens layer using the epoxy layer such that the other layer is positioned between the epoxy layer and the transducer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.