Patent · US Active

Method for forming a matching layer structure of an acoustic stack

US7905007B2 · kind B2 · utility

75Cited by

4References

11Claims

0Family size

Assignee

General Electric Company · US

Inventors

Serge Calisti · Istres, FR
Frederic Lanteri · Le Cannet, FR
Lowell Scott Smith · Niskayuna, US
Charles Edward Baumgartner · Niskayuna, US
Jean-Francois Gelly · Valbonne, FR

Key dates

Filing date	Mar 18, 2009
Grant date	Mar 15, 2011
Priority date	—
Expiry date	Mar 18, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4908
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An acoustical stack for an ultrasound probe comprises a piezoelectric layer having top and bottom sides and a plurality of matching layer sections forming a matching layer structure. Each of the matching layer sections comprises a spring layer comprising a first material and a mass layer comprising a second material that is different than the first material. The spring layer within the matching layer section that is positioned closest to the piezoelectric layer is thinner than the spring layer within the other matching layer sections.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.