The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 19, 2002

Filed:

May. 06, 1999
Applicant:
Inventors:

Xiaocong Guo, Woodinville, WA (US);

Thomas G. Houck, Issaquah, WA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/108 ;
U.S. Cl.
CPC ...
H01L 4/108 ;
Abstract

An ultrasound transducer array ( ) in which the piezoelectric layer ( ) and the matching layer(s) ( ) have different sub-dicing. In one embodiment, the piezoelectric layer ( ) is diced only once and the matching layer(s) ( ) is diced more than once. A resulting transducer shows improved bandwidth, crosstalk and noise performance.


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