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:
Jul. 24, 2018

Filed:

Mar. 09, 2015
Applicant:

Kolo Technologies, Inc., San Jose, CA (US);

Inventor:

Yongli Huang, San Jose, CA (US);

Assignee:

Kolo Technologies, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/00 (2006.01); H03H 7/01 (2006.01); H03H 3/007 (2006.01); H03H 9/02 (2006.01); H03H 9/24 (2006.01); H03H 9/46 (2006.01); B81C 1/00 (2006.01); H02N 1/00 (2006.01); B81B 3/00 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
B81C 1/00626 (2013.01); B81B 3/0027 (2013.01); B81C 1/00158 (2013.01); B81C 1/00182 (2013.01); H02N 1/006 (2013.01); H03H 3/0072 (2013.01); H03H 9/02259 (2013.01); H03H 9/2405 (2013.01); H03H 9/462 (2013.01); B81C 1/00357 (2013.01); B81C 1/00373 (2013.01); B81C 1/00523 (2013.01); H01L 2924/0002 (2013.01); H04R 19/005 (2013.01); H04R 2201/003 (2013.01); Y10T 29/42 (2015.01); Y10T 29/49005 (2015.01);
Abstract

A capacitive micromachined ultrasound transducer (cMUT) is provided. The cMUT has a first layer having a first electrode and a second layer having a second electrode opposing the first electrode to define a gap width therebetween. At least one of the first layer and the second layer includes a flexible layer having a contact area in contact to a support, such that the first electrode and the second electrode are movable relative to each other to cause a change of the gap width. The support has two substantially continuous shoulder sides each extending along with the flexible layer, each shoulder side making graduated contact with more contact area of the flexible layer as the flexible layer deforms toward the shoulder side, causing the flexible layer to have a dynamically changing spring strength.


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