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.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
May. 08, 2017
Kolo Technologies, Inc., San Jose, CA (US);
Li Chen, San Jose, CA (US);
Yongli Huang, San Jose, CA (US);
Kolo Technologies, Inc., San Jose, CA (US);
Abstract
In some examples, a capacitive micromachined ultrasonic transducer (CMUT) apparatus includes one or more CMUTs formed on a CMUT substrate to have an operational direction facing away from the CMUT substrate. A first layer of a first material is disposed over the one or more CMUTs for passing acoustic energy to or from the one or more CMUTs in the operational direction. The first layer may be a solid, liquid, gel, or colloid. Further, a second layer of a second material may be disposed over the first layer and may be a different material from the first material. In some cases, the second layer may be a solid with an inner surface having a curvature facing the first layer. Additionally, or alternatively, in some cases, the acoustic impedance of the first material and the second material may be between 1 and 2 MRayl.