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:
Apr. 14, 2020
Filed:
Feb. 23, 2017
Qualcomm Incorporated, San Diego, CA (US);
Donald William Kidwell, Jr., Los Gatos, CA (US);
Ravindra Vaman Shenoy, Dublin, CA (US);
Jon Bradley Lasiter, Stockton, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An apparatus may include one or more segmented piezoelectric micromechanical ultrasonic transducer (PMUT) elements. Each segmented PMUT element may include a substrate, an anchor structure disposed on the substrate and a membrane disposed proximate the anchor structure. The membrane may include a piezoelectric layer stack and a mechanical layer. The anchor structure may include boundary portions that divide the segmented PMUT element into segments. Each segment may have a corresponding segment cavity. The boundary portions may correspond to nodal lines of the entire membrane. The membrane may include a membrane segment disposed proximate each segment cavity. The membrane may be configured to undergo one or both of flexural motion and vibration when the segmented PMUT element receives or transmits signals.