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. 11, 2021
Filed:
Feb. 10, 2017
Qualcomm Incorporated, San Diego, CA (US);
Nicholas Ian Buchan, San Jose, CA (US);
Mario Francisco Velez, San Diego, CA (US);
Chin-Jen Tseng, Fremont, CA (US);
Hrishikesh Vijaykumar Panchawagh, Cupertino, CA (US);
Firas Sammoura, San Jose, CA (US);
Jessica Liu Strohmann, Cupertino, CA (US);
Kostadin Dimitrov Djordjev, San Jose, CA (US);
David William Burns, San Jose, CA (US);
Leonard Eugene Fennell, San Jose, CA (US);
Jon Gregory Aday, Escondido, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A fingerprint sensor device includes a sensor substrate, a plurality of sensor circuits over a first surface of the sensor substrate, and a transceiver layer located over the plurality of sensor circuits and the first surface of the sensor substrate. The transceiver layer includes a piezoelectric layer and a transceiver electrode positioned over the piezoelectric layer. The piezoelectric layer and the transceiver electrode are configured to generate one or more ultrasonic waves or to receive one or more ultrasonic waves. The fingerprint sensor device may include a cap coupled to the sensor substrate and a cavity formed between the cap and the sensor substrate. The cavity and the sensor substrate may form an acoustic barrier.