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公开(公告)号：SG11201910414UA
公开(公告)日：2020-01-30
申请号：SG11201910414U
申请日：2018-06-14
Applicant: QUALCOMM INC
Inventor： PANCHAWAGH HRISHIKESH VIJAYKUMAR , BADGE ILA RAVINDRA , LU YIPENG , DJORDJEV KOSTADIN DIMITROV , GANTI SURYAPRAKASH , TSENG CHIN-JEN , BUCHAN NICHOLAS IAN , KAO TSONGMING , FENNELL LEONARD EUGENE , SAMMOURA FIRAS , STROHMANN JESSICA LIU , BURNS DAVID WILLIAM
Abstract: Disclosed are methods, devices, apparatuses, and systems for an under-display ultrasonic fingerprint sensor. A display device may include a platen, a display underlying the platen, and an ultrasonic fingerprint sensor underlying the display, where the ultrasonic fingerprint sensor is configured to transmit and receive ultrasonic waves via an acoustic path through the platen and the display. A light-blocking layer and/or an electrical shielding layer may be provided between the ultrasonic fingerprint sensor and the display, where the light-blocking layer and/or the electrical shielding layer are in the acoustic path. A mechanical stress isolation layer may be provided between the ultrasonic fingerprint sensor and the display, where the mechanical stress isolation layer is in the acoustic path.
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Patent Agency Ranking
公开(公告)号：AR108765A1
公开(公告)日：2018-09-26
申请号：ARP170101537
申请日：2017-06-05
Applicant: QUALCOMM INC
Inventor： ADAY JON GREGORY , FENNELL LEONARD EUGENE , BURNS DAVID WILLIAM , DJORDJEV KOSTADIN DIMITROV , STROHMANN JESSICA LIU , SAMMOURA FIRAS , PANCHAWAGH HRISHIKESH VIJAYKUMAR , TSENG CHIN , JEN - VELEZ MARIO FRANCISCO , BUCHAN NICHOLAS IAN
Abstract: Un dispositivo de sensor de huellas digitales incluye un sustrato del sensor, una pluralidad de circuitos del sensor sobre una primera superficie del sustrato del sensor, y una capa de transceptor situada sobre la pluralidad de circuitos del sensor y la primera superficie del sustrato del sensor. La capa de transceptor incluye una capa piezoeléctrica y un electrodo del transceptor posicionado sobre la capa piezoeléctrica. La capa piezoeléctrica y el electrodo del transceptor están configurados para generar una o más ondas ultrasónicas o para recibir una o más ondas ultrasónicas. El dispositivo de sensor de huellas digitales puede incluir una tapa acoplada al sustrato del sensor y una cavidad formada entre la tapa y el sustrato del sensor. La cavidad y el sustrato del sensor pueden formar una barrera acústica.
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公开(公告)号：CA3024317A1
公开(公告)日：2017-12-21
申请号：CA3024317
申请日：2017-06-05
Applicant: QUALCOMM INC
Inventor： BUCHAN NICHOLAS IAN , VELEZ MARIO FRANCISCO , TSENG CHIN-JEN , PANCHAWAGH HRISHIKESH VIJAYKUMAR , SAMMOURA FIRAS , STROHMANN JESSICA LIU , DJORDJEV KOSTADIN DIMITROV , BURNS DAVID WILLIAM , FENNELL LEONARD EUGENE , ADAY JON GREGORY
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.
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公开(公告)号：CA2961645C
公开(公告)日：2021-10-26
申请号：CA2961645
申请日：2015-10-15
Applicant: QUALCOMM INC
Inventor： PANCHAWAGH HRISHIKESH VIJAYKUMAR , TANG HAO-YEN , LU YIPENG , DJORDJEV KOSTADIN DIMITROV , GANTI SURYAPRAKASH , BURNS DAVID WILLIAM , SHENOY RAVINDRA VAMAN , LASITER JON BRADLEY , KUO NAI-KUEI , SAMMOURA FIRAS
Abstract: A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a diaphragm disposed over a cavity, the diaphragm including a piezoelectric layer stack including a piezoelectric layer, a first electrode electrically coupled with transceiver circuitry, and a second electrode electrically coupled with the transceiver circuitry. The first electrode may be disposed in a first portion of the diaphragm, and the second electrode may be disposed in a second, separate, portion of the diaphragm. Each of the first and the second electrode is disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The PMUT is configured to transmit first ultrasonic signals by way of the first electrode during a first time period and to receive second ultrasonic signals by way of the second electrode during a second time period, the first time period and the second time period being at least partially overlapping.
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公开(公告)号：SG11201910413WA
公开(公告)日：2020-01-30
申请号：SG11201910413W
申请日：2018-05-23
Applicant: QUALCOMM INC
Inventor： SAMMOURA FIRAS , BURNS DAVID WILLIAM , SHENOY RAVINDRA VAMAN
Abstract: Implementations of the subject matter described herein relate to sensors including piezoelectric micromechanical ultrasonic transducer (PMUT) sensor elements and arrays thereof. The PMUT sensor elements may be switchable between a non-ultrasonic force detection mode and an ultrasonic imaging mode. A PMUT sensor element may include a diaphragm that is capable of a static displacement on application of a force and is capable of a dynamic displacement when the PMUT sensor element transmits or receives ultrasonic signals. In some implementations, a PMUT sensor element includes a two dimensional-electron gas structure on the diaphragm. The sensors may further include a sensor controller configured to switch between a non-ultrasonic force detection mode and an ultrasonic imaging mode for one or more of the PMUT sensor elements, wherein an applied force is measured in the non-ultrasonic force detection mode and wherein an object is imaged ultrasonically during the ultrasonic imaging mode.
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公开(公告)号：CA2961645A1
公开(公告)日：2016-04-21
申请号：CA2961645
申请日：2015-10-15
Applicant: QUALCOMM INC
Inventor： PANCHAWAGH HRISHIKESH VIJAYKUMAR , TANG HAO-YEN , LU YIPENG , DJORDJEV KOSTADIN DIMITROV , GANTI SURYAPRAKASH , BURNS DAVID WILLIAM , SHENOY RAVINDRA VAMAN , LASITER JON BRADLEY , KUO NAI-KUEI , SAMMOURA FIRAS
Abstract: A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a diaphragm disposed over a cavity, the diaphragm including a piezoelectric layer stack including a piezoelectric layer, a first electrode electrically coupled with transceiver circuitry, and a second electrode electrically coupled with the transceiver circuitry. The first electrode may be disposed in a first portion of the diaphragm, and the second electrode may be disposed in a second, separate, portion of the diaphragm. Each of the first and the second electrode is disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The PMUT is configured to transmit first ultrasonic signals by way of the first electrode during a first time period and to receive second ultrasonic signals by way of the second electrode during a second time period, the first time period and the second time period being at least partially overlapping.
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