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公开(公告)号：KR20180066096A
公开(公告)日：2018-06-18
申请号：KR20187010264
申请日：2016-10-14
Applicant: QUALCOMM INC
Inventor： PANCHAWAGH HRISHIKESH VIJAYKUMAR , GANTI SURYAPRAKASH , DJORDJEV KOSTADIN DIMITROV , BURNS DAVID WILLIAM , DICKINSON TIMOTHY ALAN , KIDWELL JR DONALD WILLIAM , SHENOY RAVINDRA VAMAN , LASITER JON BRADLEY , TANG HAO YEN , LU YIPENG
IPC: H01L41/09 , B06B1/02 , B06B1/06 , G01S7/52 , G06F3/043 , G06K9/00 , H01L27/12 , H01L27/20 , H01L41/083 , H01L41/113 , H01L41/311
CPC classification number: H01L27/20 , B06B1/0207 , B06B1/0607 , G01S7/52028 , G06F3/0436 , G06K9/0002 , H01L27/1214 , H01L41/1132 , H01L41/311
Abstract: 초음파센서픽셀은, 기판, 압전마이크로기계식초음파트랜스듀서(PMUT), 및센서픽셀회로를포함한다. PMUT는, 캐비티위에배치된압전층을포함하는압전층 스택― 캐비티는압전층 스택과기판사이에배치됨―; 압전층과캐비티사이에배치되는기준전극; 및압전층의제1 표면상에또는그에근접하게배치되는수신전극및 송신전극중 하나또는둘 모두를포함하며, 제1 표면은캐비티에대향한다. 센서픽셀회로는기준전극, 수신전극, 및송신전극중 하나이상과전기적으로커플링되고, PMUT 및센서픽셀회로는기판상의센서픽셀회로와통합된다.
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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：CA3019158A1
公开(公告)日：2017-11-09
申请号：CA3019158
申请日：2017-04-05
Applicant: QUALCOMM INC
Inventor： LU YIPENG , BURNS DAVID WILLIAM
Abstract: An apparatus may include an ultrasonic sensor array, a light source system and a control system. Some implementations may include an ultrasonic transmitter. The control system may be operatively configured to control the light source system to emit light that induces acoustic wave emissions inside a target object. The control system may be operatively configured to select a first acquisition time delay for the reception of acoustic wave emissions primarily from a first depth inside the target object. The control system may be operatively configured to acquire first ultrasonic image data from the acoustic wave emissions received by the ultrasonic sensor array during a first acquisition time window. The first acquisition time window may be initiated at an end time of the first acquisition time delay.
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公开(公告)号：CA3019158C
公开(公告)日：2022-05-03
申请号：CA3019158
申请日：2017-04-05
Applicant: QUALCOMM INC
Inventor： LU YIPENG , BURNS DAVID WILLIAM
IPC: A61B5/00
Abstract: An apparatus may include an ultrasonic sensor array, a light source system and a control system. Some implementations may include an ultrasonic transmitter. The control system may be operatively configured to control the light source system to emit light that induces acoustic wave emissions inside a target object. The control system may be operatively configured to select a first acquisition time delay for the reception of acoustic wave emissions primarily from a first depth inside the target object. The control system may be operatively configured to acquire first ultrasonic image data from the acoustic wave emissions received by the ultrasonic sensor array during a first acquisition time window. The first acquisition time window may be initiated at an end time of the first acquisition time delay.
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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：CA3019154A1
公开(公告)日：2017-11-09
申请号：CA3019154
申请日：2017-04-05
Applicant: QUALCOMM INC
Inventor： LU YIPENG , BURNS DAVID WILLIAM
IPC: G06K9/00
Abstract: A biometric system may include an ultrasonic sensor array, a light source system and a control system. Some implementations may include an ultrasonic transmitter. The control system may be capable of controlling the light source system to emit light and of receiving signals from the ultrasonic sensor array corresponding to acoustic waves emitted from portions of a target object in response to being illuminated with the light emitted by the light source system. The control system may be capable of performing a user authentication process that is based, at least in part, on the signals from the ultrasonic sensor array.
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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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