公开(公告)号：US20170329005A9

公开(公告)日：2017-11-16

申请号：US15415570

申请日：2017-01-25

Applicant: David Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

Inventor： David Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

IPC: G01S15/10 ,  B81B3/00 ,  G01S7/524 ,  B06B1/02 ,  B06B1/06

CPC classification number: G01S15/10 ,  B06B1/0215 ,  B06B1/0292 ,  B06B1/0644 ,  B06B1/0651 ,  B06B2201/51 ,  B06B2201/55 ,  B06B2201/70 ,  B81B3/0021 ,  G01S7/521 ,  G01S7/524 ,  G01S7/527 ,  G01S15/04 ,  G01S15/46 ,  G01S15/87 ,  G01S2015/465

Abstract: A miniature rangefinder includes a housing, a micromachined ultrasonic transducer, and signal processing circuitry. The housing includes a substrate and a lid. The housing has one or more apertures and the micromachined ultrasonic transducer is mounted over an aperture. The micromachined ultrasonic transducer may function as both a transmitter and a receiver. An integrated circuit is configured to drive the transducer to transmit an acoustic signal, detect a return signal, and determine a time of flight between emitting the acoustic signal and detecting the return signal.

公开(公告)号：US10562069B2

公开(公告)日：2020-02-18

申请号：US15405876

申请日：2017-01-13

Applicant: David A. Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

Inventor： David A. Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

IPC: B06B1/06 ,  H01L41/053 ,  H01L41/18 ,  H01L41/277

Abstract: A piezoelectric micromachined ultrasound transducer (PMUT) is disclosed. The PMUT consists of a flexural membrane that is piezoelectrically actuated. These membranes are formed on a first substrate that is bonded to a second substrate. The two substrates are separated by an air gap to allow the PMUT to vibrate. Several methods for joining the two substrates are described.

公开(公告)号：US10324181B2

公开(公告)日：2019-06-18

申请号：US15415570

申请日：2017-01-25

Applicant: David Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

Inventor： David Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

IPC: G01S15/10 ,  G01S7/524 ,  B81B3/00 ,  B06B1/02 ,  B06B1/06 ,  G01S7/521 ,  G01S7/527 ,  G01S15/04 ,  G01S15/46 ,  G01S15/87

Abstract: A miniature rangefinder includes a housing, a micromachined ultrasonic transducer, and signal processing circuitry. The housing includes a substrate and a lid. The housing has one or more apertures and the micromachined ultrasonic transducer is mounted over an aperture. The micromachined ultrasonic transducer may function as both a transmitter and a receiver. An integrated circuit is configured to drive the transducer to transmit an acoustic signal, detect a return signal, and determine a time of flight between emitting the acoustic signal and detecting the return signal.

公开(公告)号：US20170184718A1

公开(公告)日：2017-06-29

申请号：US15415570

申请日：2017-01-25

Applicant: David Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

Inventor： David Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

IPC: G01S15/10 ,  G01S7/524 ,  B81B3/00 ,  B06B1/06 ,  B06B1/02

CPC classification number: G01S15/10 ,  B06B1/0215 ,  B06B1/0292 ,  B06B1/0644 ,  B06B1/0651 ,  B06B2201/51 ,  B06B2201/55 ,  B06B2201/70 ,  B81B3/0021 ,  G01S7/521 ,  G01S7/524 ,  G01S7/527 ,  G01S15/04 ,  G01S15/46 ,  G01S15/87 ,  G01S2015/465

Abstract: A miniature rangefinder includes a housing, a micromachined ultrasonic transducer, and signal processing circuitry. The housing includes a substrate and a lid. The housing has one or more apertures and the micromachined ultrasonic transducer is mounted over an aperture. The micromachined ultrasonic transducer may function as both a transmitter and a receiver. An integrated circuit is configured to drive the transducer to transmit an acoustic signal, detect a return signal, and determine a time of flight between emitting the acoustic signal and detecting the return signal.

公开(公告)号：US20170128983A1

公开(公告)日：2017-05-11

申请号：US15405876

申请日：2017-01-13

Applicant: David A. Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

Inventor： David A. Horsley ,  Andre Guedes ,  Meng-Hsiung Kiang ,  Richard J. Przybyla ,  Stefon Shelton

IPC: B06B1/06 ,  H01L41/18 ,  H01L41/277 ,  H01L41/053

CPC classification number: B06B1/0622 ,  B06B1/0629 ,  H01L41/047 ,  H01L41/053 ,  H01L41/0973 ,  H01L41/18 ,  H01L41/277 ,  H01L41/313

Abstract: A piezoelectric micromachined ultrasound transducer (PMUT) is disclosed. The PMUT consists of a flexural membrane that is piezoelectrically actuated. These membranes are formed on a first substrate that is bonded to a second substrate. The two substrates are separated by an air gap to allow the PMUT to vibrate. Several methods for joining the two substrates are described.