公开(公告)号：US11701689B2

公开(公告)日：2023-07-18

申请号：US16527997

申请日：2019-07-31

申请人： Resonant Acoustics International Inc.

发明人： Nicholas Chris Chaggares ,  Eric M. Rieder ,  Khachic Karshafian

IPC分类号： B06B1/06 ,  H10N30/85 ,  G10K11/02

CPC分类号： B06B1/067 ,  G10K11/02 ,  H10N30/852

摘要： There are provided an ultrasonic transducer and methods for designing and manufacturing the same. The ultrasonic transducer includes a piezoelectric composite layer configured to be in acoustic communication with a sample and having at least partially decoupled acoustic impedance and electrical impedance properties. The piezoelectric composite layer includes an array of spaced-apart piezoelectric regions, each being made from a piezoelectric material, a filler material positioned between adjacent spaced-apart piezoelectric regions, the filler material comprising a polymer matrix and a non-piezoelectric material in contact with the polymer matrix. In some embodiments, the ultrasonic transducer includes an electrically insulating non-piezoelectric composite layer extending over the piezoelectric composite layer for electrically insulating the piezoelectric composite layer from the sample, the electrically insulating non-piezoelectric composite layer being acoustically matched to the piezoelectric composite layer and the sample.

公开(公告)号：US20230302496A1

公开(公告)日：2023-09-28

申请号：US18205291

申请日：2023-06-02

申请人： RESONANT ACOUSTICS INTERNATIONAL INC.

发明人： Nicholas Chris Chaggares ,  Eric M. Rieder ,  Khachic Karshafian

IPC分类号： B06B1/06 ,  G10K11/02 ,  H10N30/85

CPC分类号： B06B1/067 ,  G10K11/02 ,  H10N30/852

摘要： There are provided an ultrasonic transducer and methods for designing and manufacturing the same. The ultrasonic transducer includes a piezoelectric composite layer configured to be in acoustic communication with a sample and having at least partially decoupled acoustic impedance and electrical impedance properties. The piezoelectric composite layer includes an array of spaced-apart piezoelectric regions, each being made from a piezoelectric material, a filler material positioned between adjacent spaced-apart piezoelectric regions, the filler material comprising a polymer matrix and a non-piezoelectric material in contact with the polymer matrix. In some embodiments, the ultrasonic transducer includes an electrically insulating non-piezoelectric composite layer extending over the piezoelectric composite layer for electrically insulating the piezoelectric composite layer from the sample, the electrically insulating non-piezoelectric composite layer being acoustically matched to the piezoelectric composite layer and the sample.

公开(公告)号：US20200038912A1

公开(公告)日：2020-02-06

申请号：US16527997

申请日：2019-07-31

申请人： Resonant Acoustics International Inc.

发明人： Nicholas Chris Chaggares ,  Eric M. Rieder ,  Khachic Karshafian

IPC分类号： B06B1/06 ,  H01L41/18 ,  G10K11/02

摘要： There are provided an ultrasonic transducer and methods for designing and manufacturing the same. The ultrasonic transducer includes a piezoelectric composite layer configured to be in acoustic communication with a sample and having at least partially decoupled acoustic impedance and electrical impedance properties. The piezoelectric composite layer includes an array of spaced-apart piezoelectric regions, each being made from a piezoelectric material, a filler material positioned between adjacent spaced-apart piezoelectric regions, the filler material comprising a polymer matrix and a non-piezoelectric material in contact with the polymer matrix. In some embodiments, the ultrasonic transducer includes an electrically insulating non-piezoelectric composite layer extending over the piezoelectric composite layer for electrically insulating the piezoelectric composite layer from the sample, the electrically insulating non-piezoelectric composite layer being acoustically matched to the piezoelectric composite layer and the sample.