公开(公告)号：US12209913B2

公开(公告)日：2025-01-28

申请号：US17610406

申请日：2020-05-15

Applicant: TDK Electronics AG

Inventor： Sandro Kappert ,  Stefan Sax ,  Dominik Taferner ,  Amira Hedhili

IPC: G01J5/34 ,  G01L1/16 ,  G01R27/26 ,  H10N30/00 ,  H10N30/03 ,  H10N30/50 ,  H10N30/85 ,  H10N30/857 ,  H10N30/88 ,  B25J19/02

Abstract: In an embodiment a device includes a piezoelectric transducer element and a support connected mechanically to each other thereby forming an assembly, wherein the piezoelectric transducer element and the support are configured to be jointly deformed under an action of a first force, wherein the support includes a neutral fiber arranged inside the support, the neutral fiber configured to not undergo any change in length during a bending of the assembly, and wherein the piezoelectric transducer element includes a ferroelectric polymer layer or a layer having a composite material including a ceramic material and a piezoelectric polymer matrix.

公开(公告)号：US20230270016A1

公开(公告)日：2023-08-24

申请号：US18020284

申请日：2021-07-23

Applicant: TDK Electronics AG

Inventor： Sandro Kappert ,  Stefan Sax ,  Dominik Taferner

IPC: H10N30/88 ,  H10N30/02 ,  H10N30/30 ,  H10N30/857

CPC classification number: H10N30/883 ,  H10N30/02 ,  H10N30/302 ,  H10N30/857

Abstract: --A piezoelectric transducer including a piezoelectric element and an encapsulation which encloses the piezoelectric element. The encapsulation is configured to set the electro-mechanical properties of the transducer. For example, the hardness of a material of the encapsulation and/or or the geometry of the encapsulation is suitably selected.--

公开(公告)号：US20220238784A1

公开(公告)日：2022-07-28

申请号：US17610406

申请日：2020-05-15

Applicant: TDK Electronics AG

Inventor： Sandro Kappert ,  Stefan Sax ,  Dominik Taferner ,  Amira Hedhili

IPC: H01L41/053 ,  H01L41/08 ,  H01L41/083 ,  H01L41/18 ,  H01L41/193 ,  H01L41/25

Abstract: In an embodiment a device includes a piezoelectric transducer element and a support connected mechanically to each other thereby forming an assembly, wherein the piezoelectric transducer element and the support are configured to be jointly deformed under an action of a first force, wherein the support includes a neutral fiber arranged inside the support, the neutral fiber configured to not undergo any change in length during a bending of the assembly, and wherein the piezoelectric transducer element includes a ferroelectric polymer layer or a layer having a composite material including a ceramic material and a piezoelectric polymer matrix.