公开(公告)号：US11864464B2

公开(公告)日：2024-01-02

申请号：US17163585

申请日：2021-02-01

Applicant: CREATING NANO TECHNOLOGIES, INC.

Inventor： Ji-Yung Lee ,  Andrew Ronaldi Tandio ,  Bo-Fan Tsai

IPC: H10N30/045 ,  H10N30/077 ,  H10N30/857

CPC classification number: H10N30/045 ,  H10N30/077 ,  H10N30/857

Abstract: A method for polarizing a piezoelectric film is described. In this method, a piezoelectric film is formed by using an injection deposition method. The piezoelectric film is flat adhered to a surface of a conductive substrate. A polarization process is performed on the piezoelectric film while the piezoelectric film is flat adhered to the surface of the conductive substrate by generating static electricity on the adhesion surface of the piezoelectric film, and generating the static electricity on the adhesion surface of the piezoelectric film comprises using a pressurized gas to blow the adhesion surface, and the adhesion surface of the piezoelectric film is adhered to the even surface of the conductive substrate by an electrostatic adsorption method.

公开(公告)号：US11680974B2

公开(公告)日：2023-06-20

申请号：US17329172

申请日：2021-05-25

Applicant: CREATING NANO TECHNOLOGIES, INC.

Inventor： Ji-Yung Lee ,  Andrew Ronaldi Tandio ,  Hung-Chan Chiang ,  Bo-Fan Tsai

IPC: G01R29/22 ,  G01R29/12 ,  H10N30/045 ,  H10N30/857 ,  H10N30/853

CPC classification number: G01R29/22 ,  G01R29/12 ,  H10N30/045 ,  H10N30/857 ,  H10N30/8554

Abstract: A method for monitoring polarization quality of a piezoelectric film is described. In this method, a detection step is performed on a piezoelectric film by using a detection device with a non-contact method during a polarization process of the piezoelectric film, to obtain a static electricity information or a transmittance information. A determination step is performed by using the static electricity information or the transmittance information to determine a polarization degree of the piezoelectric film.