Patent ID: 11864464
Assignee: CREATING NANO TECHNOLOGIES, INC.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 4:
5. A method for polarizing a piezoelectric film, comprising:
forming a piezoelectric film on a substrate by using a coating method;
performing a stripping treatment to detach the piezoelectric film from the substrate;
flat adhering the piezoelectric film to an even surface of a conductive substrate to make an adhesion surface of the piezoelectric film being in contact with the even surface of the conductive substrate, wherein flat adhering the piezoelectric film to the even surface of the conductive substrate comprises 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; and
performing a polarization process on the piezoelectric film by using a plasma source while the piezoelectric film is flat adhered to the even surface of the conductive substrate, wherein the plasma source is located over the piezoelectric film and is separated from the piezoelectric film.