The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2013
Filed:
Sep. 22, 2011
Jinli Qu, Singapore, SG;
Ming Lin Julius Tsai, Singapore, SG;
BO Woon Jeffrey Soon, Singapore, SG;
Agency for Science, Technology and Research, Singapore, SG;
Abstract
According to embodiments of the present invention, a transducer is provided. The transducer includes a first electrode, a second electrode disposed over the first electrode such that the first electrode and the second electrode form respective capacitive electrodes of a capacitor, the second electrode comprising a core portion and a peripheral portion, a third electrode disposed relative to the second electrode such that the third electrode overlaps with the peripheral portion of the second electrode, and a piezoelectric element disposed between the peripheral portion of the second electrode and the third electrode, so as to tune a tensional force provided by the piezoelectric element onto the second electrode by varying a piezoelectric voltage applied between the second electrode and the third electrode.