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:
Jan. 21, 2025
Filed:
Dec. 18, 2023
Shenzhen Newsonic Technologies Co., Ltd., Shenzhen, CN;
Weiwei Hu, Shenzhen, CN;
Shenzhen Newsonic Technologies Co., Ltd., Shenzhen, CN;
Abstract
A bulk acoustic wave (BAW) resonator includes a bottom substrate, a piezoelectric layer disposed above the bottom substrate, a cap wafer disposed above the piezoelectric layer, a top electrode disposed on the piezoelectric layer, a bottom electrode disposed below the piezoelectric layer, a first pad metal layer disposed on and electrically connected to the top electrode. a second pad metal layer disposed on and electrically connected to the bottom electrode, a top bonding layer disposed below the cap wafer, for bonding the cap wafer with the piezoelectric layer; and a bond contacting layer disposed between the top bonding layer and each one of the first pad metal layer and the second pad metal layer.