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:
Sep. 07, 2021
Filed:
May. 21, 2019
Applicant:
Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;
Inventors:
Ran Hee Shin, Suwon-si, KR;
Tae Kyung Lee, Suwon-si, KR;
Sung Jun Lee, Suwon-si, KR;
Hwa Sun Lee, Suwon-si, KR;
Je Hong Kyoung, Suwon-si, KR;
Sung Sun Kim, Suwon-si, KR;
Jin Suk Son, Suwon-si, KR;
Assignee:
Samsung Electro-Mechanics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/15 (2006.01); H03H 9/17 (2006.01); H03H 9/54 (2006.01);
U.S. Cl.
CPC ...
H03H 9/17 (2013.01); H03H 9/02007 (2013.01); H03H 9/54 (2013.01);
Abstract
A bulk acoustic wave resonator includes a substrate, a seed layer disposed on the substrate, a first electrode disposed on the seed layer and including an aluminum alloy layer containing scandium (Sc), a piezoelectric layer disposed on the first electrode and including a layer having a cation (Al) polarity, and a second electrode disposed on the piezoelectric layer.