US 12,068,736 B2
Multiplexer with floating raised frame bulk acoustic wave device
Jiansong Liu, Fremont, CA (US); Yuhao Liu, Irvine, CA (US); Kwang Jae Shin, Yongin (KR); and Chun Sing Lam, San Jose, CA (US)
Assigned to Skyworks Global Pte. Ltd., Singapore (SG)
Filed by Skyworks Global Pte. Ltd., Singapore (SG)
Filed on Apr. 26, 2023, as Appl. No. 18/139,745.
Application 18/139,745 is a continuation of application No. 17/130,386, filed on Dec. 22, 2020, granted, now 11,677,374.
Application 17/130,386 is a continuation of application No. 16/898,840, filed on Jun. 11, 2020, granted, now 11,316,494, issued on Apr. 26, 2022.
Claims priority of provisional application 62/861,871, filed on Jun. 14, 2019.
Claims priority of provisional application 62/861,873, filed on Jun. 14, 2019.
Prior Publication US 2023/0378929 A1, Nov. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H03H 9/02 (2006.01); H03H 9/05 (2006.01); H03H 9/13 (2006.01); H03H 9/54 (2006.01)
CPC H03H 9/02118 (2013.01) [H03H 9/0211 (2013.01); H03H 9/0504 (2013.01); H03H 9/13 (2013.01); H03H 9/54 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bulk acoustic wave device with raised frame mode suppression, the bulk acoustic wave device comprising:
at least a first electrode and a second electrode;
a piezoelectric layer positioned between the first electrode and the second electrode; and
a floating raised frame structure between the first electrode and the piezoelectric layer, the floating raised frame structure being at a floating potential.