US 12,463,617 B2
Acoustic resonator
Huiyao Chen, Hillsboro, OR (US); Ting-Ta Yen, San Jose, CA (US); Ricky A. Jackson, Richardson, TX (US); and Keegan Martin, Dallas, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 30, 2021, as Appl. No. 17/364,214.
Prior Publication US 2023/0006635 A1, Jan. 5, 2023
Int. Cl. H03H 9/02 (2006.01); H03H 3/02 (2006.01); H03H 3/08 (2006.01); H03H 9/17 (2006.01)
CPC H03H 9/02685 (2013.01) [H03H 3/02 (2013.01); H03H 3/08 (2013.01); H03H 9/0211 (2013.01); H03H 9/17 (2013.01); H03H 2003/025 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an acoustic resonator;
multiple layers of different impedances that overlap at least partially with the acoustic resonator along an axis; and
a grating layer overlapping at least part of the multiple layers along the axis.