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:
May. 14, 2024
Filed:
Aug. 23, 2021
Qualcomm Incorporated, San Diego, CA (US);
Ranadeep Dutta, Del Mar, CA (US);
Jonghae Kim, San Diego, CA (US);
Je-Hsiung Lan, San Diego, CA (US);
QUALCOMM INCORPORATED, San Diego, CA (US);
Abstract
Surface acoustic wave (SAW) filter packages employing an enhanced thermally conductive cavity frame for heat dissipation, and related fabrication methods are disclosed. The SAW filter package also includes a cavity frame comprising a perimeter structure and a cavity inside the perimeter structure coupled to a substrate of a piezoelectric material that contains interdigital transducers (IDTs). A cap substrate is disposed on the perimeter structure of the cavity frame to enclose an air cavity inside the perimeter structure between a substrate and the cap substrate. In exemplary aspects, to effectively dissipate heat generated in the SAW filter package to maintain the desired performance of the SAW filter, the cavity frame is comprised of a material that has an enhanced thermal conductivity. The heat generated in the SAW filter package can more effectively be dissipated, particularly at edges and corners of the cavity frame where hot spots can particularly occur.