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:
Jul. 12, 2022
Filed:
Jul. 29, 2019
Nxp Usa, Inc., Austin, TX (US);
Colby Greg Rampley, Phoenix, AZ (US);
Jeffrey Lynn Weibrecht, Gilbert, AZ (US);
Jeremy Kenneth Kramer, Gilbert, AZ (US);
Elijah Blue Foster, Chandler, AZ (US);
Melissa Picard, Gilbert, AZ (US);
NXP USA, Inc., Austin, TX (US);
Abstract
A device wafer is provided that includes a substrate having major and minor surfaces, and a plurality of active devices located at the major surface. A eutectic alloy composition having a first thickness is formed at the minor surface of the substrate. The eutectic alloy composition is partially removed from the minor surface of the substrate such that a second thickness of the eutectic alloy composition remains on the minor surface, the second thickness being less than the first thickness. A bonding layer is deposited over the eutectic alloy composition. The bonding layer is utilized for joining semiconductor components of the device wafer to secondary structures.