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. 05, 2020
Filed:
Jun. 05, 2018
Google Llc, Mountain View, CA (US);
Woon Seong Kwon, Cupertino, CA (US);
Phillip La, San Ramon, CA (US);
Michael Trent Wise, Woodside, CA (US);
Google LLC, Mountain View, CA (US);
Abstract
A stiffener apparatus for reducing warpage of an integrated circuit package during heating and cooling are provided. The stiffener apparatus includes an IC substrate configured to receive an IC die on a top side of the IC substrate. The stiffener apparatus includes a primary stiffener ring adhered to the top side of the IC substrate and defining an opening in a region of the IC die such that the primary stiffener ring surrounds the region of the IC die. The primary stiffener ring defines a plurality of grooves. The stiffener apparatus includes a secondary stiffener ring having a plurality of catches configured to engage with the plurality of grooves to removably attach the secondary stiffener ring to the primary stiffener ring on a side of the primary stiffener ring opposite the IC substrate. A method of using a stiffener apparatus during a manufacturing operation is also provided.