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:
Oct. 24, 2017
Filed:
Dec. 18, 2015
Applicant:
Intel Corporation, Santa Clara, CA (US);
Inventors:
Assignee:
INTEL CORPORATION, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/04 (2006.01); H01L 23/00 (2006.01); H01L 23/16 (2006.01);
U.S. Cl.
CPC ...
H01L 23/562 (2013.01); H01L 23/16 (2013.01);
Abstract
Creating surface variations on a stiffener in a stack reduces inter-stiffener sticking and stiffener stack tilt in pick and place media. The surface variations provide one or more airgaps that reduce inter-stiffener surface contact, provide space for contaminants and/or provide an averaged surface height due to surface roughness.