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. 09, 2019
Filed:
Apr. 26, 2017
Texas Instruments Incorporated, Dallas, TX (US);
Jaimal M. Williamson, McKinney, TX (US);
Nima Shahidi, Dallas, TX (US);
Jose Carlos Arroyo, Allen, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
An assembly () comprising a semiconductor device () with solderable bumps (); a substrate () with a layer () of a first insulating compound and an underlying metal layer () patterned in contact pads () and connecting traces (), the insulating layer having openings () to expose the surface () and sidewalls () of underlying traces; the device bumps soldered onto the contact pads, establishing a gap () between device and top insulating layer; and a second insulating compound () cohesively filling the gap and the second openings, thereby touching the underlying traces, the second insulating compound having a higher glass transition temperature, a higher modulus, and a lower coefficient of thermal expansion than the first insulating compound.