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:
Apr. 12, 2016
Filed:
Oct. 23, 2014
United Test and Assembly Center Ltd., Singapore, SG;
Kriangsak Sae Le, Bangkok, TH;
Chee Kay Chow, Singapore, SG;
UTAC HEADQUARTERS PTE. LTD., Singapore, SG;
Abstract
A method of forming semiconductor assemblies is disclosed. The method includes providing an interposer with through interposer vias. The interposer includes first and second surfaces. The through interposer vias extend from the first surface to the second surface of the interposer. The interposer with the through interposer vias enable attachment and electrical coupling of a die having very fine contact pitch to an external device having relatively larger contact pitch. At least a first die is mounted on at least one die attach region on the first surface of the interposer. The first die comprises a first surface with first conductive contacts thereon. The interposer comprises material with CTE similar to that of the first die. The first conductive contacts of the first die are coupled to the through interposer vias on the first surface of the interposer. A bonding process which does not require a reflow process is performed to form connections between the first die and interposer.