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, 2011
Filed:
Mar. 01, 2010
Setho Sing Fee, Singapore, SG;
Lim Thiam Chye, Singapore, SG;
Tongbi Jiang, Boise, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
Some embodiments include methods of assembling integrated circuit packages in which at least two different conductive layers are formed over a bond pad region of a semiconductor die, and in which a conductive projection associated with an interposer is bonded through a gold ball to an outermost of the at least two conductive layers. The conductive layers may comprise one or more of silver, gold, copper, chromium, nickel, palladium, platinum, tantalum, titanium, vanadium and tungsten. In some embodiments, the bond pad region may comprise aluminum, an inner of the conductive layers may comprise nickel, an outer of the conductive layers may comprise gold, the conductive projection associated with the interposer may comprise gold; and the thermosonic bonding may comprise gold-to-gold bonding of the interposer projection to a gold ball, and gold-to-gold bonding of the outer conductive layer to the gold ball. Some embodiments include integrated circuit packages.