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:
Mar. 02, 2004
Filed:
Apr. 17, 2002
Applicant:
Inventor:
Robert M. Hilton, Burpengary, AU;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/144 ; H01L 2/148 ; H01L 2/150 ;
U.S. Cl.
CPC ...
H01L 2/144 ; H01L 2/148 ; H01L 2/150 ;
Abstract
A flip-chip package and packaging method use a substrate having bond pad spacing that matches terminal spacing on a chip at an elevated temperature, such as the temperature of the chip during bonding to the substrate, the melting point of solder used on the chip, a temperature within the range of thermal cycling of the chip, or an operating temperature of the chip. Matching spacing at an elevated temperature permits a better alignment at the bonding temperature for formation of stronger bonds.