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:
May. 22, 2012
Filed:
Aug. 07, 2008
Applicant:
Simon Jonathan Stacey, Ipswich, GB;
Inventor:
Simon Jonathan Stacey, Ipswich, GB;
Assignee:
Cambridge Silicon Radio Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of providing connections to a chip having contact pads on the surface thereof, comprising: locating a discrete solder element on each pad; and melting the discrete solder elements so as to cause each of them to adhere to the respective pad, thereby forming a solder bump extending from the surface of the chip; wherein the size of each discrete solder element relative to the area of the pad on which it is located is such that the height of each bump is less than 70% of the diameter of the solder element that formed it.