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:
Nov. 17, 2009
Filed:
Aug. 18, 2005
Applicant:
James Sheats, Palo Alto, CA (US);
Inventor:
James Sheats, Palo Alto, CA (US);
Assignee:
Intelleflex Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01); H01L 21/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor chip packaging on a flexible substrate is disclosed. The chip and the flexible substrate are provided with corresponding raised and indented micron-scale contact pads with the indented contact pads partially filled with a liquid amalgam. After low temperature amalgam curing, the chip and the substrate form a flexible substrate IC packaging with high conductivity, controllable interface layer thickness, micron-scale contact density and low process temperature. Adhesion between the chip and the substrate can be further enhanced by coating other areas with non-conducting adhesive.