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:
Jan. 01, 2002
Filed:
Mar. 02, 2000
Applicant:
Inventors:
Miguel Albert Capote, Carlsbad, CA (US);
Xiaoqi Zhu, San Diego, CA (US);
Robert Vinson Burress, San Diego, CA (US);
Yong-Joon Lee, Oceanside, CA (US);
Assignee:
Miguel Albert Capote, Carlsbad, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/328 ; H01L 2/329 ;
U.S. Cl.
CPC ...
H01L 2/328 ; H01L 2/329 ;
Abstract
A flip-chip device and process for fabricating the device employs a multilayer encapsulant that includes a first portion encapsulant having a coefficient of thermal expansion of at most 30 ppm/° C. and an elastic modulus of 2-20 GPa and a second portion comprising a polymer flux having a coefficient of thermal expansion that may exceed 30 ppm/° C.