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.

Date of Patent:
Jan. 20, 2009

Filed:

Mar. 14, 2006
Applicants:

Mark Adam Bachman, Sinking Spring, PA (US);

David L. Crouthamel, Bethlehem, PA (US);

Inventors:

Mark Adam Bachman, Sinking Spring, PA (US);

David L. Crouthamel, Bethlehem, PA (US);

Assignee:

Agere Systems Inc., Allentown, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

An assembly comprises a stiffener, a circuit substrate and an integrated circuit (IC) chip. The stiffener has a surface with a first region and a second region. The circuit substrate covers the first region, while the IC chip overlies at least a portion of each of the first and second regions. Moreover, the assembly further comprises a plurality of first solder bumps and a plurality of second solder bumps. The first solder bumps contact both the IC chip and the circuit substrate. The second solder bumps are larger than the first solder bumps, contact the IC chip and are disposed above the second region of the stiffener.


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