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:
Oct. 06, 2009
Filed:
Jun. 27, 2008
John W. Osenbach, Kutztown, PA (US);
Thomas H. Shilling, Macungie, PA (US);
Weidong Xie, Orefield, PA (US);
John W. Osenbach, Kutztown, PA (US);
Thomas H. Shilling, Macungie, PA (US);
Weidong Xie, Orefield, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
Techniques for integrated circuit device fabrication are provided. In one aspect, an integrated circuit device comprises a base, at least one die attached to the base, and a counterbalancing layer on at least a portion of at least one side of the base adapted to compensate for at least a portion of a thermal expansion difference existing between the base and the die. In another aspect, warping of an integrated circuit device comprising at least one die attached to a base is controlled by applying a counterbalancing layer to at least a portion of at least one side of the base adapted to compensate for at least a portion of a thermal expansion difference existing between the base and the die.