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. 16, 2007
Filed:
Feb. 27, 2004
John Mckenna Brennan, Wyomissing, PA (US);
Joseph Michael Freund, Fogelsville, PA (US);
John William Osenbach, Kutztown, PA (US);
John McKenna Brennan, Wyomissing, PA (US);
Joseph Michael Freund, Fogelsville, PA (US);
John William Osenbach, Kutztown, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
Power transistor devices and techniques for reducing bowing in such devices are provided. In one aspect, a power transistor device is provided. The power transistor device comprises a substrate, a device film formed on the substrate and an adhesion layer formed on a side of the substrate opposite the device film, wherein at least a portion of the adhesion layer is at least partially segmented. The power transistor device thereby exhibits a reduced amount of bowing relative to an amount of bowing expected without the segmenting of the adhesion layer. The power transistor device may be part of an integrated circuit.