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:
May. 19, 2009
Filed:
Jul. 17, 2008
Moises Cases, Austin, TX (US);
Bradley D. Herrman, Cary, NC (US);
Kent B. Howieson, Austin, TX (US);
Erdem Matoglu, Austin, TX (US);
Bhyrav M. Mutnury, Austin, TX (US);
Pravin S. Patel, Cary, NC (US);
Nam H. Pham, Round Rock, TX (US);
Caleb J. Wesley, Winston Salem, NC (US);
Moises Cases, Austin, TX (US);
Bradley D. Herrman, Cary, NC (US);
Kent B. Howieson, Austin, TX (US);
Erdem Matoglu, Austin, TX (US);
Bhyrav M. Mutnury, Austin, TX (US);
Pravin S. Patel, Cary, NC (US);
Nam H. Pham, Round Rock, TX (US);
Caleb J. Wesley, Winston Salem, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Methods and systems for reducing noise coupling in high-speed digital systems. Exemplary embodiments include a method, including etching a plurality of high speed signal traces onto a core insulating layer, forming trenches on respective sides of the plurality of high speed signal traces, thereby removing insulating material adjacent to the plurality of high speed signal traces and forming pedestals having remaining insulating material, the plurality of high speed signal traces disposed on and coupled to the remaining insulating material, coupling pre-preg material on the high speed signal traces, removing the pre-preg material adjacent the trenches, thereby retaining the pre-preg material aligned with the high speed signal traces, and heating and pressing a core layer to the pre-preg layer, and heating and pressing the pre-preg layer to the core insulating layer.