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:
Feb. 15, 2011
Filed:
Oct. 10, 2007
Joze Eura Antol, Hamburg, PA (US);
John William Osenbach, Kutztown, PA (US);
Ronald James Weachock, Pottsville, PA (US);
Joze Eura Antol, Hamburg, PA (US);
John William Osenbach, Kutztown, PA (US);
Ronald James Weachock, Pottsville, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
It has been found that integrated packages having dies with at least 10 bonding pads separated by a pitch of 65 μm or less are susceptible to corrosion upon wire bonding to these pads and subsequent encapsulation in a passivating material. In particular, crevices are potentially formed between the bonding wire and bonding pad that are not passivated and that promote corrosion. Avoidance of crevice formation through, for example, appropriately choosing the bonding pad and wire configuration substantially avoids such corrosion.