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:
Aug. 01, 2006
Filed:
Oct. 31, 2001
William B. Connors, Corvallis, OR (US);
Terry E Mcmahon, Corvallis, OR (US);
Donald W Schulte, Corvallis, OR (US);
Keith Moore, Albany, OR (US);
William B. Connors, Corvallis, OR (US);
Terry E McMahon, Corvallis, OR (US);
Donald W Schulte, Corvallis, OR (US);
Keith Moore, Albany, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The present invention includes as one embodiment a printhead having a circuit with plural resistors and a power bus. The printhead includes a metal stack formed within the circuit, which is comprised of a first metal layer and a second metal layer and at least one power via. The power via is formed within the circuit as an interface between the first metal layer and the second metal layer and acts as a corrosion separation barrier between of the resistors and the power bus.