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:
Jun. 30, 2009
Filed:
Jul. 25, 2005
Arjang Fartash, Corvallis, OR (US);
Arjang Fartash, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A fluid ejector head is manufactured. Sidewalls of at least one fluid ejection chamber are defined about at least one fluid drop generator disposed over a substrate. At least one bore is created over the at least one fluid ejection chamber. The at least one bore has a first nozzle surface proximate to the at least one fluid ejection chamber, and a second nozzle surface distal to the at least one fluid ejection chamber. An initial deposit of a protective layer material is deposited at a low substrate bias voltage through the at least one bore. A portion of the initial deposit of the protective layer material is redistributed on the sidewalls at a high substrate bias voltage. An inorganic protective layer is formed on the sidewalls of the at least one fluid ejection chamber and on a portion of the first nozzle surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile