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:
Jul. 19, 2011
Filed:
Dec. 03, 2007
Thomas R. Strand, Corvallis, OR (US);
Manish Giri, Corvallis, OR (US);
Jeremy Donaldson, Corvallis, OR (US);
William A. Keese, Philomath, OR (US);
Mohammed Shaarawi, Corvallis, OR (US);
Randall Orson Willard, Corvallis, OR (US);
Thomas R. Strand, Corvallis, OR (US);
Manish Giri, Corvallis, OR (US);
Jeremy Donaldson, Corvallis, OR (US);
William A. Keese, Philomath, OR (US);
Mohammed Shaarawi, Corvallis, OR (US);
Randall Orson Willard, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of manufacturing a fluid ejection device includes providing a barrier layer and an orifice layer on a substrate, laminating a layer of photo-resist over a substantially planar surface of the orifice layer, forming an orifice in the orifice layer, and forming a counterbore in the layer of photo-resist, with forming a counterbore in the layer of photo-resist including exposing a portion of the substantially planar surface of the orifice layer within the counterbore.