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. 20, 2014
Filed:
Dec. 21, 2011
Applicants:
Roberto A. Pugliese, Jr., Tangent, OR (US);
Timothy R. Emery, Corvallis, OR (US);
Ed Friesen, Corvallis, OR (US);
Rio Rivas, Corvallis, OR (US);
Inventors:
Roberto A. Pugliese, Jr., Tangent, OR (US);
Timothy R. Emery, Corvallis, OR (US);
Ed Friesen, Corvallis, OR (US);
Rio Rivas, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/05 (2006.01); H01L 21/02 (2006.01); G01D 15/00 (2006.01); G11B 5/127 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an embodiment, a method of fabricating a fluid ejection device includes forming a resistor on the front side of a substrate, depositing a dielectric film on the resistor to protect the resistor from chemical exposure during a slot formation process, and forming a slot in the substrate that extends from the back side to the front side of the substrate.