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:
Nov. 13, 2001
Filed:
Aug. 01, 2000
Bun Chay Te, Singapore, SG;
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
An improved printhead for easier manufacturing is disclosed. The printhead has a non-uniformly thick electroformed orifice plate having orifices electroformed therethrough. This electroformed orifice plate has a thin area and a thick area. The thick area defines projections from the thin area. The printhead also has a printhead die that includes transducers on a substrate. Each transducer matches to one of the orifices of the orifice plate. The printhead also has a barrier layer on the substrate that is developed to define ink channels and ink chambers for delivering ink to the transducers. The barrier layer is also developed to define a locator. When the orifice plate is attached to the printhead die during assembly, the projections on the orifice plate mesh with the locator on the barrier layer to substantially hold the orifice plate and the printhead die in place to align each orifice to a corresponding transducer.