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:
Sep. 18, 2001
Filed:
Sep. 08, 1998
Garold E. Radke, Lebanon, OR (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A print head for ink-jet printing including an orifice plate with an intermediate layer of reinforcement material bonded thereto, an ink barrier layer, and an adhesion promoter located between the intermediate layer and the barrier layer. The adhesion promoter bonds the intermediate layer to the barrier layer. Exemplary adhesion promoters include organosilane compositions, polyacrylic acid, polymethylacrylic acid, and mixtures thereof. Representative intermediate layers include oxidizable metals (e.g. chromium, tantalum, and mixtures thereof) and silicon-containing compositions (e.g. silicon dioxide, silicon nitride, silicon carbide, and mixtures thereof). In a process for making a print head, an adhesion promoter is applied to the orifice plate/intermediate layer combination which is thereafter bonded to the barrier layer using the adhesion promoter. All of these components are secured together through the application of pressure and heat.