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:
Mar. 13, 2001
Filed:
Mar. 23, 1999
James C. Zesch, Santa Cruz, CA (US);
Calvin F. Quate, Stanford, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An acoustic lens array fabrication process includes the formation of a microlens array mold stamper through the melting of a photoresist resin deposited on formed pedestals of a substrate. Heating of the resin causes formation of semi-spherical photoresist mounds. A further processing step, such as reactive ion etching, is used to transfer the geometry of the photoresist mounds to the substrate material, thereby forming a microlens mold stamper with convex mounds. The microlens mold stamper is then pressed into an upper surface of a acoustic ink print head substrate heated to a predetermined temperature, allowing the convex mounds to form concave impressions in the acoustic ink print head substrate, thereby forming the microlens array.