Patent Number: 8,303,832

Title: Solid inks for masks for printed circuit boards and other electronic devices

Abstract: A printed mask derived from a composition comprised of at least one compound including at least one alkaline-hydrolyzable group, at least one compound including at least one ethylene oxide group and at least one ultraviolet radiation blocking agent, wherein the printed mask is removable using an alkaline solution in about 30 seconds or less.

Inventors: Torres; Francisco E. (San Jose, CA), Chang; Norine E. (Menlo Park, CA), Shrader; Eric J. (Belmont, CA), Jaeger; C. Wayne (Lake Oswego, OR)

Assignee: Palo Alto Research Center Incorporated

International Classification: B44C 1/22 (20060101)

Expiration Date: 2021-11-06 0:00:00