Printing using a structure coated with ultraviolet radiation responsive material

Abstract

The present invention relates to a printing method using a structure coated with ultraviolet radiation responsive material. Wetting and print transfer from a printing patterned transfer surface is enhanced by applying an ultraviolet radiation responsive material to the patterned transfer surface. Ultraviolet activation of the ultraviolet responsive coating is performed during a transfer of printing material to a substrate. The technique increases precision of the printing process and is useful for transfer of printing material to a substrate in order to establish printed circuit components such as circuit traces and printed circuit elements on the substrate. In a particular configuration the ultraviolet radiation responsive material can be made of azobenzene material or free radical initiators.

Description

[0001] Related Patent Applications [0002] The present patent application claims priority to US Provisional Patent Application No. 61 / 071,923, filed May 27, 2008, filed by the present inventors and incorporated by reference into this patent application. technical field [0003] The present disclosure relates generally to contact printing, and more specifically, the present disclosure relates to surface treatments for stamps that can assist in the transfer of printed material from the stamp to a substrate. Background technique [0004] There are two main approaches used to reduce the cost of electronic equipment - improving the packaging efficiency of the integrated circuit (IC) components of the equipment, and increasing cost efficiency through the use of high-volume production methods. To cost-effectively mass-produce thinner flexible polymer electronics, large-area imaging can be an economical production method of choice and will most likely play an important role in poly...

AI Technical Summary

Problems solved by technology

According to the disclosure of this patent, the modifier adsorbed on its surface is not photosensitive, or is not able to change its state under ultraviolet radiation

U.S. Patent No. 6,884,628 discloses multifunctional coatings for use on polymer surfaces, but its application is limited to sensor devices, and it describes coatings that cannot be excited by ultraviolet radiation

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