Hi Kim,

Here is a place to start for resists sensitive to longer wavelengths, IR to
blue.

http://www.laserfocusworld.com/display_article/28334/12/none/none/News/Printing-
benefits-from-new-technologies

They aren't "semiconductor" resists, but are used in the publishing industry.
(Let's let your application be our little secret)...

Best,

Dean Hopkins
Extraordinarily skilled and excessively modest MEMS process engineer
Silicon Valley, USA
(408) 426-0501