Abstract
Ultraviolet laser radiation is capable of producing clearly defined mechanical structures in organic polymers, and a spatial resolution in the 1 μm region was recently demonstrated.1 The high absorption coefficients of ultraviolet radiation in some organic materials provides good localization of the deposited energy. Any change in the physical properties of these materials induced by absorption of ultraviolet radiation should have this characteristic, including laser induced electrical conductivity. The electrical patterning of polymers by ultraviolet radiation provides both high spacial resolution and technologically useful changes in the electrical conductivity. Presented herein is the first results concerning the permanent increase of electrical conductivity of polyimide (Kapton) and polybenzimidazole (FBI) induced by KrF laser irradiation at 248 nm.
© 1991 Optical Society of America
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