Block copolymers for DSA in the 100 Å regime

Abstract

Block copolymers with lines and spaces in the 100 Å regime have been oriented using a perfectly neutral top coat and bottom coat and these structures have been successfully developed with RIE to provide high aspect ratio topographic features. Under these conditions, the materials can be annealed in less than 60 seconds. Future work will be directed toward continued increases in χ and development of simple and efficient processes for orienting these structures.