Patent ID: 6919164

Claim:
A lithographic method of producing a patterned layer on a substrate comprising: applying onto a substrate an e-beam sensitive composition, which is an e-beam curable, organic soluble mixture comprising at least one oligomerized cyclobutarene made from a cyclobutarene monomer bridged by organopolysiloxane and at least one photosensitive agent in an amount sufficient to convert said organic soluble mixture to an insoluble mixture upon exposing said mixture to electron beam to produce an e-beam sensitive coating on said substrate; patternwise exposing said coating with an electron beam to produce a coating having exposed and unexposed regions; and contacting a developer and said coating having exposed and unexposed regions to selectively remove said unexposed regions to produce a patterned layer; wherein said patterned layer is a nano-scale patterned layer; and wherein said electron beam dosage is less than about 300 microcoulombs.