Abstract:
Methods for etching a material layer disposed on the substrate using a low temperature etching process along with a subsequent low temperature plasma annealing process are provided. In one embodiment, a method for etching a material layer disposed on a substrate includes transferring a substrate having a material layer disposed thereon into an etching processing chamber, supplying an etching gas mixture into the processing chamber, remotely generating a plasma in the etching gas mixture to etch the material layer disposed on the substrate, and plasma annealing the material layer at a substrate temperature less than 100 degrees Celsius.
Abstract:
Embodiments of methods and an apparatus for utilizing a directed self-assembly (DSA) process on block copolymers (BCPs) to form a defect-free photoresist layer for feature transfer onto a substrate are provided. In one embodiment, a method for performing a dry development process includes transferring a substrate having a layer of block copolymers disposed thereon into an etching processing chamber, wherein at least a first type and a second type of polymers comprising the block copolymers are aggregated into a first group of regions and a second group of regions on the substrate, supplying an etching gas mixture including at least a carbon containing gas into the etching processing chamber, and predominately etching the second type of the polymers disposed on the second groups of regions on the substrate in the presence of the etching gas mixture.