Microscopic Mechanisms of Reaction-Coupled Acid Diffusion in Chemically Amplified Photoresists

Z Wang, H Du, H Xin, J Xue, J Zhang… - Chemistry of Materials, 2024 - ACS Publications
Diffusion in photoresists is a fundamental process that significantly impacts micro-nano
manufacturing. However, it often intertwines with chemical reactions, leading to intricate …

Accelerated diffusion following deprotection in chemically amplified resists

CM Bottoms, GE Stein… - The Journal of Physical …, 2022 - ACS Publications
Polymeric chemically amplified resists (CARs) are critical materials for high-throughput
lithographic processes. A photoactivated acid-anion catalyst changes the polymer's …

Tailoring the Wettability and Substrate Adherence of Thin Polymer Films with Surface-Segregating Bottlebrush Copolymer Additives

TS Laws, H Mei, T Terlier, R Verduzco, GE Stein - Langmuir, 2023 - ACS Publications
We developed “reactive” bottlebrush polymers based on styrene (S) and t-butyl acrylate
(tBA) as additives for polystyrene (PS) coatings. The bottlebrush polymers spontaneously …

Ion diffusion in chemically amplified resists

CM Bottoms, T Terlier, GE Stein, M Doxastakis - Macromolecules, 2021 - ACS Publications
The acid-catalyzed deprotection of glassy polymer resins is an important process in
semiconductor lithography. Studies have shown that the reaction kinetics in these materials …

Influence of post exposure bake time on EUV photoresist RLS trade-off

Y Vesters, D De Simone… - Extreme Ultraviolet (EUV) …, 2017 - spiedigitallibrary.org
To achieve high volume manufacturing, EUV photoresists need to push back the" RLS trade-
off" by simultaneously improving Resolution, Line-Width Roughness and Sensitivity …

Enhanced catalyst mobility in chemically amplified resists

CM Bottoms, T Terlier, GE Stein… - … in Patterning Materials …, 2022 - spiedigitallibrary.org
In chemically amplified resists (CARs), it is known that catalyst diffusion is accelerated by the
deprotection reaction. However, the mechanisms that drive this enhancement are not yet …

[PDF][PDF] Modelling nanomechanical effects in advanced lithographic materials and processes

S D'Silva - 2023 - researchgate.net
Optical projection lithography involves the transfer of a photomask pattern onto a polymer
material known as a photoresist. The diffracted light from the exposed photomask is …

Probing ion diffusion in chemically amplified resists through experiments and atomistic simulations

CM Bottoms, T Terlier, GE Stein… - … in Patterning Materials …, 2021 - spiedigitallibrary.org
Catalyst diffusion is a critical component of the pattern formation process in chemically
amplified resists (CARs). In this study, we used a concerted experimental and modeling …

Acid Transport in Chemically Amplified Photoresists

A Patil - 2015 - uh-ir.tdl.org
Chemically amplified resists (CARs) are a class of lithographic materials that enable high-
throughput semiconductor patterning. CARs are comprised of a glassy polymer resin …