3-Phenyl-3,3-ethylenedioxy-1-propyl Sulfonates as Acid Amplifiers To Enhance the Photosensitivity of Positive-Working Photoresists

Autor: Hironori Ohmori, Kunihiro Ichimura, Koji Arimitsu, Hiromitsu Ito, Kazuaki Kudo
Rok vydání: 1999
Předmět:
Zdroj: Chemistry of Materials. 11:2119-2125
ISSN: 1520-5002
0897-4756
DOI: 10.1021/cm990054b
Popis: In the presence of a small amount of acid, 3-phenyl-3,3-ethylenedioxy-1-propyl p-toluenesulfonate autocatalytically decomposed to give p-toluenesulfonic acid both in solution and in a polymer matrix. Such a reaction was successfully applied for the improvement of sensitivity of several positive-working chemical-amplification photoresists. It was revealed that the diffusion of the acid plays the most essential role in the sensitivity enhancement, by determining the addition effect of the acid amplifiers with various arenesulfonates on photosensitivity characteristics.
Databáze: OpenAIRE