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Gel formation theory approach for the modelling of negative chemically amplified e-beam resists

  • G. Patsis
  • , I. Raptis
  • , N. Glezos
  • , P. Argitis
  • , M. Hatzakis
  • , C. J. Aidinis
  • , M. Gentili
  • , R. Maggiora
  • Demokritos National Centre for Scientific Research
  • National and Kapodistrian University of Athens
  • National Research Council of Italy

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Gel formation theory is applied for the interpretation of experimental lithographic results of epoxy based negative e-beam resists. The success of different theoretical models in fitting experiments depends upon the value of concentration of the photoacid generator (PAG) and the thermal processing conditions. The chemical composition of each specific system, the sensitivity and the range of acid diffusion are important parameters in the analysis. It is concluded that existing theories with an appropriate interpretation explain satisfactorily experimental results in a given range of resist composition and processing parameters. However in some cases a model which would include more explicitly the reaction-diffusion mechanism is required.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalMicroelectronic Engineering
Volume35
Issue number1-4
DOIs
StatePublished - Feb 1997
Externally publishedYes

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