Understanding of PS-b-PMMA phase segregation under laser-induced millisecond thermal annealing

Alan G. Jacobs, Clemens Liedel, Christopher K. Ober, Michael O. Thompson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Laser thermal annealing of PS-b-PMMA is shown to modify phase segregation within the milliseconds timeframe at temperatures from the glass transition to far above the order-disorder transition temperature. We report the kinetics of phase segregation of cylinder forming PS-b-PMMA (53.8 kg/mol, fPS = 0.7) as probed by micro-beam grazing incidence small angle X-ray scattering. Structure evolution was probed as a function of peak temperature, time at temperature, and quench rate, with phase segregation readily occurring on millisecond time scales and at peak quench rates up to 107 K/s. The final film morphology is dependent on both the anneal time and the quench rate to ambient. With heating to sufficiently high temperatures, the thermal history is erased yielding a final state is purely dependent on the quench rate.

Original languageEnglish
Title of host publicationAlternative Lithographic Technologies VII
EditorsChristopher Bencher, Douglas J. Resnick
PublisherSPIE
ISBN (Electronic)9781628415254
DOIs
StatePublished - 2015
Externally publishedYes
EventAlternative Lithographic Technologies VII - San Jose, United States
Duration: Feb 23 2015Feb 26 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9423
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAlternative Lithographic Technologies VII
Country/TerritoryUnited States
CitySan Jose
Period02/23/1502/26/15

Keywords

  • GISAXS
  • Laser Spike Annealing
  • LSA
  • ODT
  • Order-Disorder Transition
  • Phase Segregation
  • PS-b-PMMA
  • μGISAXS

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