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Curing methods yield multiple refractive index of benzocyclobutene polymer film

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Refractive index control of benzocyclobutene (BCB 4024-40) is achieved by facilitating different conditions during the thermal curing of BCB film. Refractive index (RI) change of 1.49% is obtained with curing of BCB film using an oven, while the RI change is 0.1% when the BCB is cured using a hotplate. The two different curing methods exhibit a temperature dependent refractive index change of the BCB photosensitive polymer. By carefully controlling the curing conditions, multiple layers of BCB with different RI can be fabricated, which can then be applied in the fabrication of optical waveguides.

Original languageEnglish
Pages (from-to)534-536
Number of pages3
JournalWorld Academy of Science, Engineering and Technology
Volume50
Publication statusPublished - Feb 2011
Externally publishedYes

Keywords

  • BCB 4024-40
  • Curing method
  • Multiple refractive index
  • Polymers

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