Three dimensional assembly in directed self-assembly of block copolymers

Tamar Segal-Peretz, Chun Zhou, Jiaxing Ren, Takahiro Dazai, Leonidas E. Ocola, Ralu N.S. Divan, Paul F. Nealey

Research output: Contribution to journalArticlepeer-review

Abstract

The three-dimensional assembly of poly (styrene-b-methyl methacrylate) (PS-b-PMMA) in chemoepitaxy and graphoepitaxy directed self-assembly (DSA) was investigated using scanning transmission electron microscopy (STEM) tomography. The tomographic characterization revealed hidden morphologies and defects at the BCP- chemical pattern interface in lamellar DSA, and probed the formation of cylinders at the bottom of cylindrical DSA for contact hole shrink. Future work will include control over 3D assembly in sub-10 nm processes.

Original languageEnglish
Pages (from-to)653-657
Number of pages5
JournalJournal of Photopolymer Science and Technology
Volume29
Issue number5
DOIs
StatePublished - 2016
Externally publishedYes

Keywords

  • Block copolymer
  • Contact hole
  • Directed self-assembly
  • Lithography
  • Metrology
  • Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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