"multipoint Force Feedback" Leveling of Massively Parallel Tip Arrays in Scanning Probe Lithography

Hanaul Noh, Goo Eun Jung, Sukhyun Kim, Seong Hun Yun, Ahjin Jo, Se-Jong Kahng, Nam Joon Cho, Sang Joon Cho

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Nanoscale patterning with massively parallel 2D array tips is of significant interest in scanning probe lithography. A challenging task for tip-based large area nanolithography is maintaining parallel tip arrays at the same contact point with a sample substrate in order to pattern a uniform array. Here, polymer pen lithography is demonstrated with a novel leveling method to account for the magnitude and direction of the total applied force of tip arrays by a multipoint force sensing structure integrated into the tip holder. This high-precision approach results in a 0.001 slope of feature edge length variation over 1 cm wide tip arrays. The position sensitive leveling operates in a fully automated manner and is applicable to recently developed scanning probe lithography techniques of various kinds which can enable "desktop nanofabrication." High precision leveling for polymer pen lithography is demonstrated with a 0.001 slope of feature edge length variation over 1 cm wide tip arrays. The approach employs a multipoint force sensing structure in order to take into account the magnitude and direction of the total applied force of the tip array.

Original languageEnglish
Pages (from-to)4526-4531
Number of pages6
JournalSmall
Volume11
Issue number35
DOIs
Publication statusPublished - 2015 Sep 1

Fingerprint

Lithography
Polymers
Scanning
Feedback
Nanolithography
Point contacts
Nanotechnology
Direction compound
Substrates

Keywords

  • dip pen nanolithography
  • leveling
  • lithography
  • polymer pen lithography
  • scanning probe lithography
  • tip arrays

ASJC Scopus subject areas

  • Biomaterials
  • Engineering (miscellaneous)
  • Biotechnology

Cite this

"multipoint Force Feedback" Leveling of Massively Parallel Tip Arrays in Scanning Probe Lithography. / Noh, Hanaul; Jung, Goo Eun; Kim, Sukhyun; Yun, Seong Hun; Jo, Ahjin; Kahng, Se-Jong; Cho, Nam Joon; Cho, Sang Joon.

In: Small, Vol. 11, No. 35, 01.09.2015, p. 4526-4531.

Research output: Contribution to journalArticle

Noh, H, Jung, GE, Kim, S, Yun, SH, Jo, A, Kahng, S-J, Cho, NJ & Cho, SJ 2015, '"multipoint Force Feedback" Leveling of Massively Parallel Tip Arrays in Scanning Probe Lithography', Small, vol. 11, no. 35, pp. 4526-4531. https://doi.org/10.1002/smll.201403736
Noh, Hanaul ; Jung, Goo Eun ; Kim, Sukhyun ; Yun, Seong Hun ; Jo, Ahjin ; Kahng, Se-Jong ; Cho, Nam Joon ; Cho, Sang Joon. / "multipoint Force Feedback" Leveling of Massively Parallel Tip Arrays in Scanning Probe Lithography. In: Small. 2015 ; Vol. 11, No. 35. pp. 4526-4531.
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