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Simulating massively parallel electron beam inspection for sub-20 nm defects

  • Benjamin D. Bunday
  • , Maseeh Mukhtar
  • , Kathy Quoi
  • , Brad Thiel
  • , Matt Malloy
  • SEMATECH
  • SUNY Polytechnic Institute

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

19 Scopus citations

Abstract

SEMATECH has initiated a program to develop massively-parallel electron beam defect inspection (MPEBI). Here we use JMONSEL simulations to generate expected imaging responses of chosen test cases of patterns and defects with ability to vary parameters for beam energy, spot size, pixel size, and/or defect material and form factor. The patterns are representative of the design rules for an aggressively-scaled FinFET-type design. With these simulated images and resulting shot noise, a signal-to-noise framework is developed, which relates to defect detection probabilities. Additionally, with this infrastructure the effect of detection chain noise and frequency dependent system response can be made, allowing for targeting of best recipe parameters for MPEBI validation experiments, ultimately leading to insights into how such parameters will impact MPEBI tool design, including necessary doses for defect detection and estimations of scanning speeds for achieving high throughput for HVM.

Original languageEnglish
Title of host publicationMetrology, Inspection, and Process Control for Microlithography XXIX
EditorsMartha I. Sanchez, Jason P. Cain
PublisherSPIE
ISBN (Electronic)9781628415261
DOIs
StatePublished - 2015
Event29th Conference on Metrology, Inspection, and Process Control for Microlithography - San Jose, United States
Duration: Feb 23 2015Feb 26 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9424

Conference

Conference29th Conference on Metrology, Inspection, and Process Control for Microlithography
Country/TerritoryUnited States
CitySan Jose
Period02/23/1502/26/15

Keywords

  • EBI
  • JMONSEL
  • SEM
  • defect detection
  • electron-beam defect inspection
  • massively parallel
  • multi-column
  • particle inspection

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