The synthesis of PS-SiO2 raspberry structure nanoparticle for CMP slurry

Hongyi Qin, Hojoong Kim, Hoomi Choi, Mingu Kim, Taesung Kim

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

Abstract

The properties of slurry particles are important factor on the polished surface quality in the CMP process. The composite abrasive is an interesting field in the CMP slurry study. And in this paper, we describe a method to synthesize raspberry structure PS-SiO2 composite nanoparticles and prepare the slurry for the wafer polishing. This novel composite abrasive can reduce the roughness and defects by the polishing experiment. Its removal rate is comparable to the commercial SiO2 slurry. The cushioning effect of soft PS core can decrease the excessive mechanical damage caused by hard silica abrasive.

Original languageEnglish
Title of host publicationICPT 2012 - International Conference on Planarization/CMP Technology, Proceedings
PublisherVDE Verlag GmbH
Pages287-290
Number of pages4
ISBN (Electronic)9783800734528
StatePublished - 2012
Event2012 International Conference on Planarization/CMP Technology, ICPT 2012 - Grenoble, France
Duration: 15 Oct 201217 Oct 2012

Publication series

NameICPT 2012 - International Conference on Planarization/CMP Technology, Proceedings

Conference

Conference2012 International Conference on Planarization/CMP Technology, ICPT 2012
Country/TerritoryFrance
CityGrenoble
Period15/10/1217/10/12

Keywords

  • CMP slurry
  • Polystyrene SiO nanoparticle
  • Raspberry structure

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