Modified kinematic model for predicting contact points of conditioner in CMP

Jihye Choi, Eungcher Kim, Cheolmin Shin, Yinhua Jin, Taesung Kim

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

Abstract

The conditioning process with diamond conditioners is an important role in maintaining CMP performance constant. The conditioning process maintains the surface roughness of the pad and uniformity of the pad profile, resulting in stable removal rate and low WIWNU of the wafer. The conditioning factor is controlled by three mechanical movements: pad / conditioner rotation, conditioner sweep arm movement. The conditioning performance can be changed by controlling the rotation conditions and sweep angle of the motion. In order to find optimal conditioning process condition, it is necessary to predict the pad profile tendency through simulation at various conditioning conditions. In this study, counting contacting points was applied to kinematic model of CMP conditioning process to predict pad profile. This model will be based on prediction of pad profile.

Original languageEnglish
Title of host publicationICPT 2017 - International Conference on Planarization/CMP Technology
PublisherVDE Verlag GmbH
Pages24-26
Number of pages3
ISBN (Electronic)9783800744626
StatePublished - 2017
Event2017 International Conference on Planarization/CMP Technology, ICPT 2017 - Leuven, Belgium
Duration: 11 Oct 201713 Oct 2017

Publication series

NameICPT 2017 - International Conference on Planarization/CMP Technology

Conference

Conference2017 International Conference on Planarization/CMP Technology, ICPT 2017
Country/TerritoryBelgium
CityLeuven
Period11/10/1713/10/17

Keywords

  • Chemical mechanical planarization
  • Conditioning process
  • Kinematic analysis
  • Pad cut rate
  • Pad profile

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