CMP active diamond characterization and conditioner wear

Leonard Borucki, Rumin Zhuang, Yun Zhuang, Ara Philipossian, Naoki Rikita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations


Using a pad substitute material, we measure the number of active or working diamonds on a conditioner and find that it is generally a small fraction of the total number on the disc. The number of active diamonds also increases with the applied load and varies somewhat with sliding direction. However, even among the active diamonds, most do relatively little cutting. A few diamonds on a disc do most of the deep bulk cutting, a larger fraction skim the higher areas of the pad surface and most of the diamonds on the disc apparently merely help to support the load. While all of the diamonds that make contact, cutting or otherwise, may show evidence some of mechanical wear, wear of the small number of deep bulk cutting diamonds may be responsible for declining cut rates and for surprisingly low observed conditioner lifetimes.

Original languageEnglish (US)
Title of host publication2007 MRS Spring Meeting
PublisherMaterials Research Society
Number of pages11
ISBN (Print)9781558999510
StatePublished - 2007
Event2007 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 9 2007Apr 13 2007

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2007 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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