A theory of pad conditioning for chemical-mechanical polishing

Published

Journal Article

Statistical models are presented to describe the evolution of the surface roughness of polishing pads during the pad-conditioning process in chemical-mechanical polishing. The models describe the evolution of the surface-height probability-density function of solid pads during fixed height or fixed cut-rate conditioning. An integral equation is derived for the effect of conditioning on a foamed pad in terms of a model for a solid pad. The models that combine wear and conditioning are then discussed for both solid and foamed pads. Models include the dependence of the surface roughness on the shape and density of the cutting tips used in the conditioner and on other operating parameters. Good agreement is found between the model, Monte Carlo simulations and with experimental data. © 2004 Kluwer Academic Publishers.

Full Text

Duke Authors

Cited Authors

  • Borucki, LJ; Witelski, T; Please, C; Kramer, PR; Schwendeman, D

Published Date

  • December 1, 2004

Published In

Volume / Issue

  • 50 / 1

Start / End Page

  • 1 - 24

International Standard Serial Number (ISSN)

  • 0022-0833

Digital Object Identifier (DOI)

  • 10.1023/B:ENGI.0000042116.09084.00

Citation Source

  • Scopus