Quantitative In-Situ Measurement of Asperity Compression During Chemical Mechanical Planarization

Autor: Caprice Gray, Vincent P. Manno, Sriram Anjur, Ara Philipossian, Mansour Moinpour, Chris E. Barns, Daniel Apone, Chris Rogers
Rok vydání: 2005
Předmět:
Zdroj: World Tribology Congress III, Volume 2.
DOI: 10.1115/wtc2005-63805
Popis: Modifications to the Dual Emission Laser Induced Fluorescence (DELIF) procedure used to collect images of the slurry layer between the polishing pad and wafer during Chemical Mechanical Planarization (CMP) have provided a means to attain instantaneous, high spatial resolution images of slurry film thickness. Presented here is a technique to determine the calibration factor that correlates image intensity to slurry film thickness. This presentation will discuss how to determine slurry layer shape near wafer features, pad roughness, and pad compressibility.Copyright © 2005 by ASME
Databáze: OpenAIRE