Improved estimation of the resistivity of pure copper and electrical determination of thin copper film dimensions

Improved values for the resistivity, rho, of pure, bulk copper from 50 to 1200 K, and their confidence intervals, are developed by extending the analysis of Matula. A recommended value for d rho /dT and its confidence interval in the temperature range of 290-425 K is developed for use with Matthiessen's rule to calculate the electrical thickness of thin copper films and the cross-sectional area of copper lines from resistance measurements at two temperatures. Error analyses are used to estimate the uncertainty with which the electrical thickness and cross-sectional area can be determined. Values for the temperature coefficient of resistance of pure, bulk copper are also provided. (C) 2001 Elsevier Science Ltd. All rights reserved.