Paper Title:
Using Nanoindentation and Nanoscratch to Determine Thin Film Mechanical Properties
  Abstract

This work uses nanoindentation and nanoscratch to measure the mechanical properties of evaporation copper thin films. The thin film is deposited on a silicon wafer substrate by using the physical vapor deposition method provided by a resistive heating evaporator. The mechanical properties are then determined by indentation test and lateral force test produced by nanoindenter and nanoscratch. The results show that, as the copper thin film is 500nm in thickness and the indentation depth increases from 100nm to 400nm, the Young’s modulus increases from 151GPa to 160GPa while the hardness increases from 2.8GPa to 3.5GPa. Moreover, both the Young’s modulus and the hardness decrease as the thickness of the thin film increases. Besides, the nanoscratch results show that the friction factor also increases as the scratch depth increases, and a thinner film thickness makes a larger friction factor. The results represent the substrate has a significant effect on the mechanical properties of the thin films.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
357-360
DOI
10.4028/www.scientific.net/KEM.326-328.357
Citation
R. C. Chang, F. Y. Chen, C. E. Sun, "Using Nanoindentation and Nanoscratch to Determine Thin Film Mechanical Properties", Key Engineering Materials, Vols. 326-328, pp. 357-360, 2006
Online since
December 2006
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Price
$32.00
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