Patent ID: 7751061
Filing Date: 2010-07-06
Classification: G01B,G01N,H01L

Abstract:
1. A non-contact method for evaluating a property of a dielectric material on a microelectronic process workpiece, comprising: measuring a thickness of the dielectric material on the workpiece; irradiating the workpiece with a plurality of infrared (IR) wavelengths; collecting and measuring an IR spectrum from the workpiece; using the measured thickness and at least a portion of the measured IR spectrum of the workpiece and a predetermined correlation between the thickness of dielectric material, IR spectra and at least one of a dielectric constant, the hardness, and Young's Modulus to determine at least one of the dielectric constant, the hardness, and Young's Modulus of the dielectric material; and storing and/or displaying a value of the determined at least one of the dielectric constant, the hardness, and Young's Modulus for the dielectric material of the workpiece.