Patent ID: 9054640
Filing Date: 2015-06-09
Classification: G01N,H01L,H03B,H03H

Abstract:
1. A method, of assessing reliability of thin film mechanical properties of materials having thin film deposit configurations, wherein a cantilever resonator composed of a low loss high Q semiconductor substrate wafer, includes an upper part consisting of a cantilever formed in a center of the upper part of the semiconductor substrate wafer and a first wing and a second wing formed on each side of the cantilever, wherein the semiconductor substrate wafer further includes a lower part, wherein the lower part of the semiconductor substrate wafer is connected to the upper part of the semiconductor substrate wafer by a first leg and a second leg, wherein the second part of the semiconductor substrate wafer is clamped to a metallic block having a low coefficient of thermal expansion, and wherein a first electrode connected to the first wing and a second electrode connected to the second wing communicatively coupling an electrostatic actuation device and an electrostatic detection device to the cantilever resonator; the method comprising: determining a measure of stiffness of an elastic material composing an at least one thin film deposition material of a plurality of thin film deposition materials deposited on the cantilever resonator, by: exciting a plurality of vibrations of the cantilever resonator, using one or more of a plurality of excitation methods, including electronic, electrostatic, acoustic, photothermal and mechanical excitation methods; and detecting, reading and recording, using a computer electro-optical device, measurements from a variation in a mechanical resonant frequency, wherein a thickness of the at least one thin film deposition material ranges from a subnanometer thickness measured value to a micrometer thickness measured value, and wherein, after assessing the measure of stiffness of the elastic material, the at least one thin film deposition material ranging from the subnanometer thickness measured value to the micrometer thickness measured value is free of structural deformation and free of structural deconstruction.