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Semiconductor devices. Micro-electromechanical devices - Test methods for determining residual stresses of MEMS films. Wafer curvature and cantilever beam deflection methods
Description
Semiconductor devices. Micro-electromechanical devices - Test methods for determining residual stresses of MEMS films. Wafer curvature and cantilever beam deflection methods1 Scope This part of IEC 62047 specifies the test methods to measure the residual stresses of films with thickness in the range of 0,01 m to 10 m in MEMS structures fabricated by wafer curvature or cantilever beam deflection methods. The films should be deposited onto a substrate of known mechanical properties of Youngs modulus and Poissons ratio. These methods are used to determine the residual stresses within thin films deposited on substrate [1] 1.
This method is also applicable to samples containing suspended solids where halogens are adsorbed onto the solid matter (e
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