Method and Device for Particle Measurement
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United States of America Patent
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Aug 7, 2015
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Aug 19, 2014
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Provided are a method and a device that can measure sputtered particles discharged by sputtering with high precision within a short time. A measuring device has a measuring section that measures a ratio between an equivalent value of the number of ion particles discharged from a target by sputtering caused by a pulsed electric discharge and an equivalent value of the number of neutral particles discharged from the target by the pulsed electric discharge. The ratio between the number of the ion particles and the number of the neutral particles discharged from the target by the sputtering can be regarded as one of factors affecting quality of a vapor-deposited film, a film growth rate and an etching rate. Thus, a factor affecting the quality of the vapor-deposited film, the film growth rate and the etching rate can be grasped and also controlled.
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