Measurement method, manufacturing method of device, and measurement system

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United States of America Patent

PATENT NO 9972547
SERIAL NO

15252429

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Abstract

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According to one embodiment, there is provided a measurement method. The method includes measuring an amount of overlay shift between a first layer and a second layer using a first overlay mark and a second overlay mark. The first layer is provided as a layer including the first overlay mark above a first substrate. The second layer is provided as a layer including the second overlay mark above the first overlay mark. The method includes acquiring a parameter related to asymmetry of a shape of the second overlay mark. The method includes obtaining an amount of correction with respect to a measured value of the amount of overlay shift based on the acquired parameter and the measured amount of overlay shift.

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Patent Owner(s)

Patent OwnerAddress
KIOXIA CORPORATION1-21 SHIBAURA 3-CHOME MINATO-KU TOKYO 108-0023

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sho, Koutarou Yokkaichi, JP 11 46

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