METHOD FOR PRODUCING SEMICONDUCTOR DEVICE
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United States of America Patent
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Aug 18, 2017
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Jul 14, 2014
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Abstract
A method for producing a semiconductor device includes depositing an oxide film containing an impurity having a first conductivity type on a substrate. A nitride film and an oxide film containing an impurity having a second conductivity type different from the first conductivity type are deposited. The oxide film having the first conductivity type, the nitride film, and the oxide film having the second conductivity type are etched to form a contact hole. Epitaxial growth is performed in the contact hole to form a pillar-shaped silicon layer. The nitride film is removed and a metal is deposited to form an output terminal.
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