Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 14, 2017
Patent Application Number
15074563
Date Filed
March 18, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
According to one embodiment, a method for manufacturing a semiconductor device includes forming a first metal nitride film on a side surface of a hole extending in a stacking direction in a stacked body. The method includes forming a second metal nitride film on upper and lower surfaces of second layers and a side surface of the first metal nitride film. The method includes forming metal layers in first air gaps inside the second metal nitride film. The method includes removing the second layers and forming second air gaps between the metal layers. The method includes removing the first metal nitride film exposed to the second air gaps and dividing the first metal nitride film in the stacking direction.
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