Patent ID: 9054132
Filing Date: 2015-06-09
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor device comprising: forming a stacked body on a substrate, the stacked body including a select gate and an insulating layer, the insulating layer being provided on the select gate; forming a hole piercing the stacked body; forming a first insulating film on a side wall of the hole; forming a channel body on a side wall of the first insulating film; forming a second insulating film sealing the hole near an interface of the insulating layer and the select gate, the second insulating film being provided on a side wall of the channel body with a space left in the hole above the select gate and having a film thickness in a side wall portion surrounding the space thinner than a film thickness in a bottom portion sealing the hole; burying a semiconductor film in the space; and forming a conductive film in contact with the channel body on an inside of the channel body in the hole on the semiconductor film.