Patent ID: 9018076
Filing Date: 2015-04-28
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor storage device, the method comprising: forming element isolation trenches in a semiconductor substrate, the element isolation trenches identifying active regions arranged in a matrix pattern extending in a first direction and a second direction, each of the active regions including a transistor region and a capacitor region; filling the element isolation trenches with an element isolation insulating film; removing at least a part of the element isolation insulating film in the element isolation trenches provided on both sides of the capacitor region to expose a sidewall of at least one of the active regions; forming a dielectric film and a first conductive film on the at least one active regions and on the sidewall of the at least one of the active regions; etching the first conductive film to form first conductive patterns in the transistor region which is divided in units of the plurality of active regions arranged side by side in the second direction; forming a second conductive pattern in the capacitor regions; forming a lower interlayer insulating film to cover the first conductive pattern and the second conductive pattern; forming a first wiring layer on the lower interlayer insulating film; and forming first patterns adjacent to each other, one end of the divided first conductive pattern being provided between the first patterns.