Patent ID: 9117888
Filing Date: 2015-08-25
Classification: H01L

Abstract:
1. A method for manufacturing an integrated circuit device, comprising: forming a conductive film on a substrate; forming a plurality of core members extending in one direction on the conductive film, each of the plurality of core members including a protrusion protruding in a width direction or a recess receding in the width direction formed in one side surface of a first portion and a protrusion protruding in the width direction or a recess receding in the width direction formed in one other side surface of a second portion; making the core members finer; forming sidewalls on side surfaces of the core members; removing the core members; patterning the conductive film into a plurality of interconnects by performing etching using the sidewalls as a mask, a bent portion being formed in one location of each of the plurality of interconnects to curve into a protruding configuration, the plurality of interconnects having a first interconnect and a second interconnect, the second interconnect being adjacent the first interconnect and disposed in the direction of the protrusion of the bent portion of the first interconnect as viewed from the first interconnect; separating an opposing portion of the second interconnect opposing the bent portion of the first interconnect from portions of the second interconnect on two sides of the opposing portion while separating the opposing portion from the bent portion of the second interconnect; and forming a contact via to connect to the bent portion.