Patent ID: 9502306
Filing Date: 2016-11-22
CPC Classification: H01L

Claim Text:
1. A pattern formation method of forming a pattern on a substrate by partially removing a line and space pattern formed on the substrate, comprising: a first formation step of forming a first layer including a plurality of first openings on the line and space pattern; a second step of forming, on the first layer, a second layer including a second opening for exposing one or more first openings, which are used to partially remove the line and space pattern, among the plurality of first openings; and a removing step of partially removing the line and space pattern through the second opening and the one or more first openings, wherein the plurality of first openings are located on a plurality of lines of the line and space pattern, wherein a plurality of first openings on one line are arranged at an interval twice that of a pitch of the line and space pattern along a direction in which the one line extends, and wherein an arrangement of a plurality of first openings on one of two adjacent lines and an arrangement of a plurality of first openings on the other of the two adjacent lines are shifted with each other by the pitch in the direction.