Patent ID: 8922774
Filing Date: 2014-12-30
Classification: G03F

Abstract:
1. A method of manufacturing a device, the method comprising: a first step of forming a circuit pattern and an alignment mark on a substrate; and a second step of measuring a position of the alignment mark, positioning the substrate based on the measured position, and forming a circuit pattern on the positioned substrate, wherein the alignment mark includes a first linear pattern arranged on one side of and parallel to a first straight line, a second linear pattern arranged on the other side of and parallel to the first straight line, a third linear pattern arranged on one side of and parallel to a second straight line with a direction thereof being different from a direction of the first straight line, and a fourth linear pattern arranged on the other side of and parallel to the second straight line, wherein the first step includes a determination step of determining a total number of the third linear pattern and the fourth linear pattern to be formed, and a total number of the first linear pattern and the second linear pattern to be formed, in accordance with a first required alignment precision in a direction along the first straight line, and a second required alignment precision in a direction along the second straight line, respectively, and wherein the second step measures the position of the alignment mark in the direction along the first straight line based on positions of the third linear pattern and the fourth linear pattern, and measures the position of the alignment mark in the direction along the second straight line based on positions of the first linear pattern and the second linear pattern.