Patent ID: 11966163
Assignee: LG CHEM, LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 3:
4. A method of manufacturing an imprinting photomask, the method comprising:
forming a light blocking layer on a transparent substrate;
forming a dry film resist pattern on the light blocking layer and corresponding to the light blocking pattern; and
forming a light blocking pattern by etching the light blocking layer by using the dry film resist pattern as a mask,
wherein a thickness of the light blocking pattern is 0.1 μm to 1 μm and a sum of a thickness of the light blocking pattern and a thickness of the dry film resist pattern is 20 μm to 50 μm,
wherein a ratio of the sum of the thickness of the light blocking pattern and the thickness of the dry film resist pattern to a distance between adjacent portions of the light blocking patterns is 1 or more, and
wherein a distance between adjacent portions of the light blocking pattern is 5 μm to 30 μm or less.