Patent ID: 11931923
Assignee: KIOXIA CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G  H | IPC B  G  H

Claim 0:
1. A method of manufacturing a template, comprising:
forming a first mask layer on a surface of a substrate, the substrate containing quartz, and the first mask layer containing chromium;
forming a second mask layer on a part of the first mask layer containing photoresist;
processing the first mask layer using the second mask layer to form a pattern of the first mask layer;
processing the substrate using the first mask layer with the pattern to form a protrusion and a depression on the surface; and
processing the depression,
the processing of the depression, including:
a first step of forming a film on the surface of the substrate from which the first and second mask layers are removed, the film including a first region and a second region, the first region being provided on the protrusion, and the second region being provided on a bottom of the depression and being thinner than the first region;
a second step of removing the second region with the first region partly remaining to expose the bottom of the depression; and
a third step of processing the exposed part of the depression using a mask made of the remainder of the first region.