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

Claim 13:
14. A method of manufacturing a template, comprising:
preparing a substrate containing quartz and having a surface, the surface including a protrusion and a depression; and
processing the depression,
the processing of the depression, including:
a first step of forming a film on the surface, 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,

wherein the surface further includes a second depression,
a width of the depression is larger than a width of the second depression,
the film further includes a fourth region, the fourth region filling the second depression and being thicker than the second region, and
the second region is removed with each of the first and fourth regions partly remaining.