Patent ID: 11906899
Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A mask defect repair method comprising:
forming a standard deposition film by charged particle beam-induced deposition before repairing a mask defect of a mask;
measuring a film thickness of the standard deposition film;
correcting calibration data that represents a relationship between an area of a deposition film having a predetermined thickness and an amount of irradiation with charged particle beams based at least in part on the film thickness of the standard deposition film;
moving the mask defect to a position at which irradiation with the charged particle beams takes place; and
emitting the charged particle beams in the amount determined based at least in part on the corrected calibration data on to a portion of the mask at which the mask defect has actually occurred while supplying gas for forming the deposition film on the mask defect to form the deposition film, wherein the standard deposition film is different from the deposition film on the mask defect.