Invention Grant
- Patent Title: Method and apparatus for ascertaining a repair shape for processing a defect of a photolithographic mask
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Application No.: US16563731Application Date: 2019-09-06
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Publication No.: US11079674B2Publication Date: 2021-08-03
- Inventor: Jens Oster , Markus Waiblinger
- Applicant: Carl Zeiss SMT GmbH
- Applicant Address: DE Oberkochen
- Assignee: Carl Zeiss SMT GmbH
- Current Assignee: Carl Zeiss SMT GmbH
- Current Assignee Address: DE Oberkochen
- Agency: Fish & Richardson P.C.
- Priority: DE102017203841.1 20170308
- Main IPC: G03F1/74
- IPC: G03F1/74 ; G03F1/36 ; G03F1/72 ; G03F1/70

Abstract:
The present invention relates to a method for ascertaining a repair shape for processing at least one defect of a photolithographic mask including the following steps: (a) determining at least one correction value for the repair shape of the at least one defect, wherein the correction value takes account of a position of at least one pattern element of the photolithographic mask, said at least one pattern element not contacting the at least one defect; and (b) correcting the repair shape by applying the at least one correction value.
Public/Granted literature
- US20190391482A1 METHOD AND APPARATUS FOR ASCERTAINING A REPAIR SHAPE FOR PROCESSING A DEFECT OF A PHOTOLITHOGRAPHIC MASK Public/Granted day:2019-12-26
Information query
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