Optical inspection of photomasks: What's next?

The subject of photomask inspection has received increasing attention over the past few years. Mask makers have come to rely on automatic optical inspection for two reasons. First, it is a necessary means to provide quality assurance to their fabline customers. The fablines will specify a maximum de...

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Main Author Brooks, George W.
Format Conference Proceeding
LanguageEnglish
Published SPIE 10.10.2023
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Abstract The subject of photomask inspection has received increasing attention over the past few years. Mask makers have come to rely on automatic optical inspection for two reasons. First, it is a necessary means to provide quality assurance to their fabline customers. The fablines will specify a maximum defect dimension and a maximum defect density. These specifications can be guaranteed. Second, photomask inspection is a vital link in control of the mask making process itself. The feedback provides excellent information on raw material inputs (i.e., chrome, glass, and resist), on the lithography process, and on handling and cleanliness in the mask shop.
AbstractList The subject of photomask inspection has received increasing attention over the past few years. Mask makers have come to rely on automatic optical inspection for two reasons. First, it is a necessary means to provide quality assurance to their fabline customers. The fablines will specify a maximum defect dimension and a maximum defect density. These specifications can be guaranteed. Second, photomask inspection is a vital link in control of the mask making process itself. The feedback provides excellent information on raw material inputs (i.e., chrome, glass, and resist), on the lithography process, and on handling and cleanliness in the mask shop.
Author Brooks, George W.
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DOI 10.1117/12.3011304
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Notes Conference Location: Santa Clara, CA, United States
Conference Date: 1982-06-08|1982-06-09
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Snippet The subject of photomask inspection has received increasing attention over the past few years. Mask makers have come to rely on automatic optical inspection...
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Title Optical inspection of photomasks: What's next?
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