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1. 发明授权

US6165649A Methods for repair of photomasks 失效
公开(公告)号：US6165649A
公开(公告)日：2000-12-26
申请号：US786061
申请日：1997-01-21
申请人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
发明人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
IPC分类号： B23K26/06 , G03F1/74 , H01L21/027 , G03F9/00
CPC分类号： G03F1/74 , B23K26/0624
摘要： A method of repairing defects on masks includes the step of providing a coating on the mask to prevent damage to clear regions of the mask from laser ablation splatter, laser ablation caused quartz pitting, laser deposition staining, and FIB caused gallium staining. The coating is a metal, a polymer, or a carbon material. The coating is formed on clear regions of the mask as well as either over or under the light absorbing material of the mask. A coating comprising a thin copper layer significantly improves imaging with the ion beam while protecting clear regions of the mask from FIB stain. A coating formed of a photosensitive polymer is used to etch opaque defects. While wanted opaque regions adjacent an opaque defect are also etched in this etch step, these created clear defects are then repaired in a subsequent FIB deposition step while a copper coating protects adjacent clear regions from FIB stain. In another embodiment, opaque defects are repaired with a short pulse duration laser without damage to underlying quartz or adjacent clear regions while avoiding the need for a coating.

2. 发明授权

US6090507A Methods for repair of photomasks 有权
标题翻译：修复光掩模的方法
公开(公告)号：US6090507A
公开(公告)日：2000-07-18
申请号：US261638
申请日：1999-03-03
申请人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
发明人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
IPC分类号： B23K26/06 , G03F1/74 , H01L21/027 , G03F9/00
CPC分类号： G03F1/74 , B23K26/0624
摘要： A method of repairing defects on masks includes the step of providing a coating on the mask to prevent damage to clear regions of the mask from laser ablation splatter, laser ablation caused quartz pitting, laser deposition staining, and FIB caused gallium staining. The coating is a metal, a polymer, or a carbon material. The coating is formed on clear regions of the mask as well as either over or under the light absorbing material of the mask. A coating comprising a thin copper layer significantly improves imaging with the ion beam while protecting clear regions of the mask from FIB stain. A coating formed of a photosensitive polymer is used to etch opaque defects. While wanted opaque regions adjacent an opaque defect are also etched in this etch step, these created clear defects are then repaired in a subsequent FIB deposition step while a copper coating protects adjacent clear regions from FIB stain. In another embodiment, opaque defects are repaired with a short pulse duration laser without damage to underlying quartz or adjacent clear regions while avoiding the need for a coating.
摘要翻译：修复掩模缺陷的方法包括在掩模上提供涂层以防止由于激光烧蚀溅射，激光烧蚀引起的石英点蚀，激光沉积染色和FIB引起的镓染色而对掩模的透明区域的损害的步骤。涂层是金属，聚合物或碳材料。涂层形成在掩模的透明区域以及掩模的光吸收材料的上方或下方。包含薄铜层的涂层显着地改善了用离子束的成像，同时保护掩模的清除区域不受FIB染色。由光敏聚合物形成的涂层用于蚀刻不透明缺陷。虽然在该蚀刻步骤中也蚀刻邻近不透明缺陷的不透明区域，然后在随后的FIB沉积步骤中修复这些产生的明确缺陷，而铜涂层保护相邻的清晰区域免受FIB染色。在另一个实施例中，用短脉冲持续时间激光修复不透明缺陷，而不损害下面的石英或相邻的透明区域，同时避免了涂层的需要。

3. 发明授权

US06190836B1 Methods for repair of photomasks 失效
标题翻译：修复光掩模的方法
公开(公告)号：US06190836B1
公开(公告)日：2001-02-20
申请号：US09561560
申请日：2000-04-28
申请人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
发明人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
IPC分类号： G03C500
CPC分类号： G03F1/74 , B23K26/0624
摘要： A method of repairing defects on masks includes the step of providing a coating on the mask to prevent damage to clear regions of the mask from laser ablation splatter, laser ablation caused quartz pitting, laser deposition staining, and FIB caused gallium staining. The coating is a metal, a polymer, or a carbon material. The coating is formed on clear regions of the mask as well as either over or under the light absorbing material of the mask. A coating comprising a thin copper layer significantly improves imaging with the ion beam while protecting clear regions of the mask from FIB stain. A coating formed of a photosensitive polymer is used to etch opaque defects. While wanted opaque regions adjacent an opaque defect are also etched in this etch step, these created clear defects are then repaired in a subsequent FIB deposition step while a copper coating protects adjacent clear regions from FIB stain. In another embodiment, opaque defects are repaired with a short pulse duration laser without damage to underlying quartz or adjacent clear regions while avoiding the need for a coating.
摘要翻译：修复掩模上的缺陷的方法包括在掩模上提供涂层以防止由于激光烧蚀溅射，激光烧蚀引起的石英点蚀，激光沉积染色和FIB引起的镓染色而对掩模的清晰区域的损害的步骤。涂层是金属，聚合物或碳材料。涂层形成在掩模的透明区域以及掩模的光吸收材料的上方或下方。包含薄铜层的涂层显着地改善了用离子束的成像，同时保护掩模的清除区域不受FIB染色。由光敏聚合物形成的涂层用于蚀刻不透明缺陷。虽然在该蚀刻步骤中也蚀刻邻近不透明缺陷的不透明区域，然后在随后的FIB沉积步骤中修复这些产生的明确缺陷，而铜涂层保护相邻的清晰区域免受FIB染色。在另一个实施例中，用短脉冲持续时间激光修复不透明缺陷，而不损害下面的石英或相邻的透明区域，同时避免了涂层的需要。

4. 发明授权

US6156461A Method for repair of photomasks 有权
标题翻译：光掩模修复方法
公开(公告)号：US6156461A
公开(公告)日：2000-12-05
申请号：US504031
申请日：2000-02-14
申请人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
发明人： Brian J. Grenon , Richard A. Haight , Dennis M. Hayden , Michael S. Hibbs , J. Peter Levin , Timothy E. Neary , Raymond E. Rochefort , Dennis A. Schmidt , Jacek G. Smolinski , Alfred Wagner
IPC分类号： B23K26/06 , G03F1/74 , H01L21/027 , G03S9/00
CPC分类号： G03F1/74 , B23K26/0624
摘要： A method of repairing defects on masks includes the step of providing a coating on the mask to prevent damage to clear regions of the mask from laser ablation splatter, laser ablation caused quartz pitting, laser deposition staining, and FIB caused gallium staining. The coating is a metal, a polymer, or a carbon material. The coating is formed on clear regions of the mask as well as either over or under the light absorbing material of the mask. A coating comprising a thin copper layer significantly improves imaging with the ion beam while protecting clear regions of the mask from FIB stain. A coating formed of a photosensitive polymer is used to etch opaque defects. While wanted opaque regions adjacent an opaque defect are also etched in this etch step, these created clear defects are then repaired in a subsequent FIB deposition step while a copper coating protects adjacent clear regions from FIB stain. In another embodiment, opaque defects are repaired with a short pulse duration laser without damage to underlying quartz or adjacent clear regions while avoiding the need for a coating.
摘要翻译：修复掩模上的缺陷的方法包括在掩模上提供涂层以防止由于激光烧蚀溅射，激光烧蚀引起的石英点蚀，激光沉积染色和FIB引起的镓染色而对掩模的清晰区域的损害的步骤。涂层是金属，聚合物或碳材料。涂层形成在掩模的透明区域以及掩模的光吸收材料的上方或下方。包含薄铜层的涂层显着地改善了用离子束的成像，同时保护掩模的清除区域不受FIB染色。由光敏聚合物形成的涂层用于蚀刻不透明缺陷。虽然在该蚀刻步骤中也蚀刻邻近不透明缺陷的不透明区域，然后在随后的FIB沉积步骤中修复这些产生的明确缺陷，而铜涂层保护相邻的清晰区域免受FIB染色。在另一个实施例中，用短脉冲持续时间激光修复不透明缺陷，而不损害下面的石英或相邻的透明区域，同时避免了涂层的需要。

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