-
公开(公告)号：US5027132A
公开(公告)日：1991-06-25
申请号：US401586
申请日：1989-08-31
CPC分类号： G03F7/70633 , G03F7/704 , G03F7/70641 , G03F7/70725 , H04N1/047 , H04N1/10 , H04N2201/0426 , H04N2201/0436 , H04N2201/04729 , H04N2201/04786
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data decription is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
2.发明授权Pattern comparator with substage illumination and polygonal data representation 失效具有子级照明和多边形数据表示的模式比较器
公开(公告)号：US5018210A
公开(公告)日：1991-05-21
申请号：US173778
申请日：1988-03-25
IPC分类号： G06T7/00
CPC分类号： G06T7/001 , G03F7/70616 , G06T2207/20021 , G06T2207/30141 , G06T2207/30148
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US5592211A
公开(公告)日：1997-01-07
申请号：US396358
申请日：1995-02-28
申请人： Vernon R. Porter , William G. Manns , Anthony B. Wood , Jerry D. Merryman , Don J. Weeks , S. Charles Baber , Thomas C. Penn
发明人： Vernon R. Porter , William G. Manns , Anthony B. Wood , Jerry D. Merryman , Don J. Weeks , S. Charles Baber , Thomas C. Penn
CPC分类号： G03F7/70633 , G02B26/10 , G03F7/704 , G03F7/70641 , G06K15/1204
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US5001764A
公开(公告)日：1991-03-19
申请号：US173776
申请日：1988-03-25
CPC分类号： G03F1/84 , G03F7/704 , G03F7/70616 , G03F7/70633 , G03F7/70641 , G03F7/70725
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US4984282A
公开(公告)日：1991-01-08
申请号：US173708
申请日：1988-03-25
IPC分类号： G06T7/00
CPC分类号： G06T7/001 , G03F1/76 , G03F7/70491 , G03F7/7065 , G06T7/0002 , G03F1/84 , G06T2207/20021 , G06T2207/30141 , G06T2207/30148
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to alow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以缩小到较大的目标区域以供查看。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US4969200A
公开(公告)日：1990-11-06
申请号：US173504
申请日：1988-03-25
申请人： William G. Manns , Anthony B. Wood , Michael Gordon , Don J. Weeks , Tom G. Hudiburgh , David A. Norwood
发明人： William G. Manns , Anthony B. Wood , Michael Gordon , Don J. Weeks , Tom G. Hudiburgh , David A. Norwood
CPC分类号： G06K9/3216 , G03F7/704 , G03F7/70633 , G03F7/70641 , G03F7/70725 , G06T7/001 , G06T7/0028 , H01L21/681 , G06T2207/30148
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The data base is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US5046110A
公开(公告)日：1991-09-03
申请号：US173322
申请日：1988-03-25
申请人： Lori A. Carucci , Don J. Weeks , William G. Manns
发明人： Lori A. Carucci , Don J. Weeks , William G. Manns
IPC分类号： G06T7/00
CPC分类号： G06T7/001 , G03F7/7065 , G06T7/0002 , G06T2207/20021 , G06T2207/30141 , G06T2207/30148
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US4991977A
公开(公告)日：1991-02-12
申请号：US173777
申请日：1988-03-25
CPC分类号： G03F7/70633 , B23K26/04 , B23K26/043 , B23K26/046 , G03F7/704 , G03F7/70641 , G03F7/70725
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US5018212A
公开(公告)日：1991-05-21
申请号：US173395
申请日：1988-03-25
IPC分类号： G01N21/956 , G06T7/00
CPC分类号： G06T7/001 , G01N21/95607 , G03F7/70491 , G03F7/7065 , G06T2207/20021 , G06T2207/30141 , G06T2207/30148
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
公开(公告)号：US5095447A
公开(公告)日：1992-03-10
申请号：US617446
申请日：1990-11-21
申请人： William G. Manns , Anthony B. Wood
发明人： William G. Manns , Anthony B. Wood
IPC分类号： G01R31/308 , H04N1/04
CPC分类号： G01R31/308 , H04N1/04 , H04N2201/0426 , Y10S715/965
摘要： A laser pattern inspection and/or writing system which writes or inspects a pattern on a target on a stage, by raster scanning the target pixels. Inspection can also be done by substage illumination with non-laser light. A database, organized into frames and strips, represents an ideal pattern as one or more polygons. Each polygon's data description is contained within a single data frame. The database is transformed into a turnpoint polygon representation, then a left and right vector representation, then an addressed pixel representation, then a bit-mapped representation of the entire target. Most of the transformations are carried out in parallel pipelines. Guardbands around polygon sides are used for error filtering during inspection. Guardbands are polygons, and frames containing only guardband information are sent down dedicated pipelines. Error filtering also is done at the time of pixel comparisons of ideal with real patterns, and subsequently during defect area consolidation. Defect areas are viewed as color overlays of ideal and actual target areas, from data generated during real time. Defect areas can be de-zoomed to allow larger target areas to be viewed. An autofocus keeps the scanning laser beam in focus on the target. The inspection system is used to find fiducial marks to orient the target prior to raster scanning. IC bars are provided with alignment marks for locating each IC bar. Interferometers or glass scale encoders allow the stage position to be known.
摘要翻译： 激光图案检查和/或写入系统，其通过光栅扫描目标像素来写入或检查在舞台上的目标上的图案。 检查也可以通过非激光的分层照明进行。 组织成框架和条带的数据库表示作为一个或多个多边形的理想模式。 每个多边形的数据描述都包含在单个数据帧中。 将数据库转换为转折点多边形表示，然后转换为左和右向量表示，然后转换为寻址像素表示，然后是整个目标的位映射表示。 大多数转换是在并行管道中进行的。 多边形周围的保护带用于检查过程中的错误过滤。 保卫带是多边形，仅包含保护带信息的帧被发送到专用管道。 在理想与实际图案的像素比较时，随后在缺陷区域合并期间，也进行误差滤波。 缺陷区域被视为理想和实际目标区域的颜色叠加，从实时生成的数据。 缺陷区域可以去放大，以允许查看较大的目标区域。 自动对焦将扫描激光束保持在目标上。 检查系统用于在光栅扫描之前找到基准标记来定向目标。 IC条具有用于定位每个IC条的对准标记。 干涉仪或玻璃刻度尺可以让舞台位置知道。
-
-
-
-
-
-
-
-
-
搜索结果
19 条记录 (耗时 0.048 秒)
