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11. 发明授权

US07981576B2 Method and apparatus for performing dark field double dipole lithography (DDL) 有权
标题翻译：用于进行暗场双偶极子光刻（DDL）的方法和装置
公开(公告)号：US07981576B2
公开(公告)日：2011-07-19
申请号：US12890494
申请日：2010-09-24
申请人： Duan-Fu Stephen Hsu , Sangbong Park , Douglas Van Den Broeke , Jang Fung Chen
发明人： Duan-Fu Stephen Hsu , Sangbong Park , Douglas Van Den Broeke , Jang Fung Chen
IPC分类号： G03F1/00 , G03F1/14 , G06F17/50
CPC分类号： G03F1/36 , G03F1/70 , G03F7/70125 , G03F7/70466
摘要： A method of generating complementary masks for use in a dark field double dipole imaging process. The method includes the steps of identifying a target pattern having a plurality of features, including horizontal and vertical features; generating a horizontal mask based on the target pattern, where the horizontal mask includes low contrast vertical features. The generation of the horizontal mask includes the steps of optimizing the bias of the low contrast vertical features contained in the horizontal mask; and applying assist features to the horizontal mask. The method further includes generating a vertical mask based on the target pattern, where the vertical mask contains low contrast horizontal features. The generation of the vertical mask includes the steps of optimizing the bias of low contrast horizontal features contained in the vertical mask; and applying assist features to the vertical mask.
摘要翻译：一种产生用于暗场双偶极成像过程的互补掩模的方法。该方法包括以下步骤：识别具有多个特征的目标图案，包括水平和垂直特征; 基于目标图案生成水平掩模，其中水平掩模包括低对比度垂直特征。水平掩模的生成包括优化包含在水平掩模中的低对比度垂直特征的偏压的步骤; 并将辅助特征应用于水平掩模。该方法还包括基于目标图案生成垂直掩模，其中垂直掩模包含低对比度水平特征。垂直掩模的产生包括优化垂直掩模中包含的低对比度水平特征的偏差的步骤; 并将辅助特征应用于垂直掩模。

12. 发明授权

US07434195B2 Method for performing full-chip manufacturing reliability checking and correction 有权
标题翻译：执行全芯片制造可靠性检查和校正的方法
公开(公告)号：US07434195B2
公开(公告)日：2008-10-07
申请号：US11225888
申请日：2005-09-14
申请人： Michael Hsu , Thomas Laidig , Kurt E. Wampler , Duan-Fu Stephen Hsu , Xuelong Shi
发明人： Michael Hsu , Thomas Laidig , Kurt E. Wampler , Duan-Fu Stephen Hsu , Xuelong Shi
IPC分类号： G06F17/50 , G06K9/00 , G03F1/00
CPC分类号： G03F7/705 , G03F1/36 , G03F7/70433 , G03F7/70441
摘要： A method of generating a mask for use in an imaging process pattern. The method includes the steps of: (a) obtaining a desired target pattern having a plurality of features to be imaged on a substrate; (b) simulating a wafer image utilizing the target pattern and process parameters associated with a defined process; (c) defining at least one feature category; (d) identifying features in the target pattern that correspond to the at least one feature category, and recording an error value for each feature identified as corresponding to the at least one feature category; and (e) generating a statistical summary which indicates the error value for each feature identified as corresponding to the at least one feature category.
摘要翻译：一种生成用于成像处理模式的掩模的方法。该方法包括以下步骤：（a）获得具有要在基底上成像的多个特征的期望目标图案; （b）使用目标图案模拟晶片图像并处理与定义的工艺相关的参数; （c）定义至少一个要素类别; （d）识别与所述至少一个特征类别相对应的所述目标图案中的特征，以及记录与所述至少一个特征类别相对应的每个特征的错误值; 和（e）生成统计摘要，其指示被识别为对应于所述至少一个特征类别的每个特征的误差值。

13. 发明授权

US06875545B2 Method of removing assist features utilized to improve process latitude 有权
标题翻译：消除辅助功能的方法，以改善过程的纬度
公开(公告)号：US06875545B2
公开(公告)日：2005-04-05
申请号：US10305364
申请日：2002-11-27
申请人： Markus Franciscus Antonius Eurlings , Jang Fung Chen , Duan-Fu Stephen Hsu
发明人： Markus Franciscus Antonius Eurlings , Jang Fung Chen , Duan-Fu Stephen Hsu
IPC分类号： G03F1/00 , G03F7/20 , H01L21/027 , G02B31/00
CPC分类号： G03F7/70125 , G03F1/36 , G03F1/70 , G03F7/70441 , G03F7/70466
摘要： A method of transferring a lithographic pattern onto a substrate by use of a lithographic apparatus. The method includes the steps of: (1) defining features to be printed on the substrate; (2) determining which of the features require assist features to be disposed adjacent thereto in order for the features to be printed within defined resolution limits; (3) generating a mask containing the features to be printed and the assist features; (4) performing a first illumination process so as to print the features on the substrate, the first illumination process resulting in the partial printing of the assist features on the substrate; and (5) performing a second illumination process so as to reduce the amount of the assist features printed on the substrate; the second illumination process entails the step of performing a quadrapole illumination.
摘要翻译：通过使用光刻设备将光刻图案转印到基板上的方法。该方法包括以下步骤：（1）定义要印刷在基底上的特征; （2）确定哪些特征要求辅助特征与其邻近设置，以使特征被打印在限定的分辨率限度内; （3）产生包含要印刷的特征和辅助特征的掩模; （4）执行第一照明处理以便在所述基板上打印所述特征，所述第一照明处理导致所述辅助特征部分地印刷在所述基板上; 和（5）执行第二照明处理以减少印刷在基板上的辅助特征量; 第二照明处理需要执行四极照明的步骤。

14. 发明授权

US08111921B2 Method and apparatus for performing model-based OPC for pattern decomposed features 有权
标题翻译：用于模式分解特征执行基于模型的OPC的方法和装置
公开(公告)号：US08111921B2
公开(公告)日：2012-02-07
申请号：US11898646
申请日：2007-09-13
申请人： Duan-Fu Stephen Hsu , Jung Chul Park , Douglas Van Den Broeke , Jang Fung Chen
发明人： Duan-Fu Stephen Hsu , Jung Chul Park , Douglas Van Den Broeke , Jang Fung Chen
IPC分类号： G06K9/00 , G06F17/50 , H04N7/16
CPC分类号： G06T7/0004 , G03F1/36 , G03F1/70 , G03F7/70466 , G03F7/70475
摘要： A method for decomposing a target circuit pattern containing features to be imaged into multiple patterns. The process includes the steps of separating the features to be printed into a first pattern and a second pattern; performing a first optical proximity correction process on the first pattern and the second pattern; determining an imaging performance of the first pattern and the second pattern; determining a first error between the first pattern and the imaging performance of the first pattern, and a second error between the second pattern and the imaging performance of said second pattern; utilizing the first error to adjust the first pattern to generate a modified first pattern; utilizing the second error to adjust the second pattern to generate a modified second pattern; and applying a second optical proximity correction process to the modified first pattern and the modified second pattern.
摘要翻译：一种用于将包含要成像的特征的目标电路图案分解为多个图案的方法。该方法包括将待印刷的特征分离成第一图案和第二图案的步骤; 对所述第一图案和所述第二图案执行第一光学邻近校正处理; 确定所述第一图案和所述第二图案的成像性能; 确定所述第一图案和所述第一图案的成像性能之间的第一误差，以及所述第二图案和所述第二图案的成像性能之间的第二误差; 利用第一误差来调整第一图案以产生修改的第一图案; 利用第二误差来调整第二图案以产生修改的第二图案; 以及对修改的第一图案和修改的第二图案应用第二光学邻近校正处理。

15. 发明申请

US20110014552A1 Method and Apparatus for Performing Dark Field Double Dipole Lithography (DDL) 有权
标题翻译：用于执行暗场双偶极平版印刷术（DDL）的方法和装置
公开(公告)号：US20110014552A1
公开(公告)日：2011-01-20
申请号：US12890494
申请日：2010-09-24
申请人： Duan-Fu Stephen Hsu , Sangbong Park , Douglas Van Den Broeke , Jang Fung Chen
发明人： Duan-Fu Stephen Hsu , Sangbong Park , Douglas Van Den Broeke , Jang Fung Chen
IPC分类号： G03F1/00
CPC分类号： G03F1/36 , G03F1/70 , G03F7/70125 , G03F7/70466
摘要： A method of generating complementary masks for use in a dark field double dipole imaging process. The method includes the steps of identifying a target pattern having a plurality of features, including horizontal and vertical features; generating a horizontal mask based on the target pattern, where the horizontal mask includes low contrast vertical features. The generation of the horizontal mask includes the steps of optimizing the bias of the low contrast vertical features contained in the horizontal mask; and applying assist features to the horizontal mask. The method further includes generating a vertical mask based on the target pattern, where the vertical mask contains low contrast horizontal features. The generation of the vertical mask includes the steps of optimizing the bias of low contrast horizontal features contained in the vertical mask; and applying assist features to the vertical mask.
摘要翻译：一种产生用于暗场双偶极成像过程的互补掩模的方法。该方法包括以下步骤：识别具有多个特征的目标图案，包括水平和垂直特征; 基于目标图案生成水平掩模，其中水平掩模包括低对比度垂直特征。水平掩模的生成包括优化包含在水平掩模中的低对比度垂直特征的偏压的步骤; 并将辅助特征应用于水平掩模。该方法还包括基于目标图案生成垂直掩模，其中垂直掩模包含低对比度水平特征。垂直掩模的产生包括优化垂直掩模中包含的低对比度水平特征的偏差的步骤; 并将辅助特征应用于垂直掩模。

16. 发明授权

US07666554B2 Method and apparatus for performing model-based layout conversion for use with dipole illumination 有权
标题翻译：用于与偶极照明一起使用的基于模型的布局转换的方法和装置
公开(公告)号：US07666554B2
公开(公告)日：2010-02-23
申请号：US11588326
申请日：2006-10-27
申请人： Duan-Fu Stephen Hsu , Kurt E. Wampler , Markus Franciscus Antonius Eurlings , Jang Fung Chen , Noel Corcoran
发明人： Duan-Fu Stephen Hsu , Kurt E. Wampler , Markus Franciscus Antonius Eurlings , Jang Fung Chen , Noel Corcoran
IPC分类号： G03F1/00
CPC分类号： G03F7/705 , G03F1/36 , G03F1/70 , G03F7/70125 , G03F7/70441 , G03F7/70466
摘要： A method of generating complementary masks for use in a multiple-exposure lithographic imaging process. The method includes the steps of: identifying a target pattern having a plurality of features comprising horizontal and vertical edges; generating a horizontal mask based on the target pattern; generating a vertical mask based on the target pattern; performing a shielding step in which at least one of the vertical edges of the plurality of features in the target pattern is replaced by a shield in the horizontal mask, and in which at least one of the horizontal edges of the plurality of features in the target pattern is replaced by a shield in the vertical mask, where the shields have a width which is greater that the width of the corresponding feature in the target pattern; performing an assist feature placement step in which sub-resolution assist features are disposed parallel to at least one of the horizontal edges of the plurality of features in the horizontal mask, and are disposed parallel to at least one of the vertical edges of the plurality of features in the vertical mask, and performing a feature biasing step in which at least one of the horizontal edges of the plurality of features in the horizontal mask are adjusted such that the resulting feature accurately reproduces the target pattern, and at least one of the vertical edges of the plurality of features in the vertical mask are adjusted such that the resulting feature accurately reproduces the target pattern.
摘要翻译：一种产生用于多次曝光光刻成像过程的互补掩模的方法。该方法包括以下步骤：识别具有包括水平和垂直边缘的多个特征的目标图案; 基于目标图案生成水平掩模; 基于目标图案生成垂直掩模; 执行屏蔽步骤，其中目标图案中的多个特征的至少一个垂直边缘被水平掩模中的屏蔽替换，并且其中目标中的多个特征中的至少一个水平边缘图案由垂直掩模中的屏蔽代替，其中屏蔽具有大于目标图案中相应特征的宽度的宽度; 执行辅助特征放置步骤，其中副分辨率辅助特征平行于水平掩模中的多个特征中的至少一个水平边缘设置，并且平行于多个垂直边缘中的至少一个垂直边缘特征，并且执行特征偏置步骤，其中水平掩模中的多个特征的水平边缘中的至少一个被调整，使得所得到的特征精确地再现目标图案，并且垂直屏蔽中的至少一个垂直调整垂直掩模中的多个特征的边缘，使得所得到的特征精确地再现目标图案。

17. 发明授权

US07355673B2 Method, program product and apparatus of simultaneous optimization for NA-Sigma exposure settings and scattering bars OPC using a device layout 有权
标题翻译：使用设备布局的NA-Sigma曝光设置和散射棒OPC的同时优化的方法，程序产品和设备
公开(公告)号：US07355673B2
公开(公告)日：2008-04-08
申请号：US10878489
申请日：2004-06-29
申请人： Duan-Fu Stephen Hsu , Armin Liebchen
发明人： Duan-Fu Stephen Hsu , Armin Liebchen
IPC分类号： G03B27/42 , G03B27/54 , G03B27/32 , G03C5/00
CPC分类号： G03F7/70441 , G03F1/36 , G03F7/70125 , G03F7/70425
摘要： Disclose is a method, program product and apparatus for optimizing numerical aperture (“NA”) and sigma of a lithographic system based on the target layout. A pitch or interval analysis is performed to identify the distribution of critical pitch over the design. Based on the pitch or interval analysis, a critical dense pitch is identified. NA, sigma-in, sigma-out parameters are optimized such that the critical feature will print with or without bias adjustment. For features other than the critical dense features, adjustments are made in accordance with OPC, and lithographic apparatus settings are further mutually optimized. Accordingly, lithographic apparatus settings may be optimized for any pattern concurrently with OPC.
摘要翻译： Disclose是一种基于目标布局优化光刻系统的数值孔径（“NA”）和sigma的方法，程序产品和设备。执行音调或间隔分析以确定设计上的关键音高的分布。基于间距或间隔分析，确定了一个临界密度。 NA，sigma-in，sigma-out参数被优化，使得临界特征将在有或没有偏置调整的情况下打印。对于临界致密特征以外的特征，根据OPC进行调整，并进一步相互优化光刻设备设置。因此，可以对于与OPC同时的任何图案来优化光刻设备设置。

18. 发明授权

US07100145B2 Method of identifying an extreme interaction pitch region, methods of designing mask patterns and manufacturing masks, device manufacturing methods and computer programs 有权
公开(公告)号：US07100145B2
公开(公告)日：2006-08-29
申请号：US10938510
申请日：2004-09-13
申请人： Xuelong Shi , Jang Fung Chen , Duan-Fu Stephen Hsu
发明人： Xuelong Shi , Jang Fung Chen , Duan-Fu Stephen Hsu
IPC分类号： G06F17/50
CPC分类号： G03F7/705 , G03F7/70125 , G03F7/70433 , G03F7/70441
摘要： Optical proximity effects (OPEs) are a well-known phenomenon in photolithography. OPEs result from the structural interaction between the main feature and neighboring features. It has been determined by the present inventors that such structural interactions not only affect the critical dimension of the main feature at the image plane, but also the process latitude of the main feature. Moreover, it has been determined that the variation of the critical dimension as well as the process latitude of the main feature is a direct consequence of light field interference between the main feature and the neighboring features. Depending on the phase of the field produced by the neighboring features, the main feature critical dimension and process latitude can be improved by constructive light field interference, or degraded by destructive light field interference. The phase of the field produced by the neighboring features is dependent on the pitch as well as the illumination angle. For a given illumination, the forbidden pitch region is the location where the field produced by the neighboring features interferes with the field of the main feature destructively. The present invention provides a method for determining and eliminating the forbidden pitch region for any feature size and illumination condition. Moreover, it provides a method for performing illumination design in order to suppress the forbidden pitch phenomena, and for optimal placement of scattering bar assist features.

19. 发明授权

US08910091B2 Method, program product and apparatus for performing double exposure lithography 有权
标题翻译：用于进行双曝光光刻的方法，程序产品和装置
公开(公告)号：US08910091B2
公开(公告)日：2014-12-09
申请号：US13401820
申请日：2012-02-21
申请人： Jang Fung Chen , Duan-Fu Stephen Hsu , Douglas Van Den Broeke
发明人： Jang Fung Chen , Duan-Fu Stephen Hsu , Douglas Van Den Broeke
IPC分类号： G06F17/50 , G03F7/20 , G03F1/00
CPC分类号： G06F17/5081 , G03F1/144 , G03F1/70 , G03F7/70466 , G06F2217/08 , G06F2217/12
摘要： A method of generating complementary masks based on a target pattern having features to be imaged on a substrate for use in a multiple-exposure lithographic imaging process is disclosed. The method includes defining an initial H-mask and an initial V-mask corresponding to the target pattern; identifying horizontal critical features in the H-mask and vertical critical features in the V-mask; assigning a first phase shift and a first percentage transmission to the horizontal critical features, which are to be formed in the H-mask; and assigning a second phase shift and a second percentage transmission to the vertical critical features, which are to be formed in the V-mask. The method further includes the step of assigning chrome to all non-critical features in the H-mask and the V-mask.
摘要翻译：公开了一种基于具有待成像在基板上的特征的目标图案产生互补掩模以在多次曝光光刻成像过程中使用的方法。该方法包括定义对应于目标图案的初始H掩模和初始V掩模; 识别V面罩中H面罩和垂直关键特征的水平关键特征; 将第一相移和第一百分比传输分配给要在H掩模中形成的水平临界特征; 以及将要在V掩模中形成的垂直关键特征分配第二相移和第二百分比传输。该方法还包括将铬分配给H掩模和V掩模中的所有非关键特征的步骤。

20. 发明申请

US20120122023A1 Method and Apparatus for Performing Model-Based OPC for Pattern Decomposed Features 失效
标题翻译：用于对模式分解特征执行基于模型的OPC的方法和装置
公开(公告)号：US20120122023A1
公开(公告)日：2012-05-17
申请号：US13358497
申请日：2012-01-25
申请人： Duan-Fu Stephen Hsu , Jung Chul Park , Douglas Van Den Broeke , Jang Fung Chen
发明人： Duan-Fu Stephen Hsu , Jung Chul Park , Douglas Van Den Broeke , Jang Fung Chen
IPC分类号： G03F1/36 , G06F17/50
CPC分类号： G06T7/0004 , G03F1/36 , G03F1/70 , G03F7/70466 , G03F7/70475
摘要： A method for decomposing a target circuit pattern containing features to be imaged into multiple patterns. The process includes the steps of separating the features to be printed into a first pattern and a second pattern; performing a first optical proximity correction process on the first pattern and the second pattern; determining an imaging performance of the first pattern and the second pattern; determining a first error between the first pattern and the imaging performance of the first pattern, and a second error between the second pattern and the imaging performance of said second pattern; utilizing the first error to adjust the first pattern to generate a modified first pattern; utilizing the second error to adjust the second pattern to generate a modified second pattern; and applying a second optical proximity correction process to the modified first pattern and the modified second pattern.
摘要翻译：一种用于将包含要成像的特征的目标电路图案分解为多个图案的方法。该方法包括将待印刷的特征分离成第一图案和第二图案的步骤; 对所述第一图案和所述第二图案执行第一光学邻近校正处理; 确定所述第一图案和所述第二图案的成像性能; 确定所述第一图案和所述第一图案的成像性能之间的第一误差，以及所述第二图案和所述第二图案的成像性能之间的第二误差; 利用第一误差来调整第一图案以产生修改的第一图案; 利用第二误差来调整第二图案以产生修改的第二图案; 以及对修改的第一图案和修改的第二图案应用第二光学邻近校正处理。

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