Method for performing pattern pitch-split decomposition utilizing anchoring features
    2.
    发明申请
    Method for performing pattern pitch-split decomposition utilizing anchoring features 失效
    使用锚固特征进行图案间距分解分解的方法

    公开(公告)号:US20080092106A1

    公开(公告)日:2008-04-17

    申请号:US11898647

    申请日:2007-09-13

    IPC分类号: G06F17/50

    摘要: A method for decomposing a target pattern containing features to be printed on a wafer into multiple patterns. The method includes the steps of: (a) determining a minimum critical dimension and pitch associated with a process to be utilized to image the multiple patterns; (b) generating an anchoring feature; (c) disposing the anchoring feature adjacent a first feature of the target pattern; (d) growing the anchoring feature a predetermined amount so as to define a first area; (e) assigning any feature within the first area to a first pattern; (f) disposing the anchoring feature adjacent a second feature of the target pattern; (g) growing the anchoring feature the predetermined amount so as to define a second area; and (h) assigning any feature within the second area to a second pattern. Steps (c)-(h) are then repeated until the densely spaced features within the target pattern have been assigned to either the first or second pattern.

    摘要翻译: 一种用于将包含要印刷在晶片上的特征的目标图案分解为多个图案的方法。 该方法包括以下步骤:(a)确定与要用于对多个图案成像的过程相关联的最小临界尺寸和间距; (b)产生锚固特征; (c)将所述锚定特征设置在所述目标图案的第一特征附近; (d)使锚定特征增长预定量以限定第一区域; (e)将第一区域内的任何特征分配给第一模式; (f)将所述锚定特征设置在所述目标图案的第二特征附近; (g)使锚定特征增长预定量以限定第二区域; 和(h)将第二区域内的任何特征分配给第二模式。 然后重复步骤(c) - (h),直到目标图案内密集间隔的特征被分配给第一或第二图案。

    Method and apparatus for performing dark field double dipole lithography (DDL)
    3.
    发明申请
    Method and apparatus for performing dark field double dipole lithography (DDL) 有权
    用于进行暗场双偶极子光刻(DDL)的方法和装置

    公开(公告)号:US20080020296A1

    公开(公告)日:2008-01-24

    申请号:US11783261

    申请日:2007-04-06

    IPC分类号: G03C5/00 G03F1/00

    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。

    Method, program product and apparatus for performing double exposure lithography
    4.
    发明申请
    Method, program product and apparatus for performing double exposure lithography 有权
    用于进行双曝光光刻的方法,程序产品和装置

    公开(公告)号:US20060277521A1

    公开(公告)日:2006-12-07

    申请号:US11402273

    申请日:2006-04-12

    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. The method includes the steps of: defining an initial H-mask corresponding to the target pattern; defining an initial V-mask corresponding to the target pattern; identifying horizontal critical features in the H-mask having a width which is less than a predetermined critical width; identifying vertical critical features in the V-mask having a width which is less than a predetermined critical width; 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. The non-critical features are those features having a width which is greater than or equal to the predetermined critical width. The non-critical features are formed in the H-mask and the V-mask utilizing chrome. The target pattern is then imaged on the substrate by imaging both the H-mask and V-mask.

    摘要翻译: 基于具有要在多曝光光刻成像处理中使用的基板上成像的特征的目标图案产生互补掩模的方法。 该方法包括以下步骤:定义对应于目标图案的初始H掩码; 定义对应于目标图案的初始V掩模; 识别具有小于预定临界宽度的宽度的H掩模中的水平临界特征; 识别具有小于预定临界宽度的宽度的V形掩模中的垂直关键特征; 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。 非关键特征是具有大于或等于预定临界宽度的宽度的那些特征。 非关键特征形成在H掩模和使用铬的V形掩模中。 然后通过成像H掩模和V掩模来将目标图案成像在衬底上。

    Method, program product and apparatus for performing mask feature pitch decomposition for use in a multiple exposure process
    5.
    发明申请
    Method, program product and apparatus for performing mask feature pitch decomposition for use in a multiple exposure process 有权
    用于进行多次曝光处理中使用的掩模特征间距分解的方法,程序产品和装置

    公开(公告)号:US20070031740A1

    公开(公告)日:2007-02-08

    申请号:US11472544

    申请日:2006-06-22

    IPC分类号: G03F1/00

    CPC分类号: G03F7/70466 G03F1/70

    摘要: A method for forming exposure masks for imaging a target pattern having features to be imaged on a substrate in a multi-exposure process. The method includes the steps of generating a set of decomposition rules defining whether a given feature of the target pattern is assigned to a first exposure mask or a second exposure mask; applying the decomposition rules to each of the features in the target pattern so as to assign each of the features in the target pattern to one of the first exposure mask or second exposure mask; and generating the first exposure mask and the second exposure mask containing the respective features assigned to each mask.

    摘要翻译: 一种形成曝光掩模的方法,用于在多曝光过程中对具有要被成像的特征的目标图案进行成像。 该方法包括以下步骤:产生一组分解规则,定义目标图案的给定特征是否被分配给第一曝光掩模或第二曝光掩模; 将分解规则应用于目标图案中的每个特征,以将目标图案中的每个特征分配给第一曝光掩模或第二曝光掩模之一; 以及生成包含分配给每个掩模的各个特征的第一曝光掩模和第二曝光掩模。

    Method and apparatus for performing model-based OPC for pattern decomposed features
    6.
    发明申请
    Method and apparatus for performing model-based OPC for pattern decomposed features 有权
    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:US20080069432A1

    公开(公告)日:2008-03-20

    申请号:US11898646

    申请日:2007-09-13

    IPC分类号: G06K9/00

    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。

    Method and apparatus for providing optical proximity features to a reticle pattern for deep sub-wavelength optical lithography
    7.
    发明授权
    Method and apparatus for providing optical proximity features to a reticle pattern for deep sub-wavelength optical lithography 有权
    用于将深度亚波长光学光刻的掩模版图案提供光学邻近特征的方法和装置

    公开(公告)号:US07774736B2

    公开(公告)日:2010-08-10

    申请号:US11714147

    申请日:2007-03-06

    IPC分类号: G06F17/50

    CPC分类号: G03F1/36 G03F7/70441

    摘要: A method of generating a mask design having optical proximity correction features disposed therein. The methods includes the steps of obtaining a desired target pattern having features to be imaged on a substrate; determining an interference map based on the target pattern, the interference map defining areas of constructive interference and areas of destructive interference between at least one of the features to be imaged and a field area adjacent the at least one feature; and placing assist features in the mask design based on the areas of constructive interference and the areas of destructive interference.

    摘要翻译: 一种产生具有设置在其中的光学邻近校正特征的掩模设计的方法。 所述方法包括以下步骤:获得具有要在基底上成像的特征的期望目标图案; 确定基于所述目标图案的干涉图,所述干涉图定义建构性干扰的区域和要成像的至少一个要素与邻近所述至少一个特征的场区域之间的相消干涉区域; 并且基于建设性干扰的区域和破坏性干扰的区域将辅助特征放置在掩模设计中。

    Method and apparatus for providing optical proximity features to a reticle pattern for deep sub-wavelength optical lithography
    8.
    发明授权
    Method and apparatus for providing optical proximity features to a reticle pattern for deep sub-wavelength optical lithography 有权
    用于将深度亚波长光学光刻的掩模版图案提供光学邻近特征的方法和装置

    公开(公告)号:US07247574B2

    公开(公告)日:2007-07-24

    申请号:US10756830

    申请日:2004-01-14

    IPC分类号: H01L21/302 H01L21/461

    CPC分类号: G03F1/36 G03F7/70441

    摘要: A method of generating a mask design having optical proximity correction features disposed therein. The methods includes the steps of obtaining a desired target pattern having features to be imaged on a substrate; determining an interference map based on the target pattern, the interference map defining areas of constructive interference and areas of destructive interference between at least one of the features to be imaged and a field area adjacent the at least one feature; and placing assist features in the mask design based on the areas of constructive interference and the areas of destructive interference.

    摘要翻译: 一种产生具有设置在其中的光学邻近校正特征的掩模设计的方法。 所述方法包括以下步骤:获得具有要在基底上成像的特征的期望目标图案; 确定基于所述目标图案的干涉图,所述干涉图定义建构性干扰的区域和要成像的至少一个要素与邻近所述至少一个特征的场区之间的相消干涉的区域; 并且基于建设性干扰的区域和破坏性干扰的区域将辅助特征放置在掩模设计中。

    Method and apparatus for generating OPC rules for placement of scattering bar features utilizing interface mapping technology
    9.
    发明申请
    Method and apparatus for generating OPC rules for placement of scattering bar features utilizing interface mapping technology 失效
    使用接口映射技术生成用于放置散射条特征的OPC规则的方法和装置

    公开(公告)号:US20070122719A1

    公开(公告)日:2007-05-31

    申请号:US11594248

    申请日:2006-11-08

    IPC分类号: G06F17/50 G03F1/00

    CPC分类号: G03F1/36

    摘要: A method of applying optical proximity correction features to a mask having a plurality of features to be imaged. The method includes the steps of defining a set of process parameters to be utilized to image the mask; defining a set of pitch ranges corresponding to pitches exhibited by the plurality of features to be imaged; determining an interference map for at least one of the pitch ranges; and generating a set of rules for positioning scattering bars adjacent the plurality of features based on the interference map, where the set of rules governs scattering bar placement for features having a pitch which falls within the pitch range utilized to generate the interference map.

    摘要翻译: 将光学邻近校正特征应用于具有要成像的多个特征的掩模的方法。 该方法包括以下步骤:定义要用于对掩模进行成像的一组过程参数; 定义对应于待成像的多个特征所展示的间距的一组音调范围; 确定所述音高范围中的至少一个的干涉图; 以及基于所述干涉图来生成用于定位与所述多个特征相邻的散射条的一组规则,其中所述规则集合管理具有落在用于生成所述干涉图的所述音调范围内的音调的特征的散射棒放置。

    Method, program product and apparatus for generating assist features utilizing an image field map
    10.
    发明申请
    Method, program product and apparatus for generating assist features utilizing an image field map 有权
    用于利用图像场图产生辅助特征的方法,程序产品和装置

    公开(公告)号:US20050053848A1

    公开(公告)日:2005-03-10

    申请号:US10878490

    申请日:2004-06-29

    摘要: Disclosed concepts include a method, program product and apparatus for generating assist features for a pattern to be formed on the surface of a substrate by generating an image field map corresponding to the pattern. Characteristics are extracted from the image field map, and assist features are generated for the pattern in accordance with the characteristics extracted in step. The assist features may be oriented relative to a dominant axis of a contour of the image field map. Also, the assist features may be polygon-shaped and sized to surround the contour or relative to the inside of the contour. Moreover, the assist features may be placed in accordance with extrema identified from the image field map. Utilizing the image field map, a conventional and complex two-dimensional rules-based approach for generating assist feature can be obviated.

    摘要翻译: 所公开的概念包括通过产生对应于图案的图像场图来产生要形成在基板的表面上的图案的辅助特征的方法,程序产品和装置。 从图像场图中提取特征,并根据步骤中提取的特征为图案生成辅助特征。 辅助特征可以相对于图像场图的轮廓的主轴定向。 此外,辅助特征可以是多边形形状并且尺寸设计成围绕轮廓或相对于轮廓的内部。 此外,可以根据从图像场地图识别的极值放置辅助特征。 利用图像场图,可以避免用于产生辅助特征的常规和复杂的基于二维规则的方法。