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    • 1. 发明申请
    • LITHOGRAPHY ALIGNMENT SYSTEM AND METHOD USING FEEDBACK CONTROL BASED ON NANOSCALE DISPLACEMNT SENSING AND ESTIMATION
    • 使用基于纳米尺度位移感测和估计的反馈控制的平移对准系统和方法
    • WO2008048595A3
    • 2008-06-19
    • PCT/US2007022067
    • 2007-10-16
    • HEWLETT PACKARD DEVELOPMENT COPARK INKYUWU WEIGAO JUNPICCIOTTO CARL
    • PARK INKYUWU WEIGAO JUNPICCIOTTO CARL
    • G03F9/00
    • G03F9/7038G03F9/7088G03F9/7092G03F9/7096
    • A contact lithography alignment system (500) and methods (100, 200, 400) use nanoscale displacement sensing and estimation (nDSE) 300, 300' to maintain an alignment and compensate for a disturbance of one or more objects (510) during contact lithography. A method (100) of maintaining an alignment includes establishing (110) an initial alignment of one or more objects and employing (120, 200) nDSE-based feedback control of relative positions of one or more of the objects to maintain the alignment during contact lithography. A method (400) of disturbance compensation includes acquiring (410) a first image, acquiring (210, 420) a second image, estimating (220, 430) an alignment error using (120, 200) nDSE applied to the first and second images, and adjusting (230, 440) a relative position to reduce the alignment error. The contact lithography system (500) includes an optical sensor (520), a feedback processor (530, 600) providing nDSE and a position controller (540) that adjusts relative positions of one or more objects to reduce an alignment error determined using the nDSE.
    • 接触光刻对准系统(500)和方法(100,200,400)使用纳米尺度位移感测和估计(nDSE)300,300'来保持对准并补偿接触光刻期间的一个或多个物体(510)的干扰 。 保持对准的方法(100)包括建立(110)一个或多个对象的初始对准,并采用(120,200)基于nDSE的反馈控制,以反映一个或多个对象的相对位置以保持接触期间的对准 光刻。 干扰补偿的方法(400)包括获取(410)第一图像,获取(210,420)第二图像,使用施加到第一和第二图像的(120,200)nDSE来估计(220,430)对准误差 ,并调整(230,440)相对位置以减小对准误差。 接触光刻系统(500)包括光学传感器(520),提供nDSE的反馈处理器(530,600)和调整一个或多个物体的相对位置以减少使用nDSE确定的对准误差的位置控制器(540) 。
    • 5. 发明申请
    • METHOD OF PERFORMING LITHOGRAPHY AND LITHOGRAPHY SYSTEM
    • 执行算术和图像系统的方法
    • WO2008016651A3
    • 2008-07-31
    • PCT/US2007017195
    • 2007-07-30
    • HEWLETT PACKARD DEVELOPMENT COPICCIOTTO CARLGAO JUNWU WEIYU ZHAONING
    • PICCIOTTO CARLGAO JUNWU WEIYU ZHAONING
    • G03F9/00
    • G03F9/7092G03F9/7038G03F9/7042G03F9/7088
    • Methods of performing lithography include calculating a displacement vector (74) for a lithography tool (50) using an image (60) of a portion of the lithography tool (50) and a portion of a substrate (10) and an additional image (28) of a portion of an additional lithography tool (30) and a portion of the substrate (10). Methods of aligning objects include positioning a second object (30) proximate a first object (10) and acquiring a first image (38) illustrating a feature (32) on a surface of the second object (30) and a feature (18) on a surface of the first object (10). As additional object (50) is positioned proximate the first object (10), and an additional image (60) is acquired that illustrates a feature (52) on a surface of the additional object (50) and the feature (18) on the surface of the first object (10). The additional image (60) is compared with the first image (38). Imprint molds (30, 50) include at least one non-marking reference feature (32, 52) on animprinting surface of the imprint molds (30, 50).
    • 执行光刻的方法包括使用光刻工具(50)的一部分的图像(60)和基底(10)的一部分和附加图像(28)来计算光刻工具(50)的位移矢量(74) )附加光刻工具(30)的一部分和基底(10)的一部分。 对准对象的方法包括定位邻近第一物体(10)的第二物体(30)并且获取第二图像(38),该第一图像(38)示出在第二物体(30)的表面上的特征(32) 第一物体(10)的表面。 随着附加物体(50)被定位在第一物体(10)附近,并且获取附加图像(60),其示出了附加物体(50)的表面上的特征(52)和 第一物体(10)的表面。 将附加图像(60)与第一图像(38)进行比较。 压印模具(30,50)包括在压印模具(30,50)的印模表面上的至少一个非标记参考特征(32,52)。
    • 9. 发明申请
    • CONTACT LITHOGRAPHY APPARATUS, SYSTEM AND METHOD
    • 接触光刻设备,系统和方法
    • WO2008048491A3
    • 2008-06-05
    • PCT/US2007021813
    • 2007-10-12
    • HEWLETT PACKARD DEVELOPMENT COWU WEIWANG SHIH-YUANLI ZHIYONGWALMSLEY ROBERT
    • WU WEIWANG SHIH-YUANLI ZHIYONGWALMSLEY ROBERT
    • G03F7/00G03F7/20
    • G03F7/0002B82Y10/00B82Y40/00G03F7/7035
    • A contact lithography system (100, 200) includes a patterning tool (110, 228a, 510) bearing a pattern (112); a substrate chuck (214) for chucking a substrate (130, 228b) to receive the pattern (112) from the patterning tool (110, 228a, 510); where the system (100, 200) deflects a portion of either the patterning tool (110, 228a, 510) or the substrate (130, 228b) to bring the patterning tool (110, 228a, 510) and a portion of the substrate (130, 228b) into contact; and a stepper (260) for repositioning either or both of the patterning tool (110, 228a, 510) and substrate (130, 228b) to align the pattern (112) with an additional portion of the substrate (130, 228b) to also receive the pattern (112). A method of performing contact lithography comprising: deflecting a portion of either a patterning tool (110, 228a, 510) or a substrate (130, 228b) to bring the patterning tool (110, 228a, 510) and a portion of the substrate (130, 228b) into contact; and repositioning either or both of the patterning tool (110, 228a, 510) and substrate (130, 228b) to align a pattern (112) on the patterning tool (110, 228a, 510) with an additional portion of the substrate (130, 228b) to also receive the pattern (112).
    • 一种接触光刻系统(100,200)包括承载图案(112)的图案化工具(110,228a,510); 衬底卡盘(214),其用于夹持衬底(130,228b)以从图案化工具(110,228a,510)接收图案(112); 其中系统(100,200)使图案化工具(110,228a,510)或衬底(130,228b)的一部分偏转以使图案化工具(110,228a,510)和部分衬底 130,228b)接触; 和步进器(260),其用于重新定位图案形成工具(110,228a,510)和衬底(130,228b)中的任一个或两者以使图案(112)与衬底(130,228b)的另外部分对准 接收模式(112)。 一种执行接触光刻的方法,包括:使图案化工具(110,228a,510)或衬底(130,228b)的一部分偏转,以使图案化工具(110,228a,510)和衬底的一部分 130,228b)接触; 以及重新定位图案化工具(110,228a,510)和衬底(130,228b)中的任一者或两者以使图案形成工具(110,228a,510)上的图案(112)与衬底(130,228b)的另外部分 ,228b)也接收图案(112)。