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    • 1. 发明授权
    • Multiple edge enabled patterning
    • 多边缘启用图案化
    • US08730473B2
    • 2014-05-20
    • US12892403
    • 2010-09-28
    • Ming-Feng ShiehYa Hui ChangRu-Gun LiuTsong-Hua OuKen-Hsien HsiehBurn Jeng Lin
    • Ming-Feng ShiehYa Hui ChangRu-Gun LiuTsong-Hua OuKen-Hsien HsiehBurn Jeng Lin
    • G01B11/00H01L21/76H01L23/58
    • H01L23/544G03F1/42G03F9/7076H01L21/0337H01L21/0338H01L2924/0002H01L2924/00
    • Provided is an alignment mark having a plurality of sub-resolution elements. The sub-resolution elements each have a dimension that is less than a minimum resolution that can be detected by an alignment signal used in an alignment process. Also provided is a semiconductor wafer having first, second, and third patterns formed thereon. The first and second patterns extend in a first direction, and the third pattern extend in a second direction perpendicular to the first direction. The second pattern is separated from the first pattern by a first distance measured in the second direction. The third pattern is separated from the first pattern by a second distance measured in the first direction. The third pattern is separated from the second pattern by a third distance measured in the first direction. The first distance is approximately equal to the third distance. The second distance is less than twice the first distance.
    • 提供具有多个次分辨率元素的对准标记。 子分辨率元素各自具有小于可由对准过程中使用的对准信号检测的最小分辨率的维度。 还提供了其上形成有第一,第二和第三图案的半导体晶片。 第一和第二图案在第一方向上延伸,并且第三图案沿垂直于第一方向的第二方向延伸。 第二图案与第一图案分离在第二方向上测量的第一距离。 第三图案与第一图案分离在第一方向上测量的第二距离。 第三图案与第二图案分离在第一方向上测量的第三距离。 第一距离近似等于第三距离。 第二距离小于第一距离的两倍。