Invention Grant
US09024456B2 Photolithography alignment mark, mask and semiconductor wafer containing the same mark
有权
光刻对准标记,掩模和含有相同标记的半导体晶片
- Patent Title: Photolithography alignment mark, mask and semiconductor wafer containing the same mark
- Patent Title (中): 光刻对准标记,掩模和含有相同标记的半导体晶片
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Application No.: US13329152Application Date: 2011-12-16
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Publication No.: US09024456B2Publication Date: 2015-05-05
- Inventor: Xiaosong Yang , Yibo Yan , Tzu Hsuan Lu
- Applicant: Xiaosong Yang , Yibo Yan , Tzu Hsuan Lu
- Applicant Address: CN Beijing
- Assignee: Semiconductor Manufacturing International (Beijing) Corporation
- Current Assignee: Semiconductor Manufacturing International (Beijing) Corporation
- Current Assignee Address: CN Beijing
- Agency: Koppel, Patrick, Heybl & Philpott
- Agent Michael J. Ram
- Priority: CN201110285659 20110923
- Main IPC: H01L23/544
- IPC: H01L23/544 ; G03F1/42

Abstract:
A photolithography alignment mark and a mask and semiconductor wafer containing said mark are described. The alignment mark comprises: a plurality of first alignment lines arranged parallel with each other in a first direction; a plurality of second alignment lines arranged parallel with each other in a second direction perpendicular to the first direction, and wherein each of the plurality of first alignment lines is composed of a predetermined number of first fine alignment lines uniformly spaced from each other, and each of the plurality of second alignment lines is composed of a predetermined number of second fine alignment lines uniformly spaced from each other. Alignment marks can be located in non-circuit pattern regions of the mask and on a plurality of layers in mark regions on the wafer.
Public/Granted literature
- US20130075938A1 PHOTOLITHOGRAPHY ALIGNMENT MARK, MASK AND SEMICONDUCTOR WAFER CONTAINING THE SAME MARK Public/Granted day:2013-03-28
Information query
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