发明名称 Alignment marks
摘要 The alignment marks of the present invention, which are to be used for alignment of a wafer, have a slit pattern with a plurality of slits arranged upon the wafer; and a dot pattern with a plurality of dots arranged along the length of the slits at the outer regions of two of the plurality of slits, which are at the ends thereof.
申请公布号 US2002056205(A1) 申请公布日期 2002.05.16
申请号 US20010035520 申请日期 2001.11.09
申请人 NEC CORPORATION 发明人 KOSHITAKA TOSHIAKI
分类号 G03F1/08;G01D21/00;G03F1/42;G03F7/20;G03F9/00;H01L21/027;(IPC1-7):G01D21/00 主分类号 G03F1/08
代理机构 代理人
主权项
地址