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公开(公告)号:US20140093814A1
公开(公告)日:2014-04-03
申请号:US13633876
申请日:2012-10-03
Applicant: UNITED MICROELECTRONICS CORP.
Inventor: Hsin-Yu Chen , Chia-Wei Huang , Chun-Hsien Huang , Shih-Chun Tsai , Kai-Lin Chuang
IPC: G03F1/68
Abstract: A method for forming photomasks includes the following steps. A first photomask including a first target pattern and a first unprintable dummy pattern is provided. A second photomask including a second target pattern and a second printable dummy pattern are provided, wherein at least part of the second printable dummy pattern overlapping the first unprintable dummy pattern exposure limit, such that the second printable dummy pattern can not be printed in a wafer.
Abstract translation: 一种形成光掩模的方法包括以下步骤。 提供了包括第一目标图案和第一不可打印虚设图案的第一光掩模。 提供了包括第二目标图案和第二可打印虚设图案的第二光掩模,其中第二可打印虚拟图案的至少一部分与第一不可打印虚设图案曝光极限重叠,使得第二可打印虚拟图案不能被印刷在晶片 。