发明名称 Method and system for improving particle beam lithography
摘要 A method for particle beam lithography, such as electron beam (EB) lithography, includes forming a plurality of cell patterns on a stencil mask and shaping one or more of the cell patterns with a polygonal-shaped contour. A first polygonal-shaped cell pattern is exposed to a particle beam so as to project the first polygonal-shaped cell pattern on a substrate. A second polygonal-shaped cell pattern, having a contour that mates with the contour of the first polygonal-shaped cell pattern, is exposed to the particle beam, such as an electron beam, so as to project the second polygonal-shaped cell pattern adjacent to the first polygonal-shaped cell pattern to thereby form a combined cell with the contour of the first polygonal-shaped cell pattern mated to the contour of the second polygonal-shaped cell pattern. The polygonal-shaped contour of the first and second cell patterns may comprise a rectilinear-shaped contour.
申请公布号 US7897522(B2) 申请公布日期 2011.03.01
申请号 US20060603603 申请日期 2006.11.21
申请人 CADENCE DESIGN SYSTEMS, INC. 发明人 FUJIMURA AKIRA;FONG JAMES;MITSUHASHI TAKASHI;MATSUSHITA SHOHEI
分类号 H01L21/00 主分类号 H01L21/00
代理机构 代理人
主权项
地址