Abstract:Electron projection lithography (EPL) is one of the most promising candidates for the next generation lithography toward the hp 45 nm-node and beyond. EPL employs a stencil mask made from 200 mm Si wafer without a support frame, therefore chucking of an EPL tool and a metrology tool causes deformation in an EPL reticle. However, linear components of sub-field (SF) position error can be corrected by reticle alignment features of an EPL tool, whereas the non-linear components of SF position error can be correcte… Show more
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