Patent ID: 8539392

Claim:
A method for compensating a proximity effect of a particle beam lithography process, comprising: (a) providing a control pattern consisted of a set of control boundaries; (b) providing a dissection process, wherein the dissection process produces a set of dissection points according to an import pattern which is composed of a set of import boundaries, the set of the import boundaries passing through the set of the dissection points; (c) providing a set of control points produced according to the dissection process and the control pattern, the set of the control boundaries passing through the set of control points; (d) defining the control pattern as an input pattern of the lithography process; (e) providing a target pattern consisting of a set of target boundaries; (f) providing a set of target points produced according to the dissection process and the target pattern, the set of target boundaries passing through the set of the target points; (g) providing a set of target measurement values, wherein the set of the target measurement values are obtained from the set of target points and the set of target boundaries; (h) defining an actual pattern consisting of a set of actual boundaries; (i) providing a set of actual measurement values, wherein the actual measurement values are obtained from the set of the target points and the set of the actual boundaries; (j) calculating a set of comparison values according to the set of target measurement values and the set of actual measurement values by a computer; (k) providing an adjusting strategy; (l) producing a corrected pattern according to the set of comparison values and the adjusting strategy, the corrected pattern consisting of a set of corrected boundaries and the set of corrected boundaries passing through the set of control points; and (m) defining the corrected pattern as an updated input pattern of the lithography process according to the set of corrected boundaries.