Patent ID: 7902528

Claim:
A method of particle beam lithography, comprising: preparing a stencil design having at least one group of patterns that are corrected for proximity effect by pattern modification; correcting the proximity effect by at least modifying at least one dose of particle beam shots, wherein the act of correcting the proximity effect by at least modifying the at least one dose applies to both a variable shaped beam (VSB) writing mode and a cell projection (CP) writing mode, and the act of correcting the proximity effect by at least modifying the at least one dose of particle beam shots applies to the cell projection writing mode to write the a lithography image of a cell without dividing an area of the cell into grids; and writing a lithography image by using at least the stencil design and the at least one dose that is modified for the act of correcting the proximity effect, wherein the act of writing the lithography image is characterized by being capable of being accomplished by either the VSB writing mode or the CP writing mode, or a combination of the VSB writing mode and the CP writing mode.