Patent ID: 7747977

Claim:
A method for designing a stencil for particle beam writing and fabricating device, the method comprising the steps of: storing a cell projection (CP) cell library information for a plurality of CP cells in the form of a data structure, the cell projection library information being generated by a stencil design system; referencing the CP cell library data by a particle beam writing system; and performing a proximity effect correction, the proximity effect correction being performed by modifying a plurality of CP cell patterns in the CP cell library, wherein the proximity effect correction is further performed based on a deposition energy, wherein performing proximity effect correction comprises the steps of: determining a plurality of observation points for each of a plurality of simulated printed images of the CP cell patterns, each of the observation points being placed on a perimeter of a shape of one of the simulated printed images; determining a plurality of target deposition energies at the observation points, the plurality of target deposition energies being the required deposition energy at each of the plurality of observation points; computing a difference between a simulated deposited energy at each of the plurality of observation points and the corresponding target deposition energy; and minimizing the difference between the simulated deposited energy at each of the plurality of observation points and the corresponding target deposition energy by moving edges of the CP cell pattern shapes, while keeping the observation points fixed writing patterns on the device depending on the referenced CP cell library information.