Patent ID: 6989536

Claim:
An electron-beam writing device comprising: a first D/A converter for outputting a signal indicating a starting position to write a predetermined line segment having a predetermined length; a second D/A converter for converting scan clocks into analog signals and sequentially outputting each of the analog signals; a calculator for multiplying the number of scan clocks corresponding to the predetermined length and a unit distance together, the unit distance corresponding to the resolving power of said second D/A converter, to calculate an adjustment rate for adjusting the difference between the obtained multiplied value and the predetermined length; a regulator for variably adjusting the analog signal outputted from said second D/A converter at the adjustment rate calculated by said calculator; and an electron-beam scanning device into which the signal indicating the starting position outputted from said first D/A converter and the analog signal outputted from said second D/A converter and variably adjusted by said regulator are inputted to deflect and scan an electron beam.