Patent ID: 8338805
Filing Date: 2012-12-25
Classification: G03F

Abstract:
1. A reticle manufacturing method of drawing a pattern on an electron beam drawing mask blank to manufacture a reticle, said reticle manufacturing method comprising the steps of: holding a reference mask blank by a reference chuck to measure a surface shape of the reference mask blank as a first surface shape; holding the reference mask blank by a reticle chuck of an exposure apparatus to measure a surface shape of the reference mask blank as a second surface shape; holding the electron beam drawing mask blank by the reference chuck to measure a surface shape of the electron beam drawing mask blank as a third surface shape; calculating a difference between measurement values of the first surface shape and the second surface shape as a first difference value; calculating, as a forth surface shape, a surface shape of the electron beam drawing mask blank held by the reticle chuck on the basis of the first difference value and the measurement value of the third surface shape; and drawing the pattern on the electron beam drawing mask blank on the basis of the forth surface shape.