Patent ID: 7655381

Claim:
Method for producing a substrate including a resist layer in the form of a relief structure, which represents a diffraction structure, and including a conductive layer at least in certain areas adjoining the resist layer, wherein during the exposure of the resist layer by means of an electron beam the conductive layer scatters the primary electrons and/or produces secondary electrons, comprising the steps: the material of the resist layer and the conductive layer and the exposure parameters are adjusted relative to each other such that the resist layer is also exposed outside the area impinged with the electron beam so that the flanks of the relief structure obtain an inclined form, wherein when the resist layer is manufactured of a negative resist, the conductive layer is disposed intermediate between the resist layer and the substrate; and when the resist layer is manufactured of a positive resist, the conductive layer is disposed before the resist layer when viewed in the direction of beam impingement.