| 摘要 |
A lithographic apparatus in which ultraviolet light is used to illuminate a mask and an image of the mask is projected onto a photo-cathode. Photo-electrons are emitted and projected onto a substrate to expose a radiation sensitive layer thereon. The photo-cathode is curved, e.g. to conform to a part-spherical surface. The photo-electrons may be focused and demagnified using a pseudo-monopole magnetic field. <IMAGE> |
