Patent ID: 8390790
Filing Date: 2013-03-05
Classification: G03F

Abstract:
1. Method for imaging a pattern, comprising generating, by means of an illumination unit, light spots on a programmable mask, the programmable mask being situated over a substrate comprising a photosensitive layer, producing by impingement of the light spots on the photosensitive layer, through an optical unit, individual pixels in a grid array, each pixel corresponding to an exposure point on the photosensitive layer, the pixels comprising an image corresponding to the pattern, wherein at least two exposure processes for the photosensitive layer are performed, the light spots for each exposure process being offset from the light spots for the other, the grid including spaces between the pixels in proportion to the number of exposure processes and the number of exposure points and, hence, pixels produced by the exposure processes is in proportion to the number of exposure processes and the exposure processes are effected simultaneously by means of a respective programmable mask for each exposure process.