Patent ID: 7289868
Filing Date: 2007-10-30
Classification: G03F,Y10S

Abstract:
1. A method performed by a fabrication system, the method comprising: adjusting a first relative position between a substrate and a fabrication unit by a first shift value; forming a first pattern relative to a first pattern instance on the substrate subsequent to adjusting the first relative position by the first shift value; calculating a second shift value using a first displacement between the first pattern and the first pattern instance and a second displacement between a second relative position of the first pattern instance with respect to the fabrication unit prior to the first relative position being adjusted by the first shift value and a third relative position of a second pattern instance on the substrate with respect to the fabrication unit subsequent to the first relative position being adjusted by the first shift value; and adjusting the first relative position between the substrate and the fabrication unit by the second shift value.