Patent ID: 8902414
Filing Date: 2014-12-02
Classification: G01J,G03F

Abstract:
1. An exposure system comprising: an exposure apparatus including a first module and a second module which overlap in a single scanning direction of the exposure apparatus by an overlapping area, wherein each of the first and second modules generates and emits a light; a mask including a plurality of transmission portions which are spaced apart from each other, each of the transmission portions having a width less than a width of the overlapping area, wherein the transmission portions transmit the light emitted by the first and second modules; a test pattern portion including a plurality of test patterns each of which comprises a metal pattern which is patterned by using the light which is transmitted through the transmission portions of the mask; and a uniformity measuring part which measures characteristics between test patterns in the test pattern portion to measure uniformity of the light from the first and second modules, wherein the metal pattern comprises: first and second conduction portions which face each other in a plan view of the metal pattern, wherein facing edges of the first and second conduction patterns form a concave shape in the plan view; and a concave portion at a central portion of the metal pattern and including the concave shape.