Patent ID: 7956983

Claim:
Exposure equipment, comprising: a light source configured to produce light; a first photo mask having a first pattern region and a second pattern region, the first photo mask spaced apart from the light source by a desired distance associated with the first photo mask, the first photo mask configured to receive the light from the light source and irradiate the light; a second photo mask having a first region and a second region, the second photo mask spaced apart from the light source by a desired distance associated with the second photo mask; and a first reflective mirror disposed on an optical path between the first photo mask and the second photo mask, the first reflective mirror configured to receive all the light irradiated from the first photo mask and irradiate all the light to the second photo mask; wherein the first photo mask includes a first reflective layer, wherein the first and second pattern regions of the first photo mask are formed on the first reflective layer, wherein the first pattern region of the first photo mask includes a high-density light absorbing pattern region, wherein the second pattern region of the first photo mask includes a low-density light absorbing pattern region, wherein the second photo mask includes a second reflective layer, wherein the first and second regions of the second photo mask are formed adjacent to each other on the second reflective layer, wherein the first region of the second photo mask includes a transparent region that corresponds to the high-density light absorbing pattern region, and wherein the second region of the second photo mask includes a translucent region that corresponds to the low-density light absorbing pattern region.