Patent ID: 7892704
Filing Date: 2011-02-22
Classification: H01L

Abstract:
1. A mask for silicon crystallization, comprising: a first group of slits including one or more slits inclined at an obtuse angle with respect to a scan direction, wherein the slits are spaced apart from one another in a direction perpendicular to the scan direction; a second group of slits including one or more slits inclined at an obtuse angle with respect to the scan direction, wherein the slits are spaced apart from one another in a direction perpendicular to the scan direction; a third group of slits including one or more slits inclined at an acute angle with respect to the scan direction, wherein the slits are arranged spaced apart from one another in a direction perpendicular to the scan direction; and a fourth group of slits including one or more slits inclined at an acute angle with respect to the scan direction, wherein the slits are spaced apart from one another in a direction perpendicular to the scan direction, wherein the first, second, third and fourth groups of slits are spaced apart from one another in the scan direction, the scan direction being substantially the same as a direction in which the groups of slits are arranged.