Patent ID: 8330248
Filing Date: 2012-12-11
Classification: G03F,G06F,H01L

Abstract:
1. A semiconductor device comprising: a circuit portion including a plurality of features spaced apart from each other by a first distance for which optical proximity correction is required; and a plurality of dummy feature groups each including a plurality of dummy features spaced apart from each other by a second distance for which optical proximity correction is required, wherein the plurality of features and the plurality of dummy features are formed in a first layer, at least one feature of the plurality of features included in the circuit portion is a real feature, a first dummy feature group of the plurality of dummy feature groups has a first dummy feature, a second dummy feature group of the plurality of dummy feature groups has a second dummy feature and is adjacent to the first dummy feature group, a third dummy feature group of the plurality of dummy feature groups has a third dummy feature and is adjacent to the circuit portion, the first dummy feature is adjacent to the second dummy feature with a third distance for which optical proximity correction is not required, and the third dummy feature is adjacent to the real feature with a fourth distance for which optical proximity correction is not required.