US Patent 8667443 Integrated circuit cell library for multiple patterning

A method is disclosed for defining a multiple patterned cell layout for use in an integrated circuit design. A layout is defined for a level of a cell in accordance with a dynamic array architecture so as to include a number of layout features. The number of layout features are linear-shaped and commonly oriented. The layout is split into a number of sub-layouts for the level of the cell. Each of the number of layout features in the layout is allocated to any one of the number of sub-layouts. Also, the layout is split such that each sub-layout is independently fabricatable. The sub-layouts for the level of the cell are stored on a computer readable medium.