Patent ID: 7541613
Filing Date: 2009-06-02
Classification: H01L

Abstract:
1. An integrated circuit chip, comprising: a multiplicity of virtual regions, at least two or more of said virtual regions having identically designed field effect transistors; a reflectivity of light of a first region of said two or more virtual regions different from a reflectivity of light of a second region of said two or more virtual regions; first field effect transistors in said first region of said two or more virtual regions having physical polysilicon gate lengths that are different from physical polysilicon gate lengths of second field effect transistors in said second region of said two or more virtual regions, said first and second field effect transistors identically designed; and wherein a value of a functional device parameter of said first field effect transistors in said first region of said two or more virtual regions is the same as a value of a same functional device parameter of said second field effect transistors in said second region of said two or more virtual regions.