A semiconductor device includes a substrate portion including a plurality of diffusion regions defined in a non-symmetrical manner relative to a virtual bisecting line. A gate electrode level region above the substrate portion includes a number of conductive features that extend in only a first parallel...http://www.google.com.hk/patents/US20100032726?utm_source=gb-gplus-share專利 US20100032726 - Semiconductor Device Portion Having Sub-193 Nanometers -Sized Gate Electrode Conductive Structures Formed from Linear Shaped Gate Electrode Layout Features Defined Along At Least Four Gate Electrode Tracks with Minimum End-to-End Spacing and Having Corresponding Non-Symmetric Diffusion Regions