Patent ID: 8877593
Filing Date: 2014-11-04
Classification: H01L

Abstract:
1. A method of making a semiconductor device, the method comprising: forming a first gate on a substrate; forming first and second diffusion regions in the substrate on a side of the first gate; forming first and second contacts which contact the first and second diffusion regions, respectively, the first contact being asymmetric with respect to the second contact, and the first diffusion region comprising a width which is greater than a width of the second diffusion region; forming a first FET comprising the first and second diffusion regions, first gate and first and second contacts; forming a second FET on the substrate adjacent to the first FET and including a second gate formed on the substrate, third and fourth diffusion regions formed in the substrate on a side of the second gate, and third and fourth contacts which contact the third and fourth diffusion regions, respectively; and forming a third FET on the substrate adjacent to the second FET, the third FET including a third gate formed on the substrate, fifth and sixth diffusion regions formed in the substrate on a side of the third gate, and fifth and sixth contacts which contact the fifth and sixth diffusion regions, respectively, wherein a pitch between the first and second gates comprises a first pitch and a pitch between the second and third gates comprises a second pitch which is different from the first pitch.