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Embedded SiGe process technology in source/drain is an available method to do the compressive strain in PMOSFETs to increase the channel mobility. However, the fringe junction leakage close to gate electrodes, comparing that with the control group, is increased more. When the temperature effect is incorporated, this deterioration is more obvious. Through the decouple technology with feasible junction pattern design, the fringe junction leakage issue can be effectively extracted and clarified.