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Publication
IEEE Transactions on Electron Devices
Paper
A new method to determine effective lateral doping abruptness and spreading-resistance components in nanoscale MOSFETs
Abstract
A comprehensive technique for the accurate extraction of the effective lateral doping abruptness and the spreading-resistance components in source/drain extension (EXT) regions is presented by FET ON-resistance characterization and physical resistance modeling. The spreading-resistance components under EXT-to-gate overlap, and spacer regions are successfully correlated to the lateral EXT doping abruptness by the relationship between ON-resistance (Ron) and overlap capacitance response (Cov) measured from 90-nm-node silicon-on-insulator MOSFETs. The accurate determination of lateral doping abruptness is found to be essential for linking the external spreading resistance to intrinsic short-channel device characteristics. © 2008 IEEE.