Engenharia Elétrica

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Uniaxial and/or biaxial strain influence on MuGFET devices
(2012-01-05) AGOPIAN, P. G. D.; MARTINO, J. A.; SIMOEN, E.; CLAEYS, C.
In this work, the impact of global andor local strain engineering techniques on tri-gate p- and nMuGFETs performance is experimentally evaluated. Multiple gate structures were analyzed through basic and analog performance parameters for four different splits processed with different strain-engineering techniques (unstrained, uniaxial, biaxial and uniaxial+biaxial stress). While n-channel devices with narrow fins present a worse analog behavior, biaxial stress promotes the electron mobility for larger devices increasing the voltage gain. Besides the voltage gain, the transconductance, output conductance and Early Voltage are also evaluated. Although pMuGFETs are less affected by the strain engineering, they present better analog behavior for all studied devices. © 2012 The Electrochemical Society.