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ocr_text: MOSFET Characteristics (basics)\n» Linear/Ohmic region: In this region, the MOSFET works as an amplifier functionality.\nThe ability of MOSFET to amplify the signal is given by the output/input ratio:\n--> transconductance g, = (dIp/dVgs)vps = VpsHWCi/L L\np = carrier mobility L = gate length Oralg pour\nW = gate width Gale A\nC; = gate insulator capacitance i\nHigh transconductance is obtained with high values of: lial\n- the low field electron mobility (before saturation) Jaen ro .\n- thin gate insulator layers In / Vas 15\n(--> larger gate insulator capacitance ¢; = £/d; with H } Sourton so\n& the permittivity and d; the thickness of the gate 3g | Vas > Vr In\n- large W/L ratios Ss ] SI\nnormally-off vi AVes
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