An n-channel MOS device in a technology for which oxide thickness is 20nm, minimum channel length is 1μm, k'n = 100μA/V2, and Vt=0.8 V operates in the triode region, with small vDS and with the gate-source voltage in the range 0V to +5V. What device width is needed to ensure that the minimum available resistance is 1 KΩ?