W A chip of width 26mm and length 32mm is attached to a copper heat sink with k = 400 as mk shown below. The chip temperature is set at an isothermal value of 75C. The base of the heat sink (i.e. the copper portion prior to where the fins begin) has a length of 5mm. The fins are2mm wide each, 20mm long, and there is a 2mm gap between fins. The air temperature is 20C t . . . . W , and travels through the fans with convective coefficient I1 = 25 m. The contact reSIstance 5 no\"! W well-insulated surface, meaning that an adiabatic condition may be assumed for the tips. For these conditions, what is the chip power qc? between the chip and the heat sink is REC = 3 t 10' . The fin tips are pressed against a