Parasitic capacitances: depletion layer capacitance (III)
{"Image DocumentName": "Parasitic capacitances: depletion layer capacitance (III)", "Image ImageDescription": "W(Vext) -dQ. dQ. As it is a non-constant capacitance, static and dynamic capacitances could be defined. The latter is defined as: Cj=dQ/dV=\uf065\u00b7A/W(Vext) As: W(Vext) = 2\u00b7\uf065\u00b7(NA+ND)\u00b7(V0-Vext) q\u00b7NA\u00b7ND. Vext. Cj. Then: Cj = A\u00b7 2\u00b7(NA+ND)\u00b7(V0-Vext) \uf065\u00b7q\u00b7NA\u00b7ND. In an abrupt PN junction (as we have considered so far), this capacitance is a K\u00b7(V0-Vext)-1/2 -type function.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}