From 64419e47f762802600b3a2b6d8c433a16ccd3d55 Mon Sep 17 00:00:00 2001 From: Thomas Stephen Lee Date: Fri, 4 Sep 2015 22:04:10 +0530 Subject: add/remove/update books --- .../ChapterNo8.ipynb | 576 +++++++++++++++++++++ 1 file changed, 576 insertions(+) create mode 100755 Advance_Semiconductor_Devices_by_S._Sharma/ChapterNo8.ipynb (limited to 'Advance_Semiconductor_Devices_by_S._Sharma/ChapterNo8.ipynb') diff --git a/Advance_Semiconductor_Devices_by_S._Sharma/ChapterNo8.ipynb b/Advance_Semiconductor_Devices_by_S._Sharma/ChapterNo8.ipynb new file mode 100755 index 00000000..47137bb2 --- /dev/null +++ b/Advance_Semiconductor_Devices_by_S._Sharma/ChapterNo8.ipynb @@ -0,0 +1,576 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "

Chapter No 8 : Metal Semiconductor Field Effect Transistor

" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.1, Page No 323" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#initialisation of variables\n", + "I_DSS = 15.0 #in mA\n", + "V_GS_off = -5.0 #in V\n", + "V_GS = 0 #in V\n", + "\n", + "#CALCULATIONS\n", + "I_D = I_DSS*((1-(V_GS/V_GS_off))**2) #in mA\n", + "V_GS = -1 #in V\n", + "I_D1 = I_DSS*((1.0-(V_GS/V_GS_off))**2) #in mA\n", + "V_GS = -4 #in V\n", + "I_D2 = I_DSS*((1-(V_GS/V_GS_off))**2) #in mA\n", + "\n", + "#RESULTS\n", + "print('When V_GS=0, the drain current is =%.f mA ' %I_D)\n", + "print('When V_GS=-1V, the drain current is =%.2f mA ' %I_D1)\n", + "print('The interplanner spacing is =%.2f \u00c5' %I_D2)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "When V_GS=0, the drain current is =15 mA \n", + "When V_GS=-1V, the drain current is =9.60 mA \n", + "The interplanner spacing is =0.60 \u00c5\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.4, Page No 327" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "I_DSS = 20.0 #in mA\n", + "V_P = -8 #in V\n", + "g_mo = 5000.0 #in \u00b5s\n", + "V_GS = -4.0 #in V\n", + "\n", + "#CALCULATIONS\n", + "\n", + "I_D = I_DSS*((1-(V_GS/V_P))**2) #in mA\n", + "g_m = g_mo*(1-(V_GS/V_P)) #in \u00b5s\n", + "\n", + "#RESULTS\n", + "print('The value of drain current is =%.f mA ' %I_D)\n", + "print('The transconductance is =%.f \u00b5s' %g_m)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of drain current is =5 mA \n", + "The transconductance is =2500 \u00b5s\n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.5 Page No 327" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "\n", + "\n", + "#initialisation of variables\n", + "I_D1 = 10.0 #in mA\n", + "V_GS = -12.0 #in V\n", + "V_GSth = -3.0 #in V\n", + "\n", + "#CALCULATIONS\n", + "K = I_D1/( (V_GS-V_GSth)**2 ) #in mA/V\n", + "V_GS= -6 #in V\n", + "I_D = K*((V_GS-V_GSth)**2) #in mA\n", + "\n", + "#RESULTS\n", + "print('The value of I_D is =%.2f mA ' %I_D)\n", + "print('Approximation error')" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of I_D is =1.11 mA \n", + "Approximation error\n" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.7, Page No 327" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "V_GS = -2.0 #in V\n", + "V_P = -5.0 #in V\n", + "V_DS = V_GS-V_P #in V\n", + "I_DSS = 8.0 #in mA\n", + "\n", + "#CALCULATIONS\n", + "I_D = I_DSS*((1-(V_GS/V_P))**2) #in mA\n", + "\n", + "#RESULTS\n", + "print('The minimum value of V_DS is =%.f V ' %V_DS)\n", + "print('The drain current is =%.2f mA' %I_D)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The minimum value of V_DS is =3 V \n", + "The drain current is =2.88 mA\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.8 Page No 328" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "V_P = -2 #in V\n", + "I_DSS = 1.65 #in mA\n", + "I_D = 0.8 #in mA\n", + "V_DD = 24.0 #in V\n", + "\n", + "#CALCULATIONS\n", + "V_GS = V_P*(1- math.sqrt(I_D/I_DSS) ) #in V\n", + "g_mo = -(2*I_DSS)/V_P #in mS\n", + "g_m = g_mo*(1-(V_GS/V_P)) #in mS\n", + "\n", + "#RESULTS\n", + "print('The value of V_GS is =%.2f V ' %V_GS)\n", + "print('The value of g_m is =%.2f mS' %g_m)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of V_GS is =-0.61 V \n", + "The value of g_m is =1.15 mS\n" + ] + } + ], + "prompt_number": 6 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.9 Page No 328" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "V_P = 5.0 #in V\n", + "I_DSS = -40.0 #in mA\n", + "I_D = -15.0 #in mA\n", + "\n", + "#CALCULATIONS\n", + "V_GS = V_P*(math.sqrt(I_D/I_DSS)-1 ) #in V\n", + "\n", + "#RESULTS\n", + "print('The gate source voltage is =%.2f V' %(V_GS*-1))\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The gate source voltage is =1.94 V\n" + ] + } + ], + "prompt_number": 7 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.10, Page No 328" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "I_D1 = 1.9 #in mA\n", + "I_D2 = 1.0 #in mA\n", + "\n", + "#CALCULATIONS\n", + "del_I_D = I_D1-I_D2 #in mA\n", + "V_GS2 = -3.3 #in V\n", + "V_GS1 = -3.0 #in V\n", + "del_V_GS = V_GS1-V_GS2 #in V\n", + "g_m = del_I_D/del_V_GS #in mA/V\n", + "g_m = g_m * 10**3 #in \u00b5 mhos\n", + "\n", + "#RESULTS\n", + "print('The value of transconductance is =%.f \u00b5 mhos ' %g_m)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of transconductance is =3000 \u00b5 mhos \n" + ] + } + ], + "prompt_number": 8 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.11 Page No 329" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math \n", + "\n", + "#initialisation of variables\n", + "V_DS1 = 14.0 #in V\n", + "V_DS2 = 5.0 #in V\n", + "del_V_DS = V_DS1-V_DS2 # in V\n", + "I_D1 = 3.3 #in mA\n", + "I_D2 = 3 # in mA\n", + "\n", + "#CALCULATIONS\n", + "del_I_D = I_D1-I_D2 #in mA\n", + "r_d = del_V_DS/del_I_D #in k ohms\n", + "print('The drain resistance is =%.f k ohms' %r_d)\n", + "V_GS1 = 0.4 #in V\n", + "V_GS2 = 0.1 #in V\n", + "del_V_GS = V_GS1-V_GS2 #in V\n", + "I_D1 = 3.3 #in mA\n", + "I_D2 = 0.71 #in mA\n", + "del_I_D = I_D1-I_D2 # in mA\n", + "g_m = del_I_D/del_V_GS # in mA/V\n", + "g_m = g_m * 10**3 # in \u00b5mhos\n", + "\n", + "\n", + "#RESULTS\n", + "print('The transconductance is =%.f \u00b5mhos ' %g_m)\n", + "Miu =r_d*10**3*g_m*10**-6\n", + "print('Amplification factor is =%.f ' %Miu)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The drain resistance is =30 k ohms\n", + "The transconductance is =8633 \u00b5mhos \n", + "Amplification factor is =259 \n" + ] + } + ], + "prompt_number": 9 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.12 Page No 334" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "q = 1.6*10**-19 #in C\n", + "N_D = 10**15*10**6 #electrons/m^3\n", + "a = 3*10**-4 #in cm\n", + "a=a*10**-2 #in m\n", + "\n", + "#CALCULATIONS\n", + "Epsilon_o = (36 * math.pi * 10**9)**-1\n", + "Epsilon = 12*Epsilon_o\n", + "V_P = (q*N_D*((a)**2))/(2*Epsilon) #in V\n", + "print('Pinch off voltage is =%.2f V ' %V_P)\n", + "V_GS = 1.0 #in V\n", + "V_P = 2.0 #in V\n", + "b = a*( 1-math.sqrt(V_GS/V_P) ) #in m\n", + "b = b * 10**6 #in \u00b5m\n", + "\n", + "#RESULTS\n", + "print('The channel half width is =%.2f \u00b5m' %b)\n", + "# Note: In the book, the unit of channel half width is wrong." + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Pinch off voltage is =6.79 V \n", + "The channel half width is =0.88 \u00b5m\n" + ] + } + ], + "prompt_number": 10 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 8.13 Page No 335" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "\n", + "#initialisation of variables\n", + "I_DSS = 8.0 #in mA\n", + "V_P = -4.0 #in V\n", + "a = 3*10**-4 #in cm\n", + "N_D = 10**15 #in electrons/cm^3\n", + "I_D = 3.0 #in mA\n", + "\n", + "#CALCULATIONS\n", + "V_GS = V_P*( 1-math.sqrt(I_D/I_DSS) ) #in V\n", + "V_DS_sat = V_GS-V_P #in V\n", + "\n", + "\n", + "#RESULTS\n", + "print('The value of V_GS is =%.2f V' %V_GS)\n", + "print('The value of V_DS_sat is =%.2f V ' %V_DS_sat)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of V_GS is =-1.55 V\n", + "The value of V_DS_sat is =2.45 V \n" + ] + } + ], + "prompt_number": 11 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example No 8.14 Page No 335" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#initialisation of variables\n", + "V_P = -4 #in V\n", + "I_DSS = 9.0 #in mA\n", + "V_GS = -2.0 #in V\n", + "\n", + "#CALCULATIONS\n", + "I_D = I_DSS*(( 1-(V_GS/V_P) )**2) #in mA\n", + "\n", + "#RESULTS\n", + "print('The drain current is =%.2f mA ' %I_D)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The drain current is =2.25 mA \n" + ] + } + ], + "prompt_number": 12 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example No 8.15 Page No 335" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#initialisation of variables\n", + "I_DSS = 12.0 #in mA\n", + "V_P = -6.0 #in V\n", + "V_GS = -1.0 #in V\n", + "\n", + "#CALCULATIONS\n", + "g_mo = (-2*I_DSS)/V_P #in mA/V\n", + "g_m = g_mo*(1-(V_GS/V_P)) #in mS\n", + "\n", + "#RESULTS\n", + "print('The value of transconductance is =%.2f mS' %g_m)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of transconductance is =3.33 mS\n" + ] + } + ], + "prompt_number": 13 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example No 8.16 Page No 336" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#initialisation of variables\n", + "I_DSS = 10.0 #in mA\n", + "V_P = -5.0 #in V\n", + "V_GS = -2.5 #in V\n", + "\n", + "#CALCULATIONS\n", + "g_m = ((-2*I_DSS)/V_P)*(1-(V_GS/V_P)) #in mS .... correction\n", + "I_D = I_DSS * ((1-(V_GS/V_P))**2) #in mA\n", + "\n", + "\n", + "#RESULTS\n", + "print('The transconductance is =%.f mS ' %g_m)\n", + "print('The drain current is =%.2f mA ' %I_D)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The transconductance is =2 mS \n", + "The drain current is =2.50 mA \n" + ] + } + ], + "prompt_number": 14 + } + ], + "metadata": {} + } + ] +} \ No newline at end of file -- cgit