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Diffstat (limited to 'Integrated_Electronics/Chapter19.ipynb')
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diff --git a/Integrated_Electronics/Chapter19.ipynb b/Integrated_Electronics/Chapter19.ipynb new file mode 100755 index 00000000..1812da22 --- /dev/null +++ b/Integrated_Electronics/Chapter19.ipynb @@ -0,0 +1,249 @@ +{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 19 : Semiconductor-Device Physics"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 19.1, Page No 808"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "sg=0.971*10**3 #g/cm^3 specific gravity\n",
+ "w=22.99*1.66*10**-27 # Weight of a sodium atom\n",
+ "\n",
+ "#Calculations\n",
+ "n=sg/w\n",
+ "Ef=3.64*10**-19*(n**(2.0/3))\n",
+ "\n",
+ "#Results\n",
+ "print(\"The value of n is %.2f /m^3 x 10^28 \" %(n/10**28))\n",
+ "print(\"The value of Ef is %.2f eV\" %(Ef))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The value of n is 2.54 /m^3 x 10^28 \n",
+ "The value of Ef is 3.15 eV\n"
+ ]
+ }
+ ],
+ "prompt_number": 38
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 19.2, Page No 810"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "E=0.05 #eV\n",
+ "\n",
+ "#Calculations\n",
+ "NE=6.82*10**27*(E**(1.0/2))\n",
+ "\n",
+ "#Results\n",
+ "print(\"The value of NE is %.2f X 10^27 /m^3 \" %(NE/10**27))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The value of NE is 1.52 X 10^27 /m^3 \n"
+ ]
+ }
+ ],
+ "prompt_number": 39
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 19.3, Page No 812"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "KE=0.26*1.6*10**-19 #j kinetic energy\n",
+ "m=9.18*10**-31\n",
+ "\n",
+ "#Calculations\n",
+ "Vav=math.sqrt((2.0*KE)/m)\n",
+ "\n",
+ "#Results\n",
+ "print(\"The value of Vav is %.2f x 10^5\" %(Vav/10**5))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The value of Vav is 3.01 x 10^5\n"
+ ]
+ }
+ ],
+ "prompt_number": 40
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 19.4, Page No 815"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "ni1=1.5*10**10 #cm^3\n",
+ "T2=873.0 #k\n",
+ "T1=300.0 #k\n",
+ "Eg0=1.0\n",
+ "\n",
+ "\n",
+ "\n",
+ "#Calculations\n",
+ "ni2=math.sqrt((ni1**2)*(T2/T1)*math.exp((1.21/8.625*10**-5)*(-(1/T2)+(1/T1))))\n",
+ "\n",
+ "#Results\n",
+ "print(\"The value of ni2 is %.2f x 10^17 cm^3\" %(ni2/10**10))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The value of ni2 is 2.56 x 10^17 cm^3\n"
+ ]
+ }
+ ],
+ "prompt_number": 41
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 19.5, Page No 817"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "#initialisation of variables\n",
+ "kT=0.026\n",
+ "Nc=2.89*10**19\n",
+ "Nd=10**16\n",
+ "\n",
+ "#Calculations\n",
+ "Ef=kT*(math.log((Nc/Nd),2))\n",
+ "\n",
+ "#Results\n",
+ "print(\"The value of Ef is %.2f eV\" %(Ef))"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The value of Ef is 0.30 eV\n"
+ ]
+ }
+ ],
+ "prompt_number": 42
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 19.6, Page No 830"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "import math\n",
+ "\n",
+ "#initialisation of variables\n",
+ "I1=1.0 #mA\n",
+ "Vt=26.0 #mV\n",
+ "tP=10**-6\n",
+ "\n",
+ "#Calculations\n",
+ "g=(I1/Vt)\n",
+ "Cd=(g*tP)/2\n",
+ "\n",
+ "#Results\n",
+ "\n",
+ "print(\"The value of Cd is %.2f nF\" %(Cd*10**9))\n"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "The value of Cd is 19.23 nF\n"
+ ]
+ }
+ ],
+ "prompt_number": 43
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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