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{
"cells": [
{
"cell_type": "markdown",
"metadata": {
"collapsed": true
},
"source": [
"# Chapter 12 : Integrated circuits and micro electromechanical Systems "
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example number 12.1, Page Number 144"
]
},
{
"cell_type": "code",
"execution_count": 15,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Effective Resistance= 10.17 k-ohm \n"
]
}
],
"source": [
"#importing modules \n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"l=100 #length of resistor in micro-m\n",
"w=10 #width of resistor in micro-m\n",
"R=0.9 #sheet resistance in k-ohm/n \n",
"End_points=0.65*2 #Total contribution of two end points\n",
"\n",
"#Calculations\n",
"Total_squares=l/w\n",
"T=Total_squares+End_points #Total effective sqaures\n",
"Reff=T*R\n",
"\n",
"#Result\n",
"print \"Effective Resistance= %0.2f k-ohm \" %Reff"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example number 12.2, Page Number 144"
]
},
{
"cell_type": "code",
"execution_count": 10,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Capacitance per unit area= 6.90e-11 F/cm^2 \n"
]
}
],
"source": [
"#importing modules \n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"epsilon_0=8.85*10**-14 #in F/cm\n",
"epsilon_i=3.9 #in F/cm\n",
"tox=0.5*10**-4 #in cm\n",
"\n",
"#Calculations\n",
"C=(epsilon_0*epsilon_i)/tox\n",
"C=C/10**2 #converting from pF to F\n",
"\n",
"#Result\n",
"print \"Capacitance per unit area= %.2e F/cm^2 \" %C"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example number 12.3, Page Number 145"
]
},
{
"cell_type": "code",
"execution_count": 9,
"metadata": {
"collapsed": false
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Sheet resistance= 250 ohm\n",
"\n",
"average resistivity= 0.025 ohm-cm\n"
]
}
],
"source": [
"#importing modules \n",
"import math\n",
"from __future__ import division\n",
"\n",
"#Variable declaration\n",
"Length=4 #in micro-m\n",
"Width=1 #in micro-m\n",
"R=1000 #in ohm\n",
"xj=1*10**-4 #junction depth in cm\n",
"\n",
"#Calculations\n",
"N=Length/Width\n",
"R0=R/N\n",
"rho=R0*xj\n",
"\n",
"#Result\n",
"print\"Sheet resistance= %i ohm\\n\" %R0\n",
"print\"average resistivity= %0.3f ohm-cm\" %rho"
]
}
],
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"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
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"name": "ipython",
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"file_extension": ".py",
"mimetype": "text/x-python",
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