Ch-11 : Microwave Integrated Circuits

Page Number: 595 Example 11.1

In [1]:
from __future__ import division 
#Given
fabc=10000  #Rs/waffer
c=100 
y=40/100  
coc=fabc/(y*c) 
#Cost of one chip
print 'Cost of one chip:' ,coc,'Rs'

#Market Cost
mc=2*coc 
print 'Market costof one chip:' ,mc,'Rs'

Cost of one chip: 250.0 Rs
Market costof one chip: 500.0 Rs

Page Number: 595 Example 11.2

In [2]:
from math import sqrt, floor
#Given
c=5000  #Rs
S=0.6  #cm
#Sides
x=3  #cm
y=2.54  #cm 
#break even cost
bec=250 
#hence, chips/waffers needed
cpw=c/bec 
D=x*y 
#For given Area, atleast 40 chips are required
n=2*cpw 

#Diameter
N=D/(sqrt(2)*S) 
#Lower round off
NN=floor(N) 
#Chips possible
cp=NN**2 

#Yield
Y=(n/cp)*100  #Percent
print 'Yield:',Y, '%'

Yield: 62.5 %