Patent ID: 6820021
Filing Date: 2004-11-16
Classification: G01R

Abstract:
A method of testing an electrical device to determine a range of combinations of values of N parameters for which the device functions properly, the method comprising:defining a square plot region comprising a plurality of operating points each corresponding to a particular combination of values of the N parameters, wherein a length of each side of the plot region is 2n-i+1 operating points, wherein is initially zero; incrementing i by one; subdividing the square plot region into four overlapping square regions, wherein a length of each side of each square region is 2n-i+1; testing the electrical device using the combination of values of the N variable parameters corresponding the operating points located in each corner of each square region; and for each square region with respect to which the device does not function in the same manner at each corner operating point thereof, repeating the incrementing, subdividing and testing.