Patent Document ID: 20050211890
Application ID: 11037105
Patent Flag: 0

Claim One:
1. A semiconductor device evaluation support method which utilizes a computer system to evaluate resistivity against an error in the semiconductor device caused by cosmic ray neutrons, wherein, a storage unit in said computer system stores multiple spectrum data of white neutrons with spectrum shapes different from one another, and multiple SEE (Single Event Effect) counts obtained by a white neutron method conducted by use of each of said multiple spectrum data, and a computing unit in said computer system carries out, a first step for reading out the spectrum data from said storage unit, dividing the data into multiple energy groups, calculating a total flux of each of the energy groups, and storing the total flux in said storage unit, is performed with respect to each of said multiple spectrum data, and a second step for reading out from said storage unit, the SEE counts and the total flux with respect to each of said multiple spectrum data, substituting the SEE counts and the total flux into a simultaneous equation, where a product of matrix elements indicating the total flux of each of the energy groups as to each of said multiple spectrum data and vectors indicating SEE cross section of each of the energy groups represents the SEE count as to each of said multiple spectrum data, thereby calculating the SEE cross section as to each of said energy groups, and storing the SEE cross section in said storage unit.