Patent Document ID: 20040054432
Application ID: 10651665
Patent Flag: 0

Claim One:
1. A method for semiconductor dice on a wafer in a process comprising: determining defects on said semiconductor dice on said wafer; classifying each of said defects by size and location, said determining and said classifying comprising classifying each of said defects into one of size range populations of defects; assigning a weight to said each of said defects representing an estimated effect of said each of said defects on die yield for said semiconductor dice; determining an estimated die yield loss (DYL) for each die of said semiconductor dice based on number and weight of said defect(s) on said each die of said semiconductor dice, determining said estimated die yield loss (DYL) including calculating an estimated die yield loss having lower and upper limits; summing all said DYL of said semiconductor dice on said wafer to obtain a wafer yield loss (WYL); subdividing the defects into a plurality of size range populations of defects for said semiconductor dice; and determining a relative contribution of each size range population of defects of said plurality of said semiconductor dice to said wafer yield loss WYL.