Patent ID: 6265232
Filing Date: 2001-07-24
Classification: H01L,Y02P

Abstract:
A method for processing integrated circuit semiconductor dice on a wafer in a manufacturing process for said dice, said method comprising:inspecting said integrated circuit semiconductor dice on said wafer to determine defects thereon and classifying each of said defects by size and location, said inspecting and classifying comprising classifying said 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 integrated circuit semiconductor dice;determining an estimated die yield loss (DYL) for each die of said integrated circuit semiconductor dice based on number and weight of said defect(s) on each said die;summing all DYL of said integrated circuit 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 integrated circuit semiconductor dice; anddetermining a relative contribution of each size range population of defects of said plurality for said integrated circuit semiconductor dice to wafer yield loss WYL.