Patent ID: 6208751
Filing Date: 2001-03-27
Classification: H01L

Abstract:
A cluster tool for testing substrates during a production process after critical steps in manufacturing and locating defects on the substrates utilizing a plurality of tools coupled via an automation platform, comprising:an interface receiving storage media, each having a plurality of substrates contained therein;an inspection tool inspecting the substrates and delivering defect maps indicative of suspected defect locations on each of said substrates, wherein the defect location includes defect information;at least one of a second tool selected from the group of inspection tool, metrology tool and a review tool;the automation platform coupled to said interface, said inspection tool, and to the at least one of the second tool, and transferring substrates between the tools, said automated platform being moveable to a plurality of stations and being operative to deliver and deposit a first wafer for inspection by one of said tools and operative during said inspection of said first wafer to simultaneously retrieve a second wafer; andan adjustment tool which adjusts the production line,wherein each of said inspection tool and second tool includes a stage for supporting said substrate and wherein defect information is provided in real-time to allow adjustment of the production line to improve yield.