Patent ID: 9645097
Date: 2017-05-09
CPC Classifications: G01N,G03F,H01L

Claim:
1. A system for inspecting and processing semiconductor wafers, the system comprising: an edge detection system for receiving each wafer that is to undergo a photolithography process in a photolithography system prior to the photolithography process being performed on such wafer, wherein the edge detection system comprises: a photolithography system for receiving from the edge detection system each wafer that has been found to be within specification, wherein the edge detection system is coupled in-line with the photolithography system, wherein the analyzer of the edge detection system is further configured to determine an alignment position of each wafer based on the output radiation collected and sensed by the at least one collection module and such analyzer is further configured to provide such alignment position to the photolithography system, and wherein the lithography system is further operable to receive the alignment position of each wafer from the edge detection system and use such received alignment position to align a reticle with respect to each wafer.