Passivated emitter and rear contact (PERC) technology is becoming increasingly common in mainstream PV cell production. A major advantage of the technology is that it can be deployed and an upgrade to many existing cell production lines. However, the technology brings with it some challenges for cell manufacturers including in the inspection of the cell rear side after passivation, laser opening, and firing. Germany's ISRA Vision claims to have developed an inspection tool that can accurately detect faults that may occur with the laser opening and contacting process, ...Den vollständigen Artikel lesen ...