As Product Test Engineering Sr. Section Manager, 15+ years' experience in OSAT, lead team's engineers to success NPI and HVM, managing focus on listen and communication, catch key point and arrange / integrate resource. Team work is the culture of my team, not only strong backup mechanism but also build up growing environment.Test engineering experience not only Wafer Sort and Final Test but also WLCSP testing,succeeded to implement post sawing testing, singulated WLP after sawing and T/R in DPS,integrate Bumping and DPS resource, to co-work with customer for yield improvement (Ex. FA/Cross-section).Process change experience on PCN handling and relocation factory.HVM management, focus on test program/map management, automation / prevention/detection by system, analysis /induction/convincing for improvement.HVM key index driving review: OEE/cycle time/hold lot/yield/re-test rate/re-cover rate/pin life time control by touchdown/MTTR/cost.Certified for ISO 9000/ISO 16949/ISO 14000, accompanying audit with customer.