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AppeL Leong is a skilled Process Engineer at SunEdison Semiconductor since February 2012, specializing in final and post-polish cleaning processes, packaging, and tool performance monitoring using Statistical Process Control (SPC). Previously, from September 2009 to February 2012, AppeL served as a QA Lab Engineer at SunEdison, where responsibilities included startup and qualification of lab tools, method development, calibration of ICPMS, tool troubleshooting, establishment of Standard Operating Procedures (SOP), and management of lab technicians. AppeL holds a Bachelor's Degree in Materials Engineering from the University of Malaya, earned in 2009.