Ya Ching Chang Email and Phone Number

• Performed troubleshooting and resolving system and recipe related issues to help customers reduce production downtime and increase production capacity• Performed statistical data analysis and executed experimental conditions (DOE) when troubleshooting issues and recommended solutions to customers during technical presentations• Created recipes to support new applications• Communicated and collaborated with service team for new installations and troubleshooting of hardware issues• Engaged and collaborated with software teams to improve product performance and user experience by testing new features to resolve technical challenges at customer sites• Documented best known methods based on lessons learnt from field experience

• Participated in weekly New Product Meetings and resolved Array-related issues with Project Team and process engineers across functions • Risk assessed process constraints with R&D engineers and process engineers during Design Review and devised better product designs together• Liaised with Process Engineers (PVD, CVD, Photolithography & Etch) to prepare all the process conditions and set up process flow in system for New Product Introduction• Coordinated Design Verification Trials with Manufacturing Supervisors and Process Engineers to deliver customer samples with good quality on time• Prepared control plan and monitored key product parameters from SPC chart, as well as PpK and CpK• Monitored yield, initiated defect investigation and collaborated with Process and Integration Engineers to execute DOE and implement validated countermeasures for yield improvement• Compiled new product documents and handover new products to the Mass Production Team