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Work Background
Renesas Electronics Corporation - AsiaSr. Principal Offshore Assembly Sustaining Engineer (Team Lead / Asst. Manager)
Jun. 2023 - Sep. 2025Taichung City, TaiwanKey Qualifications:
- 30+ years of semiconductor IC assembly experience
• Directed subcontractor management for external manufacturing plants supporting semiconductor assembly
• Led a regional team of offshore assembly engineers across Southeast Asia, fostering collaboration and high performance
• Established and aligned annual team goals with corporate growth objectives
• Developed and executed strategic cost-reduction initiatives, partnering with OSATs to ensure stable delivery, timely issue resolution, and cost-effective production
• Standardized best-known methods (BKMs) across OSATs to drive measurable benefits
• Oversaw material readiness reviews post-product development and ramp-up phases
• Ensured compliance with company policies and objectives, guiding team contributions toward organizational success
• Cultivated a high-performance team culture emphasizing efficiency, quality, service, and resource optimization
• Implemented CAPA processes, root cause analysis, and continuous improvement programs with thorough documentation until closure
• Supported audit readiness and execution across all OSATs and subcontractor
Renesas Electronics Taiwan Co. LtdPrincipal Offshore Assembly Sustaining Engineer (Technical Coordinator)
Sep. 2021 - May. 2023Taichung City, Taiwan• Coordinated project handovers with NPI and advanced package development teams
• Conducted risk assessments and technical audits at OSAT facilities
• Updated documentation for process, tooling, and material changes
• Actively participate in a customer development project
• Mentoring with subcon engineering resources and technical capability
• Directly co-work with subcon for CAPA, root cause analysis & continuous improvement until closure
• Drive subcon for cost saving initiatives
Dialog Semiconductor GmbHPrincipal Offshore Assembly Sustaining Engineer
Jun. 2011 - Aug. 2021Taichung City, Taiwan• Drive supplier and subcontractor collaboration to ensure timely delivery of project milestones and compliance with company standards
• Coordinate reporting with headquarters, providing accurate updates on project progress and performance
• Support mass production ramp-ups on-site, ensuring smooth transitions from qualification to full-scale manufacturing
• Evaluate subcontractor performance through CIP reviews and KPI monitoring, driving continuous improvement across sites
• Deliver training and guidance to subcontractor personnel on specialized requirements, strengthening operational capability
• Lead quarterly reviews and site visits, aligning subcontractor roadmaps with company strategy and fostering innovation in packaging solutions
• Ensure documentation and process adherence, maintaining compliance and enabling efficient handovers to mass production
Dialog Semiconductor GmbHSr. Offshore Assembly Sustaining Engineer and Project Development Engineer
May. 2009 - Jun. 2011Taichung City, Taiwan• Conduct data analysis, evaluations, and experiments (DOE) while maintaining a strong presence at subcontractor production lines to ensure successful mass production, new product qualification, and product transfers
• Collaborate with Quality, Test, and supplier teams to identify, implement, and measure continuous improvement initiatives
• Monitor supplier open/short issues daily and provide weekly status updates to management, ensuring transparency and accountability
• Develop, implement, and refine supplier performance indices to drive quality improvements, yield optimization, process consistency, and continuous improvement (CI) initiatives
• Resolve and manage supplier Corrective Action Requests (CAR) and Non‑Conformance Lots (NCL) in partnership with Supplier Quality Engineers (SQE)
• Participate in supplier assembly compliance checks and system audits, coordinating with SQE and relevant stakeholders to ensure adherence to standards
• Train subcontractor personnel on specialized requirements, strengthening technical capability and compliance
• Foster strong working relationships with suppliers, maintaining open communication and collaboration
• Take ownership of subcontractor assembly issues, ensuring timely resolution and alignment with company objectives
• Uphold professional conduct in line with the company’s business code of ethics, promoting integrity and accountability in all supplier engagements
ASE GroupSr. Process Engineer
Aug. 1999 - Dec. 2008Kaohsiung City, TaiwanPosition : Excempt Level Sr. Packaging Engineer. •Spearhead the 0.6 mil Au wire diameter technology development
•Review and update process engineering specifications on a periodic basis
•Responsible for product design/feasibility study and performs technology assessment •Originate new specifications to cover new methodologies, procedures, design rule and system
concerning FBGA / PBGA / HSBGA
•Represents Process Engineering in all customers systems and compliance audits •Represents Process Engineering in all customers technical discussions about Stack die, SIP PBGA, and HSBGA packages
•Handle all Process Engineering related issue from design qualification to production mode by proper documentation till closure including package and board level reliability testing
•Handle customers issues and complaints on behalf of process engineering
•Support all customers request regarding Package & Process Characterization
•New material /process qualification for development and improvement as well
•Handle engineering reports presentations and/or reviews with customers
•Drives mass production parts to yield improvement as long term goal for the team
•Present materials and/or process cost reduction programs to customers for acceptance and approval •Direct customer interfacing for any project development and technical issue resolution
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