Yuh Hui Chai

Chemical Mechanical Polishing (CMP) Module – Advanced Development Technology Singapore (ADTS), Alpha Technology Engineering (ATE) Team

Singapore

About

Process & Equipment Engineer with 3 years of experience in Process Optimization and Advanced Technology Development. Proven track record in driving yield improvement, cost reduction and process efficiency through cross-functional collaboration. Proficient in statistical analysis, data visualization, and root cause analysis. Committed to leverage engineering and analytical expertise to contribute to operational excellence.

Experience

  • Process Equipment Engineer at Micron Technology
    Jun 2022 - Present · 4 yrs 1 mo

    Process Control Optimization - Conducted Design of Experiments (DOEs) to develop a new process control model, achieving ~67% CpK improvement and eliminate variation from upstream factors - Ensured all process control changes were supported by change point monitoring data and documented in a structured and traceable manner Scratch Reduction - Led root cause analysis and troubleshooting for scratch-related yield loss, designed and implemented scratch reduction initiatives from pilot to high-volume manufacturing stages - Achieved 0.02% yield gain without compromising cost efficiency First-of-a-Kind (FOAK) Workstation Qualification - Developed Best-Known-Methods (BKM) for FOAK tool qualification, conducted failure analysis, and implemented iterative improvements - Delivered $0.02/unit cost savings, 30% throughput increase, and eased capacity constraints on legacy workstations New Technology Node Start-up - Represented CMP module in the new node start-up taskforce; drove clear task ownership, cross-functional alignment (Process Integration, Manufacturing), and timely milestone execution - Partnered with Technology Development (TD) to advance process maturity, resolve new product issues, and support New Product Introduction (NPI)

  • Private Tutor at Self-employed
    Feb 2018 - Jun 2022 · 4 yrs 5 mos

    - ­Using different pedagogical skills to tailor to students’ learning capability such as introducing mindmaps to consolidate thought process, analogies that are more relatable to daily life to explain concepts better. - Encourage and motivate students to work harder and be more confident in their capabilities.

  • American Chemical Society - NUS Student Chapter (2 yrs 5 mos)
    • Deputy Program Director
      Feb 2021 - Jan 2022 · 1 yr

      - Reached out to ACS student chapters from other universities to co-organize sister chapter interaction events - Liaised with A*STAR to plan a virtual industry visit for chemistry undergraduates to find out more about career path in A*STAR - Reached out to alumni working in industries or research and invite them for talk on post-graduate opportunities

    • Program Team Member
      Sep 2019 - Feb 2021 · 1 yr 6 mos

      - Mentorship Program, introduce freshman to University curriculum and campus life, encourage and provide feedback for queries raised by freshman regarding to chemistry major - Assist in planning of events relating to Chemistry industry in school, communication between the team, ensure smooth running of events (e.g. ChemNUS Connects for Future Readiness - Graduate Studies Talk on 22 Sept 2020)

  • Teaching Assistant at National University of Singapore
    Jan 2020 - May 2021 · 1 yr 5 mos

    - Provided academic support and consultation to students, responding to inquiries, clarifying course content, and fostering a positive and engaging learning environment - Assisted in lab sessions, grading, and academic support for students. Facilitated lab sessions, and provided constructive feedback to faculty and continuously improve the module content and learning experience

  • Teaching Assistant at KUMON Singapore - where every child can shine
    May 2019 - Aug 2019 · 4 mos

    - Teaching and guiding students with education level ranged from nursery to secondary school, monitor students’ learning progress to tailor homework that is suitable for each individual - Assisted in organizing the Advanced Student Honour Roll, a prize presentation for students with outstanding academic performance. Helped out in many preparatory stages of the event such as photo-taking, preparing prizes and souvenirs, ensure smooth running of events, regulating human traffic and arranging students’ presentation sequence to express gratitude to their parents