Li Yuan Tso
Technical Operation Process Engineer
New Taipei,NWT
Summary
Accomplished Process Engineer with more than 15 years in LCD manufacturing industry and 4 years in AR glasses waveguide, enforcing compliance and improving steps in accomplishing goals. Successful and driven individual committed to proactive planning and goal-oriented work.
Overview
21
21
years of professional experience
Work History
Technical Operation Process Engineer
Meta
09.2023 - 06.2026
- Spearheaded the SRG waveguide supplier bring-up process in China and Taiwan, ensuring seamless integration.
- Led process development initiatives focused on systematic FACA and yield improvement for AR glasses production.
- Collaborated with cross-functional teams to enhance manufacturing efficiency and product quality.
- Developed and implemented robust quality assurance protocols, ensuring product reliability and consistency.
Technical Operation Process Engineer
Meta
07.2022 - 08.2023
- Coordinate with contract supplier Plessey Semiconductor in UK on uLED display engine process development for AR glasses display engine.
- Streamlined cross-functional collaboration processes, improving project timelines and communication effectiveness.
Principal Engineer - OLED array new product
AUO Singapore
01.2019 - 01.2022
- Ink Jet Print (IJP) OLED process development
- Introduce 0.3mm thickness substrate for in cell touch panel
- Wearable OLED product
- Micro lens for VR product
- Car use OLED lighting product
- Ink Jet Print (IJP) OLED process development
Principal Engineer - OLED metal mask team
AUO Singapore
01.2018 - 01.2019
- Project of Mask integration stocker online auto running.
Principal Engineer - LCD New Product
AUO Singapore
01.2014 - 01.2018
- FHD in cell touch product process develop.
- High PPI (>1000) LCD VR product development.
- FHD product introduce
- Thinner glass (0.4mm) evaluation
Senior Engineer-Etch
AUO Singapore
01.2011 - 01.2014
- New machine setup and fine tune for MANZ, DNS, DMS stripper (photo-resist remove) and ITO / Ag (OLED anode) etcher.
- Yield improve for ILD peeling (yield loss 10%->0.02%,LSS certificated 2012 AFPD)
- Reduce stripper chemical usage 75% (.LSS certificated 2013 AFPD)
- Increase strip machine capacity 25% .
- OLED vertical bend mura which caused by strip process.(100% to 0%)
- Improve Poly silicon etch process variation for OLED product
- Resolved Ag etch (OLED anode) mura (100% to 0%)
- Reduce Ag etch (OLED anode) chemical usage 60%
- Mentor of new coming process engineer
- LSS green belt certification:
- (1)Stripper chemical usage reduction.(reduce 75% cost down 2 million USD/year, 1st place of 2013)
- (2)ILD peeling improve.(yield loss 10% to 0.02%, 1st place of 2012)
Senior Engineer- LTPS and a-Si Etch process
AUO Taiwan
01.2007 - 01.2011
- ITO rework process improvement for semi-reflective product (AL peeling issue).
- Improve metal layer mura caused by strip process (photo-resist remove).
- PL rework process (polymerized, after post bake )
- Reduce 10% yield loss caused by ITO residue.
- Improve ILD wet etch taper profile by optimize SiOx/SiNx selectivity.
- Reduce ion implant process ESD from 1% to 0.02%
- Ion implanter machine down time reduce 40%
- - Process quality control
- (1) PFMEA
- (2) SPC
- (3) MSA
- (4) External audit
Research Assistant
Kaohsiung Veterans General Hospital –Division Nephrology
01.2005 - 01.2007
- Mechanisms of recovery in injured kidney.
Education
Certificate of Stem Cell Techniques -
National Cheng Kung University
Tainan, Taiwan01-2006
Master of Science - Biotechnology
National Dong Hwa University
Hualien, Taiwan01-2006
Proteomic Analysis Training Course Certification - undefined
Academia Sinica
Taipei, Taiwan01-2004
Bachelor of Science - Chemical Engineering
Tamkang University
Taipei, Taiwan01-2002
Skills
Data analysis
NTI process development
DOE for process improvement and process issue FACA
Process and quality control for high volume mass production line
Team collaboration
Production planning
Timeline
Technical Operation Process Engineer
Meta
09.2023 - 06.2026
Technical Operation Process Engineer
Meta
07.2022 - 08.2023
Principal Engineer - OLED array new product
AUO Singapore
01.2019 - 01.2022
Principal Engineer - OLED metal mask team
AUO Singapore
01.2018 - 01.2019
Principal Engineer - LCD New Product
AUO Singapore
01.2014 - 01.2018
Senior Engineer-Etch
AUO Singapore
01.2011 - 01.2014
Senior Engineer- LTPS and a-Si Etch process
AUO Taiwan
01.2007 - 01.2011
Research Assistant
Kaohsiung Veterans General Hospital –Division Nephrology
01.2005 - 01.2007
Bachelor of Science - Chemical Engineering
Tamkang University
Proteomic Analysis Training Course Certification - undefined
Academia Sinica
Master of Science - Biotechnology
National Dong Hwa University
Certificate of Stem Cell Techniques -
National Cheng Kung University