Joonho Gha
Phoenix,Arizona
Summary
Experienced Yield Engineer with 3 years in semiconductor production, specializing in defect reduction and wafer yield optimization. Skilled in back-end process management, quality standards improvement, and data analysis. Demonstrates strong leadership, collaboration, and multitasking abilities. Also, skilled field engineer with hands-on experience in installation processes, testing machines, and maintaining accurate reports.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Yield Engineer
TSMC
Phoenix, United States
03.2021 - Current
- Oversee production to reduce defects, improve wafer yields, to ensure high-quality semiconductor products
- Enhance YED review sampling, and identify and resolve critical weaknesses for better yield performance
- Manage back-end processes in film groups, and maintain seamless operations and quality standards
- Lead Back End Yield Tile process, identify failures, and collaborate with Process Integration for solutions
- Optimize defect detection, elevate wafer yield performance, and ensure product excellence
- Manage Macro data in the system to collect and analyze the majority weakness in the non-patterning group production
- Maintain CIRCL scan tool (BS/BV scan), collaborate with other Metrology teams to identify its weaknesses and enhance stability.
KNNP Practitioner Internship
KOREA HYDRO & NUCLEAR POWER COMPANY
08.2019 - 09.2019
- Facilitated Practitioners by interpreting presentations from CEC and other renewable-related companies
- Designed strategic approaches for applying renewable energy systems in Korea based on insights from the U.S
- Renewable energy system in California.
Education
Master's degree - Materials Science & Engineering
UCLA
01.2020
Bachelor of Engineering (B.E.) - Materials Science Engineering
UCLA
01.2018
Skills
- Leadership Management
- Product Development
- Microsoft Excel
- Microsoft Word
- Research
- Customer Service
- Microsoft Office
- Public Speaking
- Centrifugation
- Defect Detection analysis
- Wafer Yields Analysis
- Macro Data Analysis
- Renewable Energy Systems
- Cost Factors Analysis
Personal Information
- Nationality: South Korean
Languages
- English, Expert
- Korean, Expert
- Chinese, Skillful
Certification
- VOYA L2 KLA Certification awarded by TSMC
- ENL2PRO L1 KLA Certification awarded by TSMC
- TEM (Transmission Electron Microscopy) analysis Certification awarded by TSMC
Timeline
Yield Engineer
TSMC
03.2021 - Current
KNNP Practitioner Internship
KOREA HYDRO & NUCLEAR POWER COMPANY
08.2019 - 09.2019
Master's degree - Materials Science & Engineering
UCLA
Bachelor of Engineering (B.E.) - Materials Science Engineering
UCLA
- VOYA L2 KLA Certification awarded by TSMC
- ENL2PRO L1 KLA Certification awarded by TSMC
- TEM (Transmission Electron Microscopy) analysis Certification awarded by TSMC
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