Onsite Test & Yield Process Engineer – Semiconductors

Coherent Corp.; Calamba; On-site; PHP 600,000 - 900,000; Full time

Job summary

Coherent Corp. in the Philippines is seeking an experienced engineer to optimize and sustain test processes for chip on carrier/submount products. You will oversee electrical, optical, and burn-in testing, analyze data to identify trends, and drive improvements in yield and stability.

The role requires 3–5 years in semiconductor manufacturing, hands-on test experience, and proficiency with Excel, JMP, SQL, and Power BI. It is a 100% onsite position offering growth and training opportunities.

Qualifications

• Bachelor’s degree in Electronics, Electrical, Mechanical or Chemical Engineering or equivalent science courses.
• 3–5 years of experience in semiconductor or optoelectronics manufacturing.
• Hands-on experience in test processes, test/burn-in equipment qualification, process validation, data analysis and troubleshooting; Lean Six Sigma is a plus.

Responsibilities

• Optimize, qualify, and sustain electrical, optical, thermal, performance, and burn-in test processes for chip on carrier/submount products.
• Control test parameters by monitoring data to identify trends, abnormal results, equipment drift, reliability concerns, and yield improvements.
• Qualify test and burn-in equipment, fixtures, software, and measurement systems through validation, GR&R, and process capability analysis.
• Lead root-cause investigations and preventive/corrective actions for test failures and equipment issues.
• Conduct DOE, process capability studies, SPC, GR&R, and data analysis to improve stability, yield, and productivity.
• Support equipment qualification, new product introduction, production ramp-up, documentation, and process training.

Skills

Test methods

Data analysis

SPC

GR&R

DOE

Troubleshooting

Cross-functional teamwork

Technical communication

Education

Bachelor’s degree in Electronics / Electrical / Mechanical / Chemical Engineering

Tools

Excel

JMP

SQL

Power BI

Job description

Coherent Corp. in the Philippines is seeking an experienced engineer to optimize and sustain test processes for chip on carrier/submount products. You will oversee electrical, optical, and burn-in testing, analyze data to identify trends, and drive improvements in yield and stability.

The role requires 3–5 years in semiconductor manufacturing, hands-on test experience, and proficiency with Excel, JMP, SQL, and Power BI. It is a 100% onsite position offering growth and training opportunities.