Wafer BOE Process Engineer — Yield & Quality Driver

STMicro; Singapore; On-site; SGD 68,000 - 90,000; Full time

Job summary

STMicroelectronics is seeking a detail-oriented Buffered Oxide Etch Wafer Process Owner to lead and optimize the BOE wet etch step for wafer patterning and oxide opening. You will partner with lithography, etch, integration, metrology, yield, and manufacturing teams to maintain process stability and drive improvements.

The role requires a solid background in chemical engineering and at least 2 years in semiconductor wet processing, with a focus on BOE chemistry, wet etch behavior, and process

Qualifications

• Experience in semiconductor wet processing, oxide etch, or pattern transfer applications.
• Strong understanding of BOE chemistry, wet etch behavior, and process control.
• Experience with root cause analysis, SPC, and DOE methodologies.

Responsibilities

• Support process characterization, qualification, and continuous improvement activities.
• Collaborate with lithography, etch, integration, yield, and quality teams to resolve issues.
• Conduct root cause analysis for excursions, yield loss, and defectivity concerns.

Skills

Semiconductor wet processing

Root cause analysis

DOE methodologies

Process control

Cross-functional teamwork

Education

Chemical engineering degree

Job description

STMicroelectronics is seeking a detail-oriented Buffered Oxide Etch Wafer Process Owner to lead and optimize the BOE wet etch step for wafer patterning and oxide opening. You will partner with lithography, etch, integration, metrology, yield, and manufacturing teams to maintain process stability and drive improvements.

The role requires a solid background in chemical engineering and at least 2 years in semiconductor wet processing, with a focus on BOE chemistry, wet etch behavior, and process