Process Engineer, Backend

Detection Technology Oyj; Bei; On-site; INR 2,550,000 - 3,967,000; Full time

Job summary

Detection Technology Plc. in Beijing is seeking a Process Engineer, Backend to own wafer- and die-level visual inspection standards and to drive AOI implementation across production.

You will collaborate with project management, R&D, production, and quality teams to validate new wafer processes, analyze mass production issues, and push improvements while reducing labor intensity. The role focuses on developing AOI recipes, improving defect detection, and ensuring alignment between AOI and

Qualifications

• Bachelor degree in microelectronics, materials, physics, optics, mechanical engineering, automation or related fields.
• 2+ years of experience in visual inspection (VI) or AOI in semiconductor manufacturing.
• Familiar with AOI equipment operation and recipe writing.
• Strong data analysis and problem-solving capabilities.

Responsibilities

• Own wafer- and die-level visual inspection standards based on downstream impact.
• Own documentation including PFMEA, control plans and work instructions.
• Support wafer process validation and qualification activities.
• Perform defect source attribution and provide feedback to SQE and R&D.
• Summarize VI defect reports and develop action trackers.
• Apply Six Sigma tools to improve process quality.
• Lead in defining new equipment specifications, installation and buyoff.
• Develop, qualify and optimize AOI recipes to improve detection rates.

Skills

Visual inspection

AOI basics

Data analysis

Education

Bachelor degree in microelectronics or related fields

Tools

AOI equipment

Minitab

Job description

With us You do
WORK THAT MATTERS

We are the most trusted partner imaging the unknown by creating foresight capabilities quicker to discover and prevent threats. Our solutions contribute to the improvement of people’s health and safety daily. With us you do work that truly matters.

We are a global provider of X-ray detector solutions and services for medical, security, and industrial applications. Our solutions range from sensor components to optimized detector subsystems with ASICs, electronics, mechanics, software, and algorithms.

Our net sales totalled EUR 101 million in 2025. We have around 700 active customers in over 40 countries. We employ around 500 people in Finland, China, India, France, and the US. Our company’s shares are listed on the Nasdaq First North Growth Market Finland.
We are looking for a skilled professional to join our global team inBeijing. We have an immediate opening for

Process Engineer, Backend

Your role

This position serves as wafer level and die level visual inspection owner. This role requires cross-functional collaboration with project management, R&D, production, and quality to develop for new wafer process validation, mass production issues summary, analysis and feedback and push the problem solving. The role also aims to develop and deploy AOI in visual inspection activities to reduce operator dependency, increase the capacity and achieve labor cost reduction.

Additional task and responsibilities as needed to fulfill department objectives. Key challenges are pushing suppliers to improve and exploring legitimate room to relax internal acceptance standards.

Responsibilities

Own wafer- and die-level visual inspection standards based on impact on downstream processes

Own documentation, including PFMEA, control plan, and work instructions (WIs)

Support new wafer process or new wafer fab validation: define backend inspection/qualification requirements, evaluate impact on downstream processes, and provide feedback and defect risk.

Perform preliminary defect source attribution (Fab incoming vs. internal process vs. handling) and drive feedback to SQE, process teams

Analyze and summarize VI defect report and feedback to SQE and R&D team

Report process yield and quality, and develop action trackers

Apply Six Sigma tools to improve process quality

Perform failure analysis and problem troubleshooting

Lead in defining new equipment specifications, installation, and buyoff

Develop, qualify, and optimize AOI recipes ,drive detection rate up and false-call rate down.

Validate inspection capability and ensure alignment between AOI and manual/microscope inspection

Make disposition decisions (accept/reject/concession/rework) for AOI-detected defects per defined criteria; esc…

Act as process owner for wafer and die VI related materials, equipment, and tooling, responsible for process control and improvement

Initiate process changes, ECO/OCO/Kaizen validation and implementation with required reports and documentation

Support mass production and delivery, train operators, monitor capacity, and collaborate with planners for capacity optimization

Drive defect density reduction, yield improvement, cycle time reduction and cost saving projects

What we expect

Bachelor degree or above, above in microelectronics, materials, physics, optics, mechanical engineering, automation, or other related science/engineering fields.

2+ years of experience in visual inspection (VI) / AOI in a semiconductor packaging house or wafer fab.

Familiar with AOI equipment operation and recipe writing.

Understanding of optical imaging fundamentals

Data analysis skills, familiarity with Minitab or similar tools is preferred.

Able to do trouble shooting and find solution independently.

Data collection and analysis ability, problem detecting ability

Team oriented with strong focus on effective team working and multi-tasking capabilities.

Take initiatives, plan activities and projects with accountability to accomplish tasks to meet timeline.

Ability to work under pressure and independently to meet timeline.

Location

This position is based in Beijing, China with close collaboration with our global teams. You will be reporting to the Senior Manager, Process Engineering.

Our offer

Join us and contribute to a strategically vital area of growth, building innovative solutions that improve industrial efficiency and enhance safety. We provide a competitive salary and benefits package and a dynamic international working environment.

More information

Please, feel free to contact us for more information. We are happy to provide you further information.