Semiconductor Shift Maintenance Engineer or Technician - Diffusion 80 – 100% (f/m/d)

Hitachi Energy; Lenzburg; On-site; CHF 100,000 - 130,000; Full time

Job summary

Hitachi Energy is seeking a Diffusion Maintenance Engineer/Technician to ensure uptime and reliability of semiconductor production tools. You will perform corrective, preventive and predictive maintenance, drive safety and line efficiency improvements, and collaborate across maintenance, process and production teams.

The role requires hands-on tooling experience, knowledge of diffusion equipment, metrology tools, and a proactive mindset for continuous improvement.

Qualifications

• Hands-on maintenance of semiconductor production tools.
• Strong knowledge of electronics, mechanics and pneumatics.
• Experience with diffusion systems (ASM, Centrotherm ovens).
• Familiarity with metrology tools (Surfscan, Semilab WT-2000).
• Additional training or expertise in vacuum systems or related technologies.
• Completed technical vocational training in Automation/Electronics.
• Willingness to work in shifts.
• Proficiency in English; German is a plus.

Responsibilities

• Ensure maximum uptime of semiconductor production tools through proactive maintenance and troubleshooting.
• Drive continuous improvement in equipment performance with 6S safety and efficiency practices.
• Collaborate with maintenance, process and production teams to meet performance goals.
• Participate in tool upgrades and modernization projects to enhance capability and reliability.
• Maintain accurate documentation of maintenance activities, status, and performance.
• Support root-cause analysis and problem resolution within the team.
• Train and mentor colleagues in diffusion, safety, and best practices.
• Promote a strong safety culture with compliance to regulations and procedures.

Skills

Maintenance experience

Team player

Shift work

English proficiency

German language (plus)

Education

Technical vocational training in Automation/Electronics

Tools

ASM diffusion ovens

Centrotherm ovens

Surfscan

Semilab WT-2000

Vacuum systems

Job description

Are you passionate about driving innovation and ensuring maximum uptime of semiconductor production tools? As a Diffusion Maintenance Engineer/Technician, you play a vital role in ensuring the availability, reliability, and continuous improvement of our semiconductor production tool park. Your focus is on the corrective, preventive and predictive maintenance of diffusion equipment, working cross-functionally to drive safety, productivity, and general tool and workflow optimizations across the production line.

How You’ll Make An Impact

• Ensure maximum uptime of semiconductor production tools through proactive maintenance and troubleshooting of diffusion equipment
• Drive continuous improvement in equipment performance, applying workplace safety and efficiency practices aligned with 6S methodology
• Collaborate closely with other maintenance, process, and production teams to achieve performance goals and optimize line efficiency
• Participate in tool upgrades and modernization projects to enhance tool capability and reliability
• Maintain accurate and detailed documentation of maintenance activities, equipment status, and system performance
• Support root-cause analysis and problem resolution for technical issues within the team
• Train and mentor colleagues in the areas of diffusion, safety, and best maintenance practices
• Promote a strong safety culture by ensuring compliance with all relevant regulations, procedures and documentations

Your background

• Hands-on experience in maintenance of semiconductor production tools
• Solid understanding of electronics, mechanics and pneumatics
• Experience with diffusion systems (e.g. ASM, centrotherm ovens)
• Familiarity with metrology tools for process control (e.g., Surfscan, Semilab WT-2000)
• Additional training or expertise in vacuum systems or related technologies
• Completed technical vocational training (e.g., Automation Technician, Electronics Technician, or similar field)
• Willingness to work in shifts is a must
• Strong team player with problem-solving mentality, organizational skills, and proficiency in English (German is a plus)

More About Us

Hitachi Energy offers you interesting tasks in a highly motivated team and an open communication style. Through an individual and practice-oriented induction plan, we will support you to quickly gain professional confidence to be able to work independently with high level of personal responsibility.

Publication date : 2026-07-23