Field Applications Engineer (FAE) – RF semiconductor equipment

Comet Yxlon GmbH

  • Aachen
  • Post Date: 23. March 2025
Job Description

For 75 years, we have been following our curiosity. It drives us and has made Comet a leading Swiss technology company worldwide. Curiosity and the spirit of research have allowed us to become and remain innovative. For a better and sustainable world.

We develop and produce innovative high-tech components and systems based on X-ray and radio-frequency technology. Our developments make an important contribution to safer, more efficient and more sustainable production, mobility and communication

In the Plasma Control Technologies (PCT) division, we manufacture specialized components that are required for the precise control of plasma processes and are used in the production of memory chips or touch screens for sensors, smartphones or tablets. At the German PCT site, the expertise is mainly in the field of RF generators.

Job Summary: As a Field Applications Engineer (FAE), you will provide technical expertise to support the integration, optimization, and troubleshooting of RF Matching Networks, RF Generators, and related RF subsystems in semiconductor manufacturing. You will work closely with customers, R&D, and field teams to ensure seamless adoption of our products in plasma processing applications.


  • Collaborate with internal and external customers to integrate RF subsystems to semiconductor manufacturing tools
  • Perform RF system characterization, impedance matching and power delivery optimization
  • Support pre-sales and post-sales activities, including technical presentations and training
  • Conduct lab testing, data analysis and troubleshooting to resolve customer issues
  • Work closely with R&D to provide customer feedback for product enhancements
  • Develop technical documentation, applications notes and training materials
  • Provide on-site and remote customer support as needed

  • Bachelor's or Master's degree in Electrical Engineering, RF Engineering or related field
  • 2 years+ of experience in RF applications, semiconductor equipement or related industry
  • Hands-on-experience with RF Matching Networks, RF Generators and impedance matching is a plus
  • Understanding of Smith charts, S-parameters and RF circuit design is a plus
  • Willingness to travel (domestic & international) as required
  • Fluent English, both written and spoken. German is a plus
  • High customer orientation, strong communication skills, team player mentality
  • Structured and independant working style with a hands-on approach
  • Strong organizational skills, problem-solving ability and analytical thinking


  • A versatile and lively task in a successful Swiss company that continues to be on a growth course
  • An unlimited employment contract in full-time with flextime and the possibility to work remotely
  • A pleasant working environment with modern infrastructure and flat hierarchies
  • An open, supportive, and committed team
  • A dynamic, international environment
  • Job bike, e-charging stations on the building, company pension scheme, free drinks (hot/cold), health care via company doctor, success participation, 30 days of vacation
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