Black Semiconductor GmbH

Defect Inspection Engineer (f/m/d)

Aachen, Germany full-time Mid Salary not listed
full-time Mid level Technology & IT Curated
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About the role

Your Role
As a Defect Inspection Engineer/Expert, you will be responsible for ensuring the defect-free quality of semiconductor wafers using Automated Optical Inspection (AOI) systems and unpatterned wafer inspection.
You will detect defects such as particles, scratches, haze, and surface roughness that could impact the yield of our integrated graphene photonics process flow. Working in a cleanroom environment, you will collaborate with process, equipment and integration teams to set up, qualify and optimize inspection recipes, troubleshoot issues, and continuously improve defect detection and classification.
What You’ll Do
Perform AOI and unpatterned wafer inspection on materials such as bare silicon, epitaxial layers and polished wafers

Set up, qualify and optimize inspection recipes

Fine-tune inspection tool and recipe parameters to improve defect-detection sensitivity, inspection quality, repeatability and overall performance

Analyze defect data to identify trends, root causes and potential process excursions

Interpret defect data and translate findings into actionable insights for process teams

Generate defect maps, Pareto charts and reports to communicate findings

Participate in Design of Experiments (DOE) to optimize inspection parameters

Troubleshoot inspection-related issues and support continuous improvement in defect detection and classification

Collaborate with process, equipment and integration teams

What You Bring
A bachelor’s degree or above in electrical engineering, materials science, physics or a related field

5+ years of experience in semiconductor inspection, with a focus on AOI and unpatterned wafer inspection

Hands-on experience with unpatterned wafer inspection systems, such as SPx, and AOI tools such as Eagle or Dragonfly

Understanding of semiconductor process flows, including polishing, epitaxy and cleaning

Familiarity with defect classification, SEM review and Statistical Process Control (SPC)

Proficiency in AOI and defect-review software, such as KLA Klarity and Camtek Inspecta

Ability to optimize inspection tools and recipe parameters for sensitivity, inspection quality and repeatability

Ability to interpret defect data and identify relevant trends and improvement opportunities

Proficiency in JMP for statistical analysis, data visualization and DOE

Familiarity with MATLAB or Python is an advantage

Excellent communication and teamwork skills, with the ability to collaborate across functions

What We Offer
The opportunity to work on defect inspection for an integrated graphene photonics process flow

A cleanroom-based role with close collaboration across process, equipment and integration teams

Our work culture
People Over Processes. At Black Semiconductor, flexibility is key-we ensure work adapts to life, not the other way around. We champion work-life harmony, where careers are meaningful and enriching. Our processes are human-centric, allowing you to focus on what matters
Let’s grow together. Your potential is our priority. We provide the autonomy to make a lasting impact and nurture your growth through a culture of continuous learning. We invest in your journey for professional and personal development
Your Health and Future Matter. Your well-being is paramount. We offer a comprehensive benefits package with outstanding insurance, pension and virtual stock options for your mental, physical, and financial health. Your peace of mind is our priority - in the present and future
We Live Openness. Collaboration and inclusivity are the cornerstones of our culture. We practice openness, fostering trust and respect. Individuality is our collective strength, fueling innovation and driving us forward
We connect chips – and people. We encourage qualified individuals from any background to apply. We foster an inclusive and supportive work environment that values collaboration, innovation, and growth. Join our team and be part of an organization dedicated to making a difference in the industry
 
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Interview prep

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Mid
Technology & IT API integration Human Resources Python Defect Inspection Mid level

Likely questions

  1. Tell us about work you have done that is close to the Defect Inspection Engineer (f/m/d) role.
  2. How would you approach your first 30 days at Black Semiconductor GmbH?
  3. Which of API integration, Human Resources and Python have you used recently, and what did it help you achieve?
  4. Describe a time you solved a problem without waiting to be told exactly what to do.
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, Human Resources and Python.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Defect Inspection Engineer (f/m/d) role because I can bring practical experience in API integration, Human Resources and Python, learn the team quickly, and contribute to the outcomes Black Semiconductor GmbH needs from this hire.

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