Graphene Photonics Device Reliability Testing Engineer (f/m/d)

Blacksemiconductor; Aachen; On-site; EUR 90,000 - 120,000; Full time

Job summary

Black Semiconductor in Aachen seeks a Device Reliability Testing Engineer to drive reliability qualification and long-term stability for graphene photonics products. You will establish robust test methodologies with Design Enablement, Process Integration and Product Quality, transitioning from prototype to production-ready, high-volume deployment.

You will design wafer-level tests and investigate graphene-related failure mechanisms, ensuring industry-standard compliance and producing

Qualifications

• PhD or MSc in Electrical Engineering, Physics, Materials Science, or Photonics Engineering.
• Hands-on experience in semiconductor device physics, optoelectronics, or reliability testing.
• Photonic device characterization and reliability testing experience.
• RF testing (>40 GHz) and VNA-based S-parameter measurements.
• VNA, high-speed oscilloscopes, LCA, OSA, and probe stations familiarity.

Responsibilities

• Design and execute wafer-level reliability tests for graphene photonic devices (DC bias, RF endurance, thermal cycling).
• Investigate physical mechanisms behind graphene-related failure modes.
• Characterize metrics: extinction ratio, insertion loss, bandwidth, energy efficiency, dark current stability, lifetime.
• Lead root-cause investigations (FMEA/8D) and feedback to Design/Process teams.
• Ensure compliance with JEDEC/OIF/IEC/IEEE and generate qualification documentation.

Skills

Device physics

Photonic reliability testing

RF testing

VNA measurements

Education

PhD or MSc in EE/Physics/Materials/Photonics

Tools

VNA

Oscilloscopes 50+ GHz

LCA

OSA

Probe stations

Job description

About us

We see the semiconductor industry as a realm of possibility. We see opportunity. We see the profound impact that our graphene solutions will have in transforming the industry. We invite you to join us in driving change with our fundamentally human-centered approach, uniting bright minds around a shared vision. The vision is: Prove to everybody that you can make a fundamental change. Prove with your knowledge and skills how things can be done differently. Together, we can change the paradigm of how the world connects

About our technology

The semiconductor industry's growing demand for more powerful chips with higher bandwidth and lower power finds its solution in our technology. We connect chips to high-throughput, low-delay computing networks. The key lies in harnessing the physical properties of graphene to combine electronic computing with photonic communication, allowing countless chips to interact almost as if they were one. Our graphene photonic innovation increases computing power and efficiency to a new order of magnitude In short, we connect chips to create powerful and energy-efficient networks, overcoming connectivity limitations in the semiconductor industry. We deliver the graphene solution

The Role

We are seeking a Device Reliability Testing Engineer to drive reliability qualification, failure analysis, and accelerated life testing for our integrated graphene photonics products. In close collaboration with Design Enablement, Process Integration, and Product Quality, you will establish robust test methodologies to validate device reliability, and long-term stability in accordance with industry standards.

You will play a key role in transitioning our technology from prototype to production- qualified products, ensuring that graphene photonics meet the performance and robustness requirements of high-volume deployment.

To join our team, you should be excited to:

• Design and execute wafer-level device reliability test plans for graphene- based photonic devices (DC bias, RF endurance, thermal cycling, long-term stability)
• Identify and investigate the physical mechanisms of graphene-related failure modes.
• Characterize and monitor key performance metrics, including extinction ratio, insertion loss, bandwidth retention, energy efficiency, dark current stability, responsivity degradation over device lifetime
• Drive structured root cause investigations using FMEA/8D methodologies and feed findings back to Design and Process teams
• Work together with product and quality teams to reach compliance with industry standards (JEDEC, OIF, IEC, IEEE) and generate qualification and reliability documentation

Your Qualifications

• Ph.D. or Master's degree in Electrical Engineering, Physics, Materials Science, or Photonics Engineering
• Hands-on experience in semiconductor device physics, optoelectronics, or reliability engineering
• Hands-on experience in photonic device characterization and reliability testing
• Experience with high-speed RF testing (>40 GHz) and VNA-based S- parameter measurements.
• Experience with advanced test equipment such as VNA, real-time and sampling oscilloscopes (50+ GHz), lightwave component analyzers (LCA), optical spectrum analyzers, and probe stations.

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

Can you picture yourself in this Role and our Company? Let's connect!

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