Mandatory Internship Standardized High-Speed PCB Test Structures

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The Robert Bosch GmbH is looking forward to your application!

High-speed automotive interconnects increasingly operate at high frequency, where PCB materials and manufacturing variations strongly influence channel performance. Differences between PCB suppliers - such as laminate properties, copper foil roughness, and stackup implementations - can lead to significant variations in signal integrity metrics such as insertion loss, impedance, and propagation delay.

This internship focuses on the development of standardized high-speed PCB test coupons that enable objective comparison of materials and manufacturing processes across different suppliers. The goal is to design a universal measurement coupon containing multiple test structures that allow the characterization of key electrical parameters including insertion loss, dielectric loss, copper roughness effects, impedance, and glass-weave-induced skew.

The project contributes to establishing a repeatable measurement methodology for high-speed channel characterization, enabling supplier-independent evaluation and supporting robust high-speed PCB design.

• During your internship you will analyze existing PCB test structures to evaluate their suitability for signal integrity and material characterization.
• You will develop standardized PCB test coupons using multiple high-speed characterization structures, this involves implementing specific structures such as multi-line striplines, differential transmission lines, roughness measurement lines, and skew-sensitive trace patterns.
• Using electromagnetic field solvers, you will simulate these structures to make precise predictions about impedance and loss behavior.
• Furthermore you perform VNA (vector network analyzer) measurements on the manufactured coupons to acquire broadband S-parameters.
• From the measurement data, you extract important electrical parameters such as insertion loss, dielectric losses, propagation delay, and impedance.
• Lastly you compare the results from different materials or suppliers, evaluate their reproducibility and contribute to defining a standardized measurement as well as evaluation methodology.

• Education: studies in the field of Electrical Engineering, Physics or comparable
• Experience and Knowledge: interest in high-frequency electronics, signal integrity or electromagnetic simulation; experience with Python, MATLAB or similar analysis tools is beneficial
• Personality and Working Practice: you are able to approach tasks in a structured manner and develop solutions independently
• Work Routine: office attendance required
• Languages: good in German or English

Start: according to prior agreement

Duration: 3 - 6 months (confirmation of mandatory internship required)

We offer you:

• 35 hours/week with flextime
• a permanent contact person who will accompany you during your internship
• a modern working environment, as well as mobile working by arrangement
• the opportunity to become part of our student network students@bosch Stuttgart
• discounts in our company restaurants

Requirement for this internship is the enrollment at university. Please attach your CV, transcript of records, enrollment certificate, examination regulations and if indicated a valid work and residence permit.

Diversity and inclusion are not just trends for us but are firmly anchored in our corporate culture. Therefore, we welcome all applications, regardless of gender, age, disability, religion, ethnic origin or sexual identity.

Need further information about the job?

Torben Wendt (Functional Department)

+49 173 2546327

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