Senior Process Engineer Plasma

At the forefront of Europe’s photonics innovation, TNO is building a state-of-the-art pilot line for Indium Phosphide (InP) photonic chips at the High Tech Campus in Eindhoven. As part of the EU-funded PIXEurope program, this pilot line will enable the transition from groundbreaking research to large-scale industrial manufacturing, making advanced photonic technologies faster, more reliable, and widely accessible. To help realize this ambitious step, we are looking for a Senior Process Engineer Plasma.

In this role, you will develop, optimize, and manage plasma processes that are critical for wafer‑scale photonic chip production. With your expertise in deposition and etching of dielectrics and dry etching of III/V semiconductor materials, you will ensure that innovative research is transformed into stable, scalable, and high‑yield manufacturing processes.
What will be your role?  As Senior Process Engineer Plasma, you are responsible for process development and optimization in a high‑tech cleanroom environment. You will focus on deposition and etching of SiO2 and SiN layers, as well as dry etching processes for III/V semiconductors such as InP, GaAs, and GaN, enabling robust 6‑inch wafer manufacturing. By collaborating with R&D, equipment engineers, and QA teams, you ensure stable production, improve yield, and introduce new technologies into the pilot line.

Key responsibilities include:

Developing, qualifying, and improving plasma processes (e.g. PECVD, ICP, RIE) for 6‑inch InP wafers.
Analyzing process data, performing root cause analyses, and applying statistical methods (SPC, FMEA, DoE).
Supporting operators and technicians with process‑related issues, ensuring smooth continuation of wafer manufacturing.
Troubleshooting disruptions and ensuring process stability and quality.
Leading improvement projects and the introduction of new plasma tools and processes.
Collaborating in cross‑functional teams (R&D, Equipment, QA) and reporting progress to management.
Creating and maintaining process documentation, work instructions, and best practices.
Conducting audits and quality checks to ensure compliance and reliability.
Mentoring junior engineers, acting as a sparring partner for cluster leads, and representing process engineering in the absence of the team leader.
What we expect from you  You are a highly skilled process engineer with deep knowledge of plasma etching and industrial wafer manufacturing. You combine analytical strength with hands‑on problem solving and leadership skills. You thrive in a cleanroom environment and are motivated to shape Europe’s future in integrated photonics.
A PhD, MSc, or BSc degree in physics, chemistry, materials science, electrical engineering, or a related field.
8+ years of experience in semiconductor process engineering, preferably in industrial wafer fabs.
Strong expertise in dry etching of III/V semiconductor materials such as InP, GaAs, or GaN.
Proven experience in process development, optimization, troubleshooting, and yield improvement.
Familiarity with statistical tools (SPC, FMEA, DoE) and process characterization methods.
Leadership experience as a cluster lead or acting cluster lead.
Coaching and mentoring skills, with the ability to support junior colleagues and guide larger projects.
A strategic and analytical mindset, with excellent communication and stakeholder management abilities.
What you'll get in return  Challenging and varied work with a real impact. And plenty of opportunities as, at TNO, you are in charge of shaping your career. We offer a gross monthly salary between (based on your knowledge and experience), 8% holiday pay, a 13th month bonus of 8.33% and a flex budget (5.58% + € 180). In addition, you will be given every opportunity to develop yourself.
Benefits   An extremely professional, innovative working environment where colleagues are leading experts in their field.
The opportunity to attend courses, workshops and conferences, and to receive training and coaching based on your needs.
33 days annual leave plus a flexible holiday that can be used on a cultural, religious, or otherwise important day of your choosing (on a full‑time basis).
An…