Junior Project Researcher

Postdoctoral Researcher - Micro-fabrication, MEMS & Heterogeneous Integration for Advanced Semiconductor Cooling

Barcelona, Spain (UAB Campus)

Institute of Microelectronics of Barcelona (IMB-CNM, CSIC)

Start date: December 2026 – January 2027

Full-time | Postdoctoral Position

The Institute of Microelectronics of Barcelona (IMB-CNM, CSIC) is the largest Spanish research institute dedicated to Micro and Nanotechnologies, Micro-systems, Semiconductor Technologies and Integrated Systems. Recognized as a María de Maeztu Unit of Excellence, IMB-CNM hosts Spain’s largest clean room facilities and develops cutting-edge technologies for science and industry.

We are seeking a highly motivated Postdoctoral Researcher in Micro-fabrication and Heterogeneous Integration to lead the development of advanced micro-channel cooling technologies for next-generation radiation detectors, semiconductor devices, and high-performance computing (HPC) systems.

This role offers a unique opportunity to bridge micro-fabrication, MEMS technologies, advanced packaging, thermal management, silicon inter-posers and 3D integration within an internationally collaborative research environment.

About the Project

The project focuses on developing innovative technological solutions to integrate micro-channel cooling into semiconductor platforms through:

✅ Silicon interposers with embedded micro-channels

✅ Heterogeneous integration technologies

✅ Redistribution Layers (RDL)

✅ Through-Silicon Vias (TSVs)

✅ Wafer bonding and advanced packaging processes

✅ Monolithic integration with radiation detectors

The resulting technologies will support applications in:

• Particle Physics Instrumentation
• Photon Science and Free Electron Lasers
• High-Performance Computing (HPC) Cooling
• Future Semiconductor and Heterogeneous Integration Systems

Your Role

As the Technical Lead for prototype development, you will coordinate the design, fabrication, integration and validation of advanced micro-fabricated devices.

Key Responsibilities

Technical Leadership

• Lead the development and integration of micro-fabricated prototypes.
• Define, optimize and supervise process flows for micro-channel cooling devices.
• Ensure compatibility across multiple fabrication and integration technologies.
• Drive technical decision-making throughout the project life cycle.

Prototype Development & Coordination

• Manage multiple prototype developments in parallel.
• Plan fabrication campaigns and process iterations.
• Identify, assess and mitigate technical risks.
• Coordinate activities with clean room engineers and technical staff.

International Collaboration

• Act as the technical interface with international research partners.
• Translate system-level requirements into fabrication and design specifications.
• Support experimental validation campaigns and data interpretation.

Knowledge & Research Output

• Document process flows, design decisions and experimental results.
• Contribute to project deliverables, technical reports and scientific publications.
• Participate in international conferences and collaborative research activities.

Required Qualifications

• PhD in Experimental Physics, Microelectronics, Electronic Engineering, Materials Science, MEMS Engineering, Semiconductor Technology or related disciplines
• Leading skills to take technical decisions and responsibilities
• Capacity to collaborate efficiently and openly in a technical and research environment
• Proven experience in clean room-based micro-fabrication
• Experience in MEMS or in advanced packaging / heterogeneous integration
• Previous experience in applied microfluidics or thermal management will be highly valued.
• Skills: Teamwork, Critical thinking and problem solving, Collaborative knowledge generation, Managing deadlines and competing responsibilities, Flexibility in scientific approaches and collaboration
• Languages: Professional working proficiency in English, Basic knowledge of Spanish is desirable

What We Offer

✨ Opportunity to work at one of Europe's leading microelectronics research centres

✨ Access to state-of-the-art clean room and nano-fabrication facilities

✨ Collaboration with internationally recognized researchers and engineers

✨ Participation in high-impact scientific publications and conferences

✨ Exposure to cutting-edge technologies in semiconductor man