About this opportunity:
The rapid growth of power-dense electronics has driven the demand for advanced cooling technologies capable of handling extremely high heat fluxes. Vapor chambers have emerged as a promising solution due to their ability to spread heat efficiently through phase-change mechanisms and capillary-driven fluid circulation. While previous studies have largely focused on optimizing wick structures and liquid-vapor transport, the overall performance and reliability of a vapor chamber are also strongly influenced by its structural design. Geometrical design choices can significantly affect thermal performance, fluid transport characteristics, mechanical robustness, and manufacturing feasibility.
This thesis project aims to develop and extend a multiphysics optimization framework for high heat flux vapor chambers by combining thermo-hydraulic and structural considerations within a unified design methodology. The study will investigate how design parameters influence heat transfer, fluid transport, and mechanical integrity, with the goal of identifying vapor chamber configurations that simultaneously maximize thermal performance, structural reliability, and manufacturability.
What you will do:
- Conduct a litterature review on vapor chamber technologies, multiphase transport, structural integrity, and optimization methods.
- Investigate the relationship between heat transfer, fluid transport, and mechanical behavior under realistic operating conditions.
- Develop or extend computational models for thermal, fluid-dynamic, and structural performance.
- Perform sensitivity and parametric analyses of design parameters, including thermal efficiency, capillary limitations, pressure losses, and structural integrity.
- Implement a multiphysics optimization framework combining thermo-hydraulic performance with mechanical robustness.
- Evaluate design trade-offs and recommend optimized vapor chamber configurations.
The skills you bring:
- You are pursuing a Master's degree in Mechanical Engineering, Engineering Physics, Energy Technology, Applied Physics, or a related field.
- Previous experience with Computational Fluid Dynamics (CFD), Finite Element Analysis (FEA), and numerical modeling is required.
- You have a solid understanding of heat transfer, fluid mechanics, and phase-change phenomena.
- Knowledge of structural mechanics, optimization methods, design engineering, programming, or scientific computing is an advantage.
- You are analytical, systematic, and able to work independently on a complex modeling problem.
- You can communicate technical findings clearly and draw practical conclusions from simulation results.
Why join Ericsson?At Ericsson, you'll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what's possible. To build solutions never seen before to some of the world's toughest problems. You'll be challenged, but you won't be alone. You'll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply? Click Here to find all you need to know about what our typical hiring process looks like.Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: Sweden (SE) || Stockholm
Req ID: 787559
Skills Required
- Pursuing a Master's degree in Mechanical Engineering, Engineering Physics, Energy Technology, Applied Physics, or a related field
- Previous experience with Computational Fluid Dynamics (CFD)
- Previous experience with Finite Element Analysis (FEA)
- Previous experience with numerical modeling
- Understanding of heat transfer, fluid mechanics, and phase-change phenomena
- Analytical, systematic, and independent approach to complex modeling problems
- Ability to communicate technical findings clearly and draw practical conclusions from simulation results
- Knowledge of structural mechanics, optimization methods, design engineering, programming, or scientific computing
What the Team is Saying
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Ericsson Compensation & Benefits Highlights
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Healthcare Strength — U.S. job postings describe multiple medical plan options (including PPO and HSA‑eligible HDHP) plus dental and vision, aligning with a comprehensive medical suite. Corporate materials also emphasize wellbeing resources and EAP support.
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Retirement Support — Company communications and U.S. materials reference market‑competitive retirement benefits, including a 401(k) with automatic employer contributions and additional matching. Investor and benefits materials signal a structured approach to total rewards that includes long‑term savings programs.
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Parental & Family Support — U.S. and EWS guides and postings highlight paid maternity and parental/adoption leave at full pay, alongside structured short‑term disability at full pay for defined weeks by tenure. These programs are positioned as part of a family‑friendly, work‑life‑balance offering.
Ericsson Insights
What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day. We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale. Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient. Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical. Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term. As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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