Thermal Modeling Intern: CFD + AI Memory Systems

Samsung Electronics America; San Jose (CA); On-site; USD 39,000 - 94,000; Full time

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Job summary

Samsung Electronics America’s Power & Thermal Lab in San Jose is offering a thermal engineering internship focused on building and calibrating CFD models of HBM stacks and packages under realistic cooling conditions. As an intern you will work on model-order reduction, CFD validation, and develop homogenization methods with Python/MATLAB code.

You will collaborate with hardware, software, and thermal experts on real projects with tangible results, with mentorship and an emphasis on hands-on

Qualifications

• Pursuing a PhD (preferred) or Master’s in Mechanical Engineering, Materials Science, Electrical Engineering, Applied Physics, or related field.
• Must have at least 1 academic quarter/semester remaining.
• Strong foundation in heat transfer, especially transient conduction in multi-layer solids and thermal contact resistance.
• Hands-on experience with numerical methods (finite-volume, finite-element, or finite-difference) and scientific programming in Python and/or MATLAB.
• Ability to judge simulation results critically and explain discrepancies between models.
• Experience with CFD tools (Simcenter Flotherm, Ansys, COMSOL) preferred.
• Background in electronics packaging or advanced cooling preferred.

Responsibilities

• Build and calibrate CFD models (Simcenter Flotherm) of HBM stacks and packages under realistic cooling conditions.
• Extend compact thermal model to new stack heights and configurations and compare with CFD.
• Develop homogenization methods to replace fine features with effective properties.
• Speed up solvers via model-order reduction, sparse linear algebra, and preconditioning.
• Run transient simulations using real AI workload traces and locate hotspots.
• Explore thermal-aware policies like throttling and power-map scheduling.
• Evaluate advanced cooling options and translate into boundary conditions for design guidance.
• Document methods and present results to engineers and lab leadership.
• Complete other responsibilities as assigned.

Skills

Heat transfer

Numerical methods

Python

MATLAB

Model-order reduction

GPU acceleration

Collaboration

Data analysis

Education

Pursuing PhD or Master’s in Mechanical/Electrical Engineering or related field

Tools

Simcenter Flotherm

Ansys Icepak/Fluent

COMSOL

Job description

Samsung Electronics America’s Power & Thermal Lab in San Jose is offering a thermal engineering internship focused on building and calibrating CFD models of HBM stacks and packages under realistic cooling conditions. As an intern you will work on model-order reduction, CFD validation, and develop homogenization methods with Python/MATLAB code.

You will collaborate with hardware, software, and thermal experts on real projects with tangible results, with mentorship and an emphasis on hands-on