Thermal Modeling Intern for AI Memory & HBM

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

Benefits offered by this job

Relocation Support

Housing Stipend

Charitable giving match

Emotional wellness resources

Onsite café and gym facilities

Flexible environment

Job summary

Samsung Semiconductor’s Thermal Modeling & Simulation Lab in San Jose invites an Intern to develop and calibrate CFD models for AI memory stacks, focusing on HBM thermal behavior. You will own segments end‑to‑end, from physics and CFD reference to validated fast models used by architecture, power, and package teams.

As part of a small, fast‑moving team, you’ll gain mentorship, work on real projects with tangible results, and contribute to future HBM products using collaboration across hardware,

Qualifications

• Pursuing a PhD or MS in a relevant field with remaining academic term.
• Strong foundation in transient heat transfer in multi‑layer solids.
• Hands-on numerical methods and scientific programming in Python and/or MATLAB.

Responsibilities

• Build and calibrate CFD models (Simcenter Flotherm) of HBM stacks and packages under realistic cooling.
• Extend compact thermal model to new stack heights and configurations; compare to CFD.
• Develop homogenization methods to replace fine features with effective properties.
• Speed up solvers via model-order reduction, sparse linear algebra, or GPU acceleration.
• Run transient simulations using real AI workload traces; identify hotspots and thermal policies.
• Evaluate cooling options and translate into boundary conditions for HBM designs.
• Couple thermal model with power simulation engine for time-evolving maps.
• Document methods and present results to engineers and leadership.
• Complete other responsibilities as assigned.

Skills

Heat transfer

Python

MATLAB

CFD modeling

GPU acceleration

Scientific computing

Data analysis

Collaboration

Critical thinking

Adaptive learning

Education

PhD preferred

Master's degree in Mechanical/Materials/Electrical Engineering, Applied Physics

Tools

Simcenter Flotherm

Ansys Icepak/Fluent

COMSOL

Job description

Samsung Semiconductor’s Thermal Modeling & Simulation Lab in San Jose invites an Intern to develop and calibrate CFD models for AI memory stacks, focusing on HBM thermal behavior. You will own segments end‑to‑end, from physics and CFD reference to validated fast models used by architecture, power, and package teams.

As part of a small, fast‑moving team, you’ll gain mentorship, work on real projects with tangible results, and contribute to future HBM products using collaboration across hardware,