SI/PI Intern
About Etched
Etched is building hardware for frontier intelligence. We co-design chips, racks, software, and manufacturing to deliver best-in-class throughput and latency across both prefill and decode workloads. Our first products are heavily focused on inference. Backed by hundreds of millions from top-tier investors and staffed by leading engineers, Etched is redefining the infrastructure layer for the fastest growing industry in history.
Job Summary
As a Signal Integrity / Power Integrity Intern, you will help design and validate the next generation of high-performance AI systems. You will work closely with package, PCB, ASIC, and system engineers to analyze high-speed interfaces, extract channel models, and improve signal quality across our accelerator platforms.
This role provides hands-on experience with industry-leading tools and real-world challenges involving PCIe, Ethernet, high-speed SerDes channels, advanced packaging, and multi-board systems.
Key Responsibilities
- Signal Integrity Analysis
- Perform channel analysis for high-speed interfaces including PCIe, Ethernet, and other SerDes links. Extract and validate S-parameter models from package and PCB layouts. Analyze insertion loss, return loss, impedance discontinuities, and crosstalk. Generate channel compliance reports and support design reviews. Modeling & Simulation
- Build and validate 3D electromagnetic models using Ansys HFSS. Develop board and package channel models from ECAD design databases. Correlate simulation results with measurements and lab data. Support mixed package-board channel simulations and optimization.
- Partner with PCB layout, package, hardware, and ASIC teams to improve signal integrity. Identify root causes of channel degradation and propose design improvements. Contribute to SI design guidelines and best practices.
Representative Projects
- Extracting S-parameter models from package and board designs for PCIe channels.
- Building HFSS mode...