Crossroads FPGA Seminars Online

The Crossraods FPGA Seminar Series aims to offer high-quality 1-hour FPGA research presentations in an online format open to all interested. Seminars will be delivered over Zoom with live Q&A.

Please see the seminar listings page for more details on how to be a part of this. Remember to tell a friend.

If you have suggestions for speakers and topics in the FPGA field, please contact the volunteer organizers.

The Crossroads seminars has its origin in the former Intel/VMware Crossroads 3D-FPGA Academic Research Center.

Upcoming Seminars

Friday, October 30, 2026 | 1pm~2pm ET

Zoom

A Versatile FPGA Tensor Block for MXFP Precisions
Marwan Mekhemer, University of Waterloo and AMD

Friday, December 4, 2026 | 1pm~2pm ET

Zoom

Modeling, Optimizing and Exploring Multi-Die FPGA Routing Architectures
Amir Poolad, University of Toronto

Abstract: 2.5D FPGAs, which integrate multiple dice using interposers and 3D stacking enable larger capacity and better-yielding FPGA systems. However, they raise new questions about how to best extend the programmable interconnect beyond a single die in a way that is transparent to the end user. In this talk we present our work on modeling multi-die 2.5D and 3D FPGAs. We start from detailed circuit models that account for the intricate details of the silicon and the packaging technology, which gives us accurate area and delay values for inter-die connectivity. We then present our FPGA modelling and specification approach, which enhances the VTR open-source FPGA CAD flow to support modelling a wide range of multi-die FPGAs. Finally, we overview the associated CAD challenges with multi-die FPGAs and present our solutions. We use our multi-die enhanced VTR to perform a comprehensive study of many different multi-die FPGA architectures, highlighting various pitfalls of a multi-die FPGA architecture and the many trade-offs that exist. With well-designed multi-die FPGAs and multi-die-aware CAD algorithms, we show that using existing and mature 2.5D and 3D packaging technologies, 3D FPGAs outperform their 2D counterparts in both area and delay, while 2.5D FPGAs can achieve delay equivalent to 2D ones with only 1% to 3% more area, with greatly improved yield.

Bio: Amir Poolad is a second-year MASc student in the ECE department at the University of Toronto under the supervision of Prof. Vaughn Betz. He is a maintainer of the VTR open-source FPGA CAD flow and his research interests are the intersection of FPGA architecture and CAD and how emergent chip manufacturing technologies affect reconfigurable hardware. He received his BSc degree in Computer Engineering from Amir Kabir University of Technology (Tehran Polytechnic) in 2024.

FPGA Technology at Crossroads