Interconnect Innovations In High Bandwidth Memory: Part 2

Interconnect technology in high bandwidth memory (HBM) is evolving with two main approaches: microbump technology and hybrid bonding. Both are adapting to meet the demands of next-generation HBM, aiming for increased I/O density to support higher bandwidth and improved performance. Microbumps are being pushed to smaller dimensions, with some memory designers achieving bump sizes below 10µm in high volume manufacturing. Hybrid bonding, on the other hand, allows for finer interconnect pitches and offers benefits like higher bandwidth and improved performance. Manufacturers are exploring process control solutions to address challenges in both microbumps and hybrid bonding technologies.