Samsung begins mass production and customer shipments of HBM4

Core Insights - Samsung Electronics has commenced mass production of HBM4 high-bandwidth memory, shipping commercial products to customers and entering the HBM4 market early [1] Performance and Specifications - HBM4 offers a processing speed of 11.7 gigabits per second (Gbps), surpassing the industry standard of 8Gbps, and shows a 1.22 times increase over HBM3E's maximum pin speed of 9.6Gbps, with potential to reach up to 13Gbps [2] - The total memory bandwidth per stack of HBM4 is increased by 2.7 times compared to HBM3E, achieving up to 3.3 terabytes per second [2] Capacity and Design - Samsung will provide HBM4 in capacities ranging from 24GB to 36GB using 12-layer stacking, with plans to offer up to 48GB through 16-layer stacking [3] - To manage power consumption and thermal issues due to increased data I/Os from 1,024 to 2,048 pins, Samsung has incorporated low-power design measures into the core die [3] Efficiency and Thermal Management - A 40% improvement in power efficiency is reported through low-voltage through-silicon via technology and power distribution network optimization [4] - Compared to HBM3E, there is a 10% enhancement in thermal resistance and a 30% increase in heat dissipation [4] Production and Supply Chain - Samsung emphasizes its manufacturing resources, including DRAM capacity and dedicated infrastructure, as key to supply chain resilience amid rising demand for HBM4 [5] - The company highlights design technology co-optimization between its foundry and memory businesses as a factor supporting quality and yields, along with in-house advanced packaging capabilities to shorten production cycles and reduce lead times [5] Strategic Partnerships - Samsung plans to expand technical partnerships with key players following discussions with global GPU manufacturers and hyperscalers focused on next-generation application-specific integrated circuit (ASIC) development [6]