Micron is on the cusp of revolutionizing the memory market with its next-gen High Bandwidth Memory (HBM4) and the even more advanced HBM4E processes, targeting mass production by 2026. This strategic leap positions Micron to compete head-to-head with industry giants like SK Hynix and Samsung in mastering HBM4 technology.
At a recent investors’ conference, Micron highlighted that its HBM4 development is proceeding smoothly and work on the HBM4E process is already underway. HBM4 is set to redefine the HBM market, promising extraordinary performance gains and energy efficiency—vital elements for scaling artificial intelligence capabilities.
Micron plans to leverage its well-established 1β process technology, aiming to uphold its market timing and energy efficiency leadership. The firm anticipates a performance boost of more than 50% compared to HBM3E. The projection is that HBM4 will be available in significant volumes by 2026. Furthermore, Micron is collaborating with multiple clients on HBM4E, which will introduce customizable logic base die options using TSMC’s cutting-edge logic foundry manufacturing process. This customization is expected to enhance Micron’s financial viability significantly.
A fascinating aspect of HBM4 technology is the integration of memory and logic semiconductors into a single package, eliminating the need for traditional packaging technology. This closer proximity should lead to significant performance efficiencies. Micron has selected TSMC as its “logic semiconductor” provider, a move reflecting strategies employed by competitors like SK Hynix.
As an industry pioneer, Micron joins SK Hynix in openly advancing the HBM4E process. While specific details about Micron’s HBM4 lineup remain undisclosed, the company did mention that HBM4 is expected to support stacking up to 16 DRAM dies, each with 32 GB capacity, and a 2048-bit wide interface, elevating its capabilities far beyond previous generations.
HBM4 is on track to power significant advancements in technology, appearing in NVIDIA’s Rubin AI architecture and AMD’s Instinct MI400 lineup. With demand for HBM reaching unprecedented levels, Micron’s production lines are anticipated to be fully booked by 2025, heralding a promising future for the company and the memory industry at large.
