TSMC Readies Next-Gen HBM4 Base Dies, Built on 12nm and 5nm Nodes

Of the several major changes coming with HBM4 memory, one of the most immediate is the sheer width of the memory interface. With the fourth-generation memory standard moving from an already wide 1024-bit interface to a ultra-wide 2048-bit interface, HBM4 memory stacks won't be business as usual; chip manufacturers are going to need to adopt more advanced packaging methods than are used today to accommodate the wider memory.