AMD’s Technology Decks: Interposer
The Interposer is what makes HBM possible. Basically, it allows the GPU and memory to communicate with each other. What makes this Interposer special is that it was specifically designed by AMD with high-volume bandwidth in mind to accommodate the stacked DRAM. Honestly, it’s the HBM that deserves most of the attention, but if you’re interested in how the Interposer is made, check out the slides below.