Challenges In Stacking HBM


AI data centers are pushing for higher density in high-bandwidth memory. Today, the maximum number of layers that can be stacked is 8, but that increases to as many as 24 layers by 2030. The big challenge will be in the interconnects, and making sure the microbumps align. At 16 layers, the bump pitch will be less than 10 microns, and the dies will be thinner. Damon Tsai, head of product marketi... » read more

UCIe-3D: SiP Architectures With Advanced 3D Packaging With Shrinking Bump Pitches (Intel)


A technical paper titled “High-performance, power-efficient three-dimensional system-in-package designs with universal chiplet interconnect express” was published by researchers at Intel. Abstract: "Universal chiplet interconnect express (UCIe) is an open industry standard interconnect for a chiplet ecosystem in which chiplets from multiple suppliers can be packaged together. The UCIe 1.0... » read more

Why Use A Package?


Subramanian Iyer, distinguished chancellor's professor in UCLA's Electrical Engineering Department—and a former fellow and director of the systems scaling technology department at IBM—sat down with Semiconductor Engineering to talk about the future of chip scaling. What follows are excerpts of that conversation. SE: Advanced packaging is being viewed as a way to extend scaling in the fut... » read more