VHS-C: A Simulation-Backed Research Roadmap for Volumetric Compute-Memory Architectures

Silicon-based CMOS scaling faces increasingly severe limits from heat density, inter-connect delay, and the memory wall. This paper proposes VHS-C (Volumetric High-SpeedComputing) as a research roadmap for a post-silicon, volumetric compute-memory ar-chitecture. The proposed direction combines logic-memory proximity, heterogeneoustwo-dimensional semiconductor logic candidates, graphene/carbon support layers, ver-tical interconnects, thermal/shield/support layers, persistent-memory candidates, an