3D Memory Network Nodes for High-Density Interconnects

The patent transitions from two-dimensional planar memory layouts to three-dimensional stacked architectures, where memory banks are arranged vertically across multiple layers. This dimensional change allows increased memory capacity without proportionally increasing interconnect complexity, as the vertical stacking enables more efficient use of the substrate area and reduces the number of interconnect layers required compared to horizontal expansion.

The memory system is divided into multiple independent memory banks organized in a three-dimensional stack, where each bank can be manufactured and tested separately. This segmentation allows for better yield management, as defects in one bank do not necessarily affect the entire memory array, and enables modular manufacturing approaches that can improve overall production yield while achieving high total capacity.

The patent implements a hierarchical interconnect architecture where local interconnects serve nearby memory banks within the same stack layer, while global interconnects handle communication between different layers and external processors. This local quality approach ensures that frequently accessed data within the same bank experiences minimal delay, while the overall system maintains high capacity through the expanded three-dimensional structure.

The memory system employs a nested hierarchical structure where memory cells are organized into banks, banks are stacked into layers, and layers are integrated into a three-dimensional array. This nesting approach achieves high packaging density by efficiently utilizing vertical space, while the regular repeating patterns at each hierarchical level provide modularity that helps manage system complexity through standardized design units.