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JSSC 2010第1期MemorySRAM

A Chip-Stacked Memory for On-Chip SRAM-Rich SoCs and Processors Hideaki Saito Ma

通过三维封装技术实现的动态可重构内存芯片,优化SoC内存使用效率。
10μm-pitch inter-chip electrodes
芯片堆叠动态重构内存芯片SoC3D IC
创新点1:动态可重构内存芯片(系统创新) - 通过三维封装技术将SoC芯片的片上内存动态迁移至内存芯片,显著提高内存资源利用率,特别适用于多IP核心的SoC设计,减少内存闲置时间。
创新点2:二维网状网络互连(电路创新) - 采用专为内存优化的二维网状网络互连技术,相比传统互连方案,面积开销减少63%,延迟降低43%,显著提升内存访问效率。
创新点3:低功耗快速芯片间传输(方法创新) - 使用10微米间距的芯片间电极直接连接信号线,实现高速低能耗的芯片间数据传输,优化了三维堆叠芯片的通信性能。
创新点4:内存专用网络互连(电路创新) - 针对内存芯片设计的专用网络互连,进一步降低了传统互连方案带来的面积和延迟开销,提升了整体系统的能效比。
Abstract
, Akira Ohuchi, Noriyuki Iguchi, Toshitsugu Sakamoto, Koichi Y amaguchi, and Masayuki Mizuno , Member , IEEE Abstract—A dynamic-reconfigurable memory chip is fabri- cated, by which on-chip memories of an SoC chip can be moved to the memory chip to increase the efficiency of memory usage, and stacked on a logic chip by using three dimensional packaging technology. In the memory chip, many RAM-macros are arrayed and they are connected through two dimensional mesh network interconnects. By using memo