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JSSC 2020第9期RF & Wireless28nm/65nm/0.35µm

A Spike-Latency Transceiver With Tunable Pulse Control for Low-Energy Wireless 3

提出一种低能耗无线3D集成收发器,结合脉冲延时编码和可调电流驱动,显著降低能耗。
7.4 pJ/bit, 28nm CMOS
无线3D集成电感耦合低能耗脉冲延时编码可调电流驱动
创新点1:脉冲延时编码方案(方法创新) - 通过时间域数据编码显著减少能量密集型模拟传输脉冲数量,实验验证能量效率达7.4 pJ/bit,较现有方案降低13%以上。该编码技术特别优化了3D堆叠中的跨层通信时序控制。
创新点2:可调电流驱动器(电路创新) - 采用自适应电流驱动架构,根据集成场景动态调整驱动强度,在28nm工艺节点实现高达28%的能耗节约。驱动器集成脉冲宽度调制功能以匹配信道特性。
创新点3:自适应能耗优化系统(系统创新) - 结合编码方案与可调驱动器构建完整传输系统,在0.35µm至28nm多工艺节点验证,实现每比特能耗7.7倍改进,支持3D集成中7.4%的额外时钟控制电路能耗优化。
创新点4:跨工艺节点验证方法(验证创新) - 在0.35µm、65nm和28nm CMOS工艺上进行全流程仿真与测试芯片验证,证明技术方案在先进工艺下的可扩展性,建立精确的数学能耗模型指导设计。
Abstract
Wireless 3-D integration using inductive coupling links (ICLs) has recently gained attention as a low-cost alternative to through-silicon vias (TSVs) for interconnecting stacked silicon tiers. However, 3-D integration using ICLs is often criticized for its inferior energy efficiency compared with conventional approaches. To address this challenge, in this article, we present a low-energy ICL transceiver that combines a spike-latency encod- ing scheme (to reduce the number of energy-expensive anal