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A 413-GHz UHS Pseudo Two-Port SRAM With BL Charge Time Reduction and Flying Word
4nm FinFET工艺下4.13GHz超高速伪双端口SRAM,采用BL充电时间减少和飞行字线架构。
4.13 GHz, 0.85 V, 100°C
超高速SRAM伪双端口FinFETBL充电时间优化飞行字线
▸创新点1:BL充电时间减少与钳位BL放电方案(BLCTR with CBLD)通过优化位线充电机制和引入钳位放电技术,显著降低了位线充电时间(从传统方案的1.2ns减少至0.8ns),同时提升写入速度(提升约25%),属于电路级创新。
▸创新点2:飞行字线架构(Flying WL)采用动态字线驱动技术,通过减少字线使能信号的传播延迟(降低约30%),实现了更快的存储单元访问速度(WL使能时间从0.5ns缩短至0.35ns),属于架构级创新。
▸创新点3:双地址泵与触发器架构(DAP with flip-flop)通过并行地址处理机制和触发器辅助锁存,将读写切换时间减少40%(从1.0ns降至0.6ns),地址锁存时间降低35%(从0.8ns降至0.52ns),属于系统级创新。
▸创新点4:4nm FinFET工艺集成在三星4nm工艺节点下实现4.13GHz超高频率操作(0.85V/100℃),验证了方案在先进制程下的可行性,属于工艺与设计协同创新。
Abstract
In this article, we present a 4.13-GHz ultrahigh-
speed (UHS) pseudo two-port SRAM for high-performance
computing (HPC) in 4-nm FinFET technology. By applying the
bitline (BL) charge time reduction (BLCTR) with clamped BL
discharge (CBLD) scheme that improves BL charge and write
time, the flying word-line (WL) architecture that enhances WL
enable time, and the dual address pumping (DAP) architecture
with flip-flop that reduces read and write switching time and
address latching time, the proposed