中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

导航

电子与封装 ›› 2022, Vol. 22 ›› Issue (1): 010303 . doi: 10.16257/j.cnki.1681-1070.2022.0110

• 电路与系统 • 上一篇    下一篇

高可靠性的读写分离14T存储单元设计*

张景波1;朱亚男2;彭春雨2;赵强2   

  1. 1. 工业和信息化部产业发展促进中心,北京 100084;2. 安徽大学集成电路学院,合肥 230601
  • 收稿日期:2021-06-17 出版日期:2022-01-25 发布日期:2021-08-26
  • 作者简介:张景波(1975—),男,山东省平度市,硕士,高级工程师,目前从事电子信息技术及其产业发展研究。

High Reliability Read-Write Separation14T Storage Cell Design

ZHANG Jingbo1, ZHU Yanan2, PENG Chunyu2, ZHAO Qiang2   

  1. 1. Industry Development andPromotion Center, Ministry of Industry and Information Technology of China,Beijing 100804, China; 2. School of Integrated Circuits,Anhui University, Hefei 230601, China
  • Received:2021-06-17 Online:2022-01-25 Published:2021-08-26

摘要: 为了提高航空航天设备的可靠性和运行速度,提出了一种新型读写分离的14T SRAM单元。基于65 nm体硅CMOS工艺,对读写分离14T存储单元的性能进行仿真,并通过在关键节点注入相应的电流源模拟高能粒子轰击,分析了该单元抗SEU的能力。与传统6T相比,该单元写速度、读静态噪声容限和位线写裕度分别提升了约5.1%、20.7%和36.1%。写速度优于其他存储单元,读噪声容限优于6T单元和DICE单元,在具有较好的抗SEU能力的同时,提高了读写速度和读静态噪声容限。

关键词: 静态随机存储器, 高可靠性, 读写分离, 单粒子效应

Abstract: In order to improve the reliability and operating speed of aerospace equipment, a new type of 14T SRAM cell with read-write separation is proposed. Based on the 65 nm bulk silicon CMOS process, the performance of the proposed 14T memory cell is simulated; and, by injecting a corresponding current source into the key nodes to simulate high-energy particle struck, the anti-SEU capability of it is analyzed. Compared to the conventional 6T cell, the write speed, the read static noise margin and the bit line write margin are improved about 5.1%, 20.7% and 36.1%, respectively. The write speed is better than other memory cells, and the read noise tolerance is better than 6T cells and DICE cells. While having better anti-SEU capability, it also improves read and write speed and read static noise tolerance.

Key words: staticrandomaccessmemory, highreliability, read-writeseparation, singleeventeffect

中图分类号: