A low-voltage sense amplifier for high-performance embedded flash memory

被引:5
作者
Liu Jiang [1 ]
Wang Xueqiang [2 ]
Wang Qin [1 ]
Wu Dong [2 ]
Zhang Zhigang [2 ]
Pan Liyang [2 ]
Liu Ming [1 ]
机构
[1] Chinese Acad Sci, Inst Microelect, Beijing 100029, Peoples R China
[2] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China
基金
国家高技术研究发展计划(863计划);
关键词
sense amplifier; current mode; embedded flash memory; low voltage;
D O I
10.1088/1674-4926/31/10/105001
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
This paper presents a sense amplifier scheme for low-voltage embedded flash (eFlash) memory applications. The topology of the sense amplifier is based on current mode comparison. Moreover, an offset-voltage elimination technique is employed to improve the sensing performance under a small memory cell current. The proposed sense amplifier is designed based on a GSMC 130 nm eFlash process, and the sense time is 0.43 ns at 1.5 V, corresponding to a 46% improvement over the conventional technologies.
引用
收藏
页数:5
相关论文
共 8 条
[1]   A 1.2 V sense amplifier for high-performance embeddable NOR flash memories [J].
Baderna, D ;
Cabrini, A ;
De Sandre, G ;
De Santis, F ;
Pasotti, M ;
Rossini, A ;
Torelli, G .
2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS, 2005, :1266-1269
[2]   A high-performance very low-voltage current sense amplifier for nonvolatile memories [J].
Conte, A ;
Lo Giudice, G ;
Palumbo, G ;
Signorello, A .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2005, 40 (02) :507-514
[3]  
Deml C., 2007, IEEE INT SOL STAT CI, P478
[4]  
Kajiyama S, 2008, IEEE ASIAN SOLID STA, P257, DOI 10.1109/ASSCC.2008.4708777
[5]   The Flash memory read path: Building blocks and critical aspects [J].
Micheloni, R ;
Crippa, L ;
Sangalli, M ;
Campardo, G .
PROCEEDINGS OF THE IEEE, 2003, 91 (04) :537-553
[6]   Circuit techniques for 1.5-V power supply flash memory [J].
Otsuka, N ;
Horowitz, MA .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1997, 32 (08) :1217-1230
[7]   A new single ended sense amplifier for low voltage embedded EEPROM non volatile memories [J].
Papaix, C ;
Daga, JM .
PROCEEDING OF THE 2002 IEEE INTERNATIONAL WORKSHOP ON MEMORY TECHNOLOGY, DESIGN AND TESTING, 2002, :149-153
[8]   A 130-nm 0.9-V 66-MHz 8-Mb (256K x 32) local SONOS embedded flash EEPROM [J].
Seo, MK ;
Sim, SH ;
Oh, MH ;
Lee, HS ;
Kim, SW ;
Cho, IW ;
Kim, GH ;
Kim, MG .
IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2005, 40 (04) :877-883