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Proceedings Paper

High speed sense amplifier with efficient pre-charge scheme for PCM in the 28nm process
Author(s): Qi Zhang; Houpeng Chen; Xi Fan; Yu Lei; Jiajun Hu; Xiaoyun Li; Qian Wang; Zhitang Song
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Paper Abstract

An improved sense amplifier with speed-up pre-charge scheme is introduced in this paper. What’s more, in order to avoid unexpected fatal damage while reading operation, clamp voltage is adopted. Distinguished with the conventional current sense amplifier, the proposed sense amplifier shortens not only the read access time by reducing the charging time due to parasite capacitor of storage cells but also the delay time because of the RC delay on wire by using two branches of pre-charge circuit at the both ends of bit lines. The simulation result taken in SMIC 28nm process shows that, with 1Kb PCM array, the proposed sense amplifier can efficiently reduce the access time from 33.7ns to 16.5ns.

Paper Details

Date Published: 12 October 2016
PDF: 4 pages
Proc. SPIE 9818, 2016 International Workshop on Information Data Storage and Tenth International Symposium on Optical Storage, 98180D (12 October 2016); doi: 10.1117/12.2245021
Show Author Affiliations
Qi Zhang, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Science (China)
Houpeng Chen, Shanghai Institute of Microsystem and Information Technology (China)
Xi Fan, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Science (China)
Yu Lei, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Science (China)
Jiajun Hu, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Science (China)
Xiaoyun Li, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Science (China)
Qian Wang, Shanghai Institute of Microsystem and Information Technology (China)
Univ. of Chinese Academy of Science (China)
Zhitang Song, Shanghai Institute of Microsystem and Information Technology (China)


Published in SPIE Proceedings Vol. 9818:
2016 International Workshop on Information Data Storage and Tenth International Symposium on Optical Storage
Fuxi Gan; Zhitang Song; Yang Wang, Editor(s)

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