Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/70045
Title: Dynamic NBTI of PMOS transistors and its impact on device lifetime
Authors: Chen, G. 
Chuah, K.Y.
Li, M.F. 
Chan, D.S.H. 
Ang, C.H.
Zheng, J.Z.
Jin, Y.
Kwong, D.L.
Issue Date: 2003
Source: Chen, G.,Chuah, K.Y.,Li, M.F.,Chan, D.S.H.,Ang, C.H.,Zheng, J.Z.,Jin, Y.,Kwong, D.L. (2003). Dynamic NBTI of PMOS transistors and its impact on device lifetime. Annual Proceedings - Reliability Physics (Symposium) : 196-202. ScholarBank@NUS Repository.
Abstract: We report a new NBTI phenomenon for the first time for the p-MOSFETs with ultra thin gate oxides. We demonstrate that in a CMOS inverter circuit, the interface traps generated under the NBTI stressing in a p-MOSFET (corresponding to the "high" output state of the inverter) are subsequently passivated when the gate to drain voltage switches to positive (corresponding to the "low" output state of the inverter). As a result, it was found that this "Dynamic" NBTI (DNBTI) operating in a CMOS inverter circuit prolongs significantly the device lifetime while the conventional "static" NBTI (SNBTI) underestimates the device lifetime. Furthermore, the DNBTI effect is dependent of temperature and gate oxide thickness, however independent of operation frequency. A physical model is proposed for DNBTI that involves the interaction between hydrogen and silicon dangling bonds. This finding has significant impact on the determination of maximum operation voltage as well as lifetime projection for future scaling of CMOS devices.
Source Title: Annual Proceedings - Reliability Physics (Symposium)
URI: http://scholarbank.nus.edu.sg/handle/10635/70045
ISSN: 00999512
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

31
checked on Dec 9, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.