Influence of Threshold Voltage Deviations on 90nm SRAM Core-Cell Behavior

Magali Bastian 1 V. Gouin 1 Patrick Girard 2 Christian Landrault 3 Alexandre Ney 3 Serge Pravossoudovitch 2 Arnaud Virazel 2
1 INFINEON - SOPHIA - Infineon Technologies France
2 SysMIC - Conception et Test de Systèmes MICroélectroniques
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
3 LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : Nanoscaled SRAMs are now becoming more and more prone to device parameter deviations. In this paper, we consider threshold voltage (Vt) deviations in 6T core-cells designed with 90 nm technology. Static faults (transition and read destructive) but also dynamic faults (dynamic read destructive) are obtained as resulting faulty behaviors. Moreover, electrical data show that PVT (process, voltage, temperature) corners that maximize the detection of these faults are quite unconventional. Especially, we show that Vt deviations have their main impact at low voltage while hard defects, such as resistive-open defects in the core-cell, better manifest themselves at high voltage. This study of parameter deviations opens an additional problematic for the test of nanoscaled SRAMS that will be much more severe in deeper technologies (65 nm and 45 nm).
Type de document :
Communication dans un congrès
ATS: Asian Test Symposium, Oct 2007, Beijing, China. 16th IEEE Asian Test Symposium, pp.501-504, 2007, 〈10.1109/ATS.2007.121〉
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https://hal-lirmm.ccsd.cnrs.fr/lirmm-00179276
Contributeur : Martine Peridier <>
Soumis le : lundi 15 octobre 2007 - 10:56:57
Dernière modification le : jeudi 24 mai 2018 - 15:59:24

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SYSMIC | LIRMM | LIRMM_MIC | MIC | MIPS | UNIV-MONTPELLIER

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Magali Bastian, V. Gouin, Patrick Girard, Christian Landrault, Alexandre Ney, et al.. Influence of Threshold Voltage Deviations on 90nm SRAM Core-Cell Behavior. ATS: Asian Test Symposium, Oct 2007, Beijing, China. 16th IEEE Asian Test Symposium, pp.501-504, 2007, 〈10.1109/ATS.2007.121〉. 〈lirmm-00179276〉

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