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STT-RAM Test Chip #1. Weekly Status Report Date: Wed Oct-21-2009. Amr Amin Preeti Mulage UCLA CKY Group. Previous Action Items. Cell Design: Investigating LVT devices, 1.2V supply, boosted WL voltage Done Sensitivity analysis In progress ( need data about MTJ variations )
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STT-RAM Test Chip #1 Weekly Status Report Date: Wed Oct-21-2009 Amr Amin Preeti Mulage UCLA CKY Group
Previous Action Items • Cell Design: • Investigating LVT devices, 1.2V supply, boosted WL voltage Done • Sensitivity analysis In progress (need data about MTJ variations) • Memory Array • Reference cells for current sensing Done • Array schematic and layout Done • Column MUX schematic Done • Sense amp and “write” driver schematic Done • Connecting Top Cell In progress
Available Sensing Signal • I-Sense: ΔISIG vs. TMR for different values of RON
Available Sensing Signal • I-Sense: Contours of constant ΔISIG in the MTJ Space
Available Sensing Signal • V-Sense: ΔVSIG vs. TMR for different values of RP
Available Sensing Signal • V-Sense: Contours of constant ΔVSIG in the MTJ Space