Adaptive techniques for overcoming performance degradation due to aging in digital circuits
Proceedings of the 2009 Asia and South Pacific Design Automation Conference
Positive Bias Temperature Instability in nMOSFETs with ultra-thin Hf-silicate gate dielectrics
Microelectronic Engineering
Pragmatic design of gated-diode FinFET DRAMs
ICCD'09 Proceedings of the 2009 IEEE international conference on Computer design
Empirical performance models for 3T1D memories
ICCD'09 Proceedings of the 2009 IEEE international conference on Computer design
Analysis of SRAM and eDRAM cache memories under spatial temperature variations
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Impact of Negative-Bias Temperature Instability in Nanoscale SRAM Array: Modeling and Analysis
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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Memory circuits are playing a key role in complex multicore systems with both data and instructions storage and mailbox communication functions. There is a general concern that conventional SRAM cell based on the 6T structure could exhibit serious limitations in future CMOS technologies due to the instability caused by transistor mismatching as well as for leakage consumption reasons. For L1 data caches the new cell 3T1D DRAM is considered a potential candidate to substitute 6T SRAMs. We first evaluate the impact of the positive bias temperature instability, PBTI, on access and retention times of the 3T1D memory cell implemented in 45, 22 and 16nm technology. Then, we consider all sources of variations and the effect of the degradation caused by the aging of the devices and estimate the yield at system level.