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This paper investigates the impacts of Negative and Positive Bias Temperature Instabilities (NBTI and PBTI) on the stability and performance of Ultra-Thin-Body (UTB) GeOI 6T SRAM cells compared with the SOI counterparts. Worst case stress scenarios for Read and Write operations are analyzed. For UTB GeOI SRAM cells, PBTI dominates the degradations in RSNM, HSNM, cell Read access time, and Time-to-Write,...
This letter indicates that the ultra-thin-body (UTB) germanium-on-insulator (GeOI) MOSFETs preserve the leakage reduction property of stacking devices, while the band-to-band-tunneling leakage of bulk Ge-channel devices cannot be reduced by stacking transistors. The seemingly contradictory behavior of the stack-effect factors is explained by the difference in the flows of band-to-band-tunneling hole...
This work analyzes the power-performance of the emerging Ultra-Thin-Body (UTB) GeOI devices for logic circuit applications. The impacts of temperature and Vdd scaling on the leakage/delay are studied. Compared with the subthreshold leakage dominated SOI devices/circuits, the band-to-band tunneling dominated leakage currents of GeOI devices/circuits show less sensitivity to temperature. At 300°K and...
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