Switching energy efficiency optimization for advanced CPU thanks to UTBB technology
Switching energy efficiency optimization for advanced CPU thanks to UTBB technology
复制标题
借助 UTBB 技术实现高级 CPU 的开关能效优化
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
F. Nyer
中科院分区：
文献类型：
--
作者：
F. Arnaud;Nicolas Planes;O. Weber;V. Barral;S. Haendler;Philippe Flatresse;F. Nyer
本文介绍了UTBB（超薄盒体）技术的上级性能，以提供高速低电压。我们的证据晶体管的能力，以维持充分的正向体偏置的解决方案，由于平面背侧栅极方案。对低复杂度电路的硅测量表明，通过简单地选择适当的电源和体偏置耦合（Vbb），动态功耗可以降低90%，而没有任何速度下降。一个简单的开关能量效率模型，然后提出允许（VBB; VBB）对预测达到最低能量点。最后，我们展示了一个完整的CPU内核实现与UTBB的总功耗降低了-30%和+40%的能源效率在相同的速度相对于散装技术由于背侧栅极偏置效率。
This paper presents the superior performance of UTBB (Ultra-Thin Box and Body) technology for providing high speed at low voltage. We evidence the transistor capability to sustain full forward-body-biasing solution thanks to a planar back-side gate scheme. Silicon measurements on low complexity circuits show that the dynamic power consumption can be reduced by 90% without any speed degradation by simply selecting the appropriate power supply and body bias couple (Vdd; Vbb). A simple switching energy efficiency model is then proposed allowing the (Vdd; Vbb) couple prediction reaching the minimum energy point. Finally, we demonstrate on a full CPU Core implementation with UTBB a total power reduction of -30% and a +40% energy efficiency at identical speed with respect to bulk technology thanks to back side gate biasing efficiency.