| Budget Amount *help |
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2016: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Outline of Final Research Achievements |
We have developed a microprocessor system running with unstable power sources such as a photovoltaic power supply system. The microprocessor has a functionality to stably run with very low supply voltages down to 0.3V. We have fabricated several microprocessor chips integrating our idea for saving the energy dissipation, which demonstrated the energy efficiency of our idea integrated on the chip. We also developed a technique of tuning supply voltage and threshold voltage simultaneously, which minimizes the energy consumption per performance of the microprocessor. The voltage tuning technique works effectively on the microprocessor chips fabricated. We have obtained several awards such as IPSJ Yamashita Memorial Award and IEEE SOCC Best Paper Award which are given for the achievements in this research project.
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