A Study on on-chip memories suitable for near-threshold voltage operation

2016 Fiscal Year Final Research Report

• Project/Area Number: 26540021
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Computer system
• Research Institution: Kyoto University
• Principal Investigator: Ishihara Tohru 京都大学, 情報学研究科, 准教授 (30323471)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 電子デバイス・機器 / 低消費電力・高エネルギー密度 / エネルギー効率化

Outline of Final Research Achievements

We have developed on-chip memory subsystems running with very low supply voltages. It has a functionality to stably run with very low supply voltages down to 0.25V. We have designed memory circuits integrating our idea for saving the area and energy consumption, which demonstrated that the energy efficiency of our memory circuit is twice better than existing on-chip SRAMs. We also integrated the memory circuits on microprocessor chips. The processor chip well runs with less than 0.3V voltage supply. We have obtained several awards such as IPSJ Yamashita Memorial Award and IEEE SSCS Japan Chapter VDEC Design Award which are given for the achievements in this research project.

Free Research Field

計算機工学