On-chip magnetics for power management and delivery in multicore processors

用于多核处理器中电源管理和传输的片上磁性器件

• 批准号: 0903466
• 负责人: Kenneth Shepard
• 金额: $ 43万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0903466&HistoricalAwards=false
• 关键词: chip; magnetics; power; management; delivery

The objective of this research is to develop a new class of on-chip power electronics circuits that will enable highly granular, active power management for future multicore processors, allowing energy-delay trade-offs to be performed in the presence of workload variability. The approach is based on the introduction of magnetic materials as a "post-process" on a standard CMOS run. Intellectual Merit. Current implementations employ off-chip, board-level voltage regulation and bring in independent supply voltages from off-chip. Such approaches are not scalable and require that power be delivered to the chip at highly scaled voltage levels, leading to unsustainable current demands. We specifically address how passive magnetic devices can dramatically improve the design of on-chip power management and delivery circuits by providing for high density energy storage on-chip. We will innovate new magnetic devices (inductors and GMR sensors) that can be implemented on a conventional CMOS process. Broader Impacts. This project will allow the PIs to train graduate and undergraduate students in a truly cross-disciplinary research environment combining physics, nanoscale materials, circuit design, and power electronics applications. This research effort will also feed a new course at Columbia on power electronics, with a special emphasis on integrated approaches, bridging the disconnect between the power electronics community and the traditional integrated circuit design community. Significant effort will be made for K-12 outreach by systematically training highly motivated high school students within the program and also enhancing the interaction with the local K-12 educators.

这项研究的目的是开发一种新型片上电力电子电路，该电路将为未来的多核处理器实现高度精细的主动电源管理，从而允许在存在工作负载变化的情况下执行能量延迟权衡。该方法基于在标准 CMOS 运行中引入磁性材料作为“后处理”。 智力优点。 当前的实现采用片外、板级电压调节，并从片外引入独立的电源电压。 此类方法不可扩展，并且需要以高扩展电压电平向芯片供电，从而导致不可持续的电流需求。我们特别讨论无源磁性器件如何通过提供高密度片上能量存储来显着改进片上电源管理和传输电路的设计。 我们将创新可在传统 CMOS 工艺上实现的新型磁性器件（电感器和 GMR 传感器）。 更广泛的影响。 该项目将使 PI 能够在结合物理学、纳米材料、电路设计和电力电子应用的真正跨学科研究环境中培训研究生和本科生。 这项研究工作还将为哥伦比亚大学电力电子学新课程提供支持，特别强调集成方法，弥合电力电子社区和传统集成电路设计社区之间的脱节。通过在该计划内系统地培训积极性高的高中生，并加强与当地 K-12 教育工作者的互动，我们将大力开展 K-12 外展工作。