Reconfiguration and Defect Tolerance in Quantum-dot Cellular Automata Based Nano-Devices

题目：基于量子点元胞自动机的纳米器件的重构和缺陷容错espi: Xiaobo Sharon HuCo-PIs: maria Lieberman， Wolfgang PorodInst: University of Notre dame摘要：tnsf单位考虑：CPA -计算过程和工件的基础建议的工作是构建可重构逻辑和设计基于量子点元胞自动机（QCA）的纳米级器件的缺陷检测、诊断和容错技术。基于QCA的器件与传统CMOS器件有着根本的区别。随着CMOS器件尺寸的不断缩小，它们有可能缓解互连和功耗方面的挑战。基本的QCA结构已经在半导体量子点和纳米磁体上得到了实验证明。用分子电荷容器实现QCA设备也显示出巨大的前景。虽然QCA是一种很有前途的计算范例，但它面临着与所有其他纳米级设备相同的挑战。也就是说，缺陷率预计会很高。可重构逻辑和缺陷容错设计被认为是规避高缺陷率影响的两种有效手段。该项目将显著扩展在QCA模型下构建可重构逻辑的最新技术。项目的成功完成将带来新的可重构逻辑结构和新的缺陷检测和诊断方案。所提出的工作将有助于预测制造大规模基于qca的可重构电路是否可行，以及此类电路是否可以成为后cmos计算替代方案的有力竞争者。这项提议的工作将不仅在设计界，而且在物理科学界产生重大影响。它将为在电荷耦合计算模型的背景下设计可重构逻辑和电路提供新的知识。它还将发挥重要作用，为致力于探索实现QCA设备的各种技术的物理科学家提供有价值的反馈。作为提议工作的一个组成部分，将开发一个新的基于QCA的计算课程模块，强调这个令人兴奋的研究领域的跨学科性质。将系统地招收本科生，特别是从代表性不足的群体中招收本科生参与该项目。

Project ID: 0702705Title: Recon_guration and Defect Tolerance in Quantum-dot Cellular Automata Based Nano-DevicesPI: Xiaobo Sharon HuCo-PIs: Marya Lieberman, Wolfgang PorodInst: University of Notre DameABSTRACTNSF Unit Consideration: CPA - Foundations of Computing Processes and ArtifactsThe proposed work is on constructing reconfigurable logic and devising defect detection, diagnosis and tolerance techniques for Quantum-dot Cellular Automata (QCA) based nano-scale devices. QCA- based devices differ fundamentally from traditional CMOS ones. They have the potential to alleviate challenges from interconnects and power consumption as CMOS device sizes continue to shrink. Basic QCA constructs have been experimentally demonstrated with both semiconductor quantum dots and nano-magnets. Implementing QCA devices with molecular charge containers has also shown greatpromise. Though being a promising computing paradigm, QCA faces a same challenge as all other nano-scale devices. That is, defect rates are expected to be high. Reconfigurable logic and defect tolerance design are considered to be two powerful means to circumvent the effects of high defect rates. This project will significantly extend the state-of-the-art in constructing reconfigurable logic under the QCA model.Successful completion of the project will lead to both novel reconfigurable logic constructs and new defect detection and diagnosis schemes. The proposed work will help predict whether it is practical to fabricate large scale QCA-based reconfigurable circuits, and whether such circuits can become a strong contender as a post-CMOS computing alternative. The proposed work will have a significant impact not only within the design community but also in the physical science community. It will contribute new knowledge in designing reconfigurable logic and circuits in the context of charge-coupled computing models. It will also play an important role in providing valuable feedback to physical scientists working on exploring various technologies for implementing QCA devices. As an integral part of the proposed work, a new course module on QCA- based computing will be developed, which emphasizes the interdisciplinary nature in this excitingresearch area. A systematic endeavor will be made in recruiting undergraduate students, especially from the under-represented groups, to participate in the project.