Nanotechnology: Silicon Nanoparticle Engineering for Novel Memory and Logic Applications

9871850 Atwater该项目的目标是开发合成，加工，操作和表征工具，以实现和改进新型新兴硅纳米颗粒存储器和逻辑器件。这些设备利用粒子合成，操纵，界面钝化和有序的，钝化的大小分类的硅纳米粒子的阵列集成到更大的设备结构的电气和光学特性的共同的方法。在这个项目中要解决的设备结构包括：基于场效应晶体管的纳米颗粒浮栅上的离散电荷存储的非易失性存储器，以及基于硅纳米颗粒的元胞自动机导线/逻辑门的实现，其中信息通过细胞间静电相互作用而不是电流来传播。在这个项目中开发的纳米粒子工程和组装方法可能使能够在室温下操作的细胞自动机逻辑门的第一个实现成为可能。 合成和加工的关键方面是纳米颗粒的尺寸、形状、电介质钝化厚度和化学计量以及纳米颗粒位置的控制。位置的控制是通过扫描探针显微镜使用力操纵在模型器件结构中实现的。另一个努力的目的是利用流体和胶体力来制造有序的线性和平面阵列。在单粒子水平的电荷状态和形态的表征进行使用导电尖端原子力显微镜。 该项目解决了具有高度技术相关性的科学和工程专题领域的基础研究问题。这项研究将为电子设备的重要方面提供基础知识。从研究中获得的基本知识和理解预计将有助于提高先进设备的性能，为设计和生产改进的材料和材料组合提供基本的理解和基础。 该计划的一个重要特点是通过在一个基本和技术上重要的领域对学生进行培训来整合研究和教育。这项研究补助金是根据纳米技术倡议（NSF 98-20），并共同资助的董事会工程，董事会计算机和信息科学与工程，以及董事会数学和物理科学。该研究小组是一个大学/工业/政府实验室合作之间的应用物理和化学工程教师在加州理工学院，技术人员在贝尔实验室/朗讯技术和喷气推进实验室。

9871850 Atwater This objectives of this project are to develop the synthesis, processing, manipulation and characterization tools to enable and improve novel, emerging silicon nanoparticle memory and logic devices. These devices exploit common approaches for particle synthesis, manipulation, interface passivation and electrical and optical characterization of ordered, passivated arrays of size-classified silicon nanoparticles which are integrated into larger device structures. Device structures to be addressed in this project include: a nonvolatile memory based on discrete charge storage on the nanoparticle floating gate of a field-effect transistor, and a silicon nanoparticle-based implementation for a cellular automata wire/logic gate, in which information is propagated by cell-cell electrostatic interactions rather than by current flow. The nanoparticle engineering and assembly methods developed in this program may enable the first realization of a cellular automata logic gate capable of room temperature operation. Key aspects of the synthesis and processing are engineering of nanoparticle size, shape, dielectric passivation thickness and stoichiometry, and control of nanoparticle position. Control of position is achieved in model device structures using force manipulation by a scanning probe microscope. Another effort is aimed at utilizing fluid and colloidal forces to fabricate ordered linear and planar arrays. Characterization of charge state and morphology at the single particle level is performed using conducting tip atomic force microscopy. %%% The project addresses basic research issues in a topical area of science and engineering having high technological relevance. The research will contribute new knowledge at a fundamental level to important aspects of electronic devices. The basic knowledge and understanding gained from the research is expected to contribute to improving the performance of advanced devices by providing a fundamental understanding and a basis for designing and producing improved materials, and materials combinations. An important feature of the program is the integration of research and education through the training of students in a fundamentally and technologically significant area. This research grant is made under the Nanotechnology Initiative (NSF 98-20), and is co-funded by the Directorate for Engineering, the Directorate for Computer and Information Science and Engineering, and the Directorate for Mathematical and Physical Sciences. The research team is a university/industry/government lab collaboration between Applied Physics and Chemical Engineering faculty at the California Institute of Technology, and technical staff at Bell Labs/Lucent Technologies and the Jet Propulsion Laboratory.