The Use of Ultra Violet Radiation to Improve Chips Used in Neural Synapses

使用紫外线辐射改进神经突触芯片

• 批准号: 9022386
• 负责人: John Tanner
• 金额: $ 22.46万
• 依托单位: Tanner Research Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-10-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022386&HistoricalAwards=false
• 关键词: Use; Ultra; Violet; Radiation; Improve

This project investigates the use of ultra-violet light to modify on-chip voltages. Analog quantities in on-chip long term storage can be used to compensate for fabrication variations and to provide variable synapses in neural networks. The voltage on floating gates in a standard CMOS integrated circuit (IC) can be set by shining uniform ultra-violet light on the chip and arranging the circuit geometry so that nearby active areas have the correct voltages. The use of ultra-violet light to set the weights on synapses in a Hopfield style neural network is being investigated. Research tasks include: (1) refine the basic circuit model through experimentation; (2) measure cycle lifetimes on circuits with a faster settling time; (3) investigate electrical methods of controlling charge on floating gates; (4) fabricate, test and refine a pattern recognition chip with floating node storage of synapse weights; and (5) identify and test circuits suitable for distribution as layout libraries.

本项目研究使用紫外线来改变 片内电压。 片内长期存储的模拟量 可用于补偿制造变化 神经网络中的可变突触 浮动电压 标准CMOS集成电路（IC）中的门可以通过以下方式设置： 将均匀的紫外光照射在芯片上， 电路几何形状，以便附近的有源区具有正确的 电压。 使用紫外线来设置重量 研究Hopfield型神经网络中的突触。 研究任务包括：（1）通过对基本电路模型的细化， （2）测量电路的循环寿命， 更快的建立时间;（3）研究电气方法， 控制浮栅上的电荷;（4）制作、测试和 改进具有浮动节点存储的模式识别芯片， 突触权重;以及（5）识别和测试适合于 分布为布局库。