电荷泵技术在高压 MOS晶体管可靠性研究中的应用

主要阐述了电荷泵技术在14 V HV MOS晶体管可靠性研究中的应用.使用了一种改进的电荷泵技术分析了经过热载流子加压后的器件特性.使用这种方法,我们可以精确描述器件损伤的位置和程度,以及可以精确评估由于HCI效应引起的界面缺陷的变化,为器件优化与工艺改进提供重要参考信息.     

一种改进的MOS器件热载流子退化模型

An improved hot carrier injection （HCI） degradation model was proposed based on interface trap generation and oxide charge injection theory. It was evident that the degradation behavior of electric parameters such as Idlin, Idsat, Gm and Vt fitted well with this model. Devices were prepared with 0.35μm technology and different LDD processes. Idlin and Idsat after HCI stress were analyzed with the improved model. The effects of interface trap generation and oxide charge injection on device degradation were extracted, and the charge injection site could be obtained by this method. The work provides important information to device designers and process engineers.     

蓝牙技术在无线实验室网络中的应用

提出利用蓝牙技术组建蓝牙无线实验室网络方案,以实现实验室局域网的无线化,并省去了实验室内计算机和仪器设备之间的复杂连线.同时为实现DSP实验设备与计算机之间的无线通信,设计了蓝牙替代电缆模块, 给出了模块的硬件结构和软件设计.     

基于LabVIEW的HCI参数测试系统设计

为了解决利用仪器手动测量器件可靠性既效率不高,又容易出错的问题,根据热载流子可靠性测试原理,以LabVIEW8.5为平台设计了半导体器件HCI参数自动测试系统。介绍了该系统的硬件、软件构成,详细介绍了软件设计及功能实现。实验结果表明,该系统运行稳定,测量速度快,结果精度高,提高了测量人员的效率,且程序具有很好的扩展性。     

基于手机使用情景的交互设计研究

目的明确使用情景的定义,并针对现有产品在不同使用场景下形成的交互形态进行分析,探究不同场景下产品使用时用户的交互诉求以及期望的交互体验,达到探索新的功能及交互方式的目的。方法以使用情景理论依据为研究基础,结合诺曼UCD理论和诺曼行为分析系统,了解用户在心理世界与现实世界中对信息处理的分类与筛选的方法,以此对用户在不同使用情景下的交互行为进行分析或预期,提出基于使用情景的交互设计方法基本方式,为交互设计提供新思路。结论通过得出的基于使用场景的交互设计方法,以现有手机拍照交互设计为实例,提炼出用户在不同场景中交互体验的需求痛点,针对用户的使用痛点,结合用户的使用诉求,提出创新的交互方式,以此初步证明研究思路的可行性。     

When the chips are down: Social and technical aspects of computer failure and repair

This paper explores computer failure as a social event by examining recorded interactions between computer users and help-desk consultants (technicians). It was found, first, that the nature of a failure was negotiated between participants rather than being simply technically evident. Failure was defined from users' perspectives, in relation to what they were trying to achieve, rather than according to technical parameters. Secondly, negotiations of failure had social consequences for both users and help-desk consultants. Both avoided being seen as incompetent and actively defended their social standing. Thirdly, such social issues sometimes took precedence over technical and practical ones. The implications for HCI theorists and practitioners are twofold: firstly, failure should be accepted as a regular part of computer use in which human–computer interaction continues even though the interface may be non-functional. Secondly, the management of failure could be better addressed if technicians were trained in social as well as technical intervention skills.     

基于Linux的蓝牙系统核心协议栈的设计与实现

本文设计与实现的基于Linux平台的Bluetooth核心协议栈主要由四个模块组成：服务发现协议SDF模块，逻辑链路控制与适配协议L2CAP模块，串行线路模拟协议RFCOMM模块和主机控制接口HCI模块。在本核心协议栈的设计过程中，始终将提高整个协议栈的执行效率作为第一目标。为提高协议栈的效率，对协议栈进行了设计优化，采用了状态自动机、散列技术、缓冲机制、开放式平台、硬件模拟技术等一些先进技术。     

Influences of haptic communication on a shared manual task

With the advent of new haptic feedback devices, researchers are giving serious consideration to the incorporation of haptic communication in collaborative virtual environments. For instance, haptic interactions based tools can be used for medical and related education whereby students can train in minimal invasive surgery using virtual reality before approaching human subjects. To design virtual environments that support haptic communication, a deeper understanding of humans′ haptic interactions is required. In this paper, human′s haptic collaboration is investigated. A collaborative virtual environment was designed to support performing a shared manual task. To evaluate this system, 60 medical students participated to an experimental study. Participants were asked to perform in dyads a needle insertion task after a training period. Results show that compared to conventional training methods, a visual-haptic training improves user′s collaborative performance. In addition, we found that haptic interaction influences the partners′ verbal communication when sharing haptic information. This indicates that the haptic communication training changes the nature of the users′ mental representations. Finally, we found that haptic interactions increased the sense of copresence in the virtual environment: haptic communication facilitates users′ collaboration in a shared manual task within a shared virtual environment. Design implications for including haptic communication in virtual environments are outlined.     

The technology profile inventory: Construction,validation, and application

The technology profile inventory (TPI) measures attitudes toward computers and the internet. We describe the most recent phase of the construction of the TPI. The studies reported refine and validate the instrument, and we present the final version as an Appendix A. Using a new sample of respondents (N = 394), we replicated the three major factors found previously (Confidence, Approval, and Interest). The TPI scores were related to patterns of information technology (IT) usage and also to gender. To demonstrate the practical utility of the TPI we report (1) results linking TPI scores to behavior during an internet search task; (2) test–retest results obtained as part of a cognitive training experiment using action video games; and (3) results showing that attitudes to IT may be modified by a particular experience with information technology.     

导弹装备虚拟维修训练系统通用平台

针对当前导弹装备虚拟维修训练系统开发只针对单一型号和专用功能、效率低、开放性和通用性差的问题,对基于资源重用性、系统通用性的导弹装备虚拟维修训练通用平台进行研究,阐述通用平台包含的视景仿真、故障机理建模与管理、人机交互、维修任务控制4类模块及2种典型训练模式,探讨通用平台设计中的4项关键技术。介绍通用平台的总体结构设计和基于EON Studio开发的虚拟维修训练原型系统。