MOMENTARY INFORMATION PROCESSING SYSTEM

本课题的研究目的是为“21世纪无线多媒体中的大脑和神经”奠定基础。1.纳米MOS器件物理研究0.1um MOSFET工艺技术的研究与开发。评估了超薄栅氧化层的击穿现象与可靠性的关系。在此基础上，提出了浅结中掺杂的扩散模型。这些结果将被应用于TCAD系统。Flexware系统灵活的功能四端Neu-MOS器件、矢量量化处理器、最高有效位优先计算方案，已被开发用于实时运动图像压缩。结果表明，可以实现计算能力是常规处理器2万倍的iTOPS/1W处理器。光布线并行处理LSI芯片针对光布线高速模式识别芯片，提出了光布线的设计方法、光布线的制作工艺和光发射/接收器件的集成技术。研究了高可靠的扩频码分多址无线通信系统千兆赫频段无线多媒体信息终端。对于下行链路接入，从基站到手持终端，采用2.46 Hz前端AIN声表面波匹配滤波器的分组SS-CDMA方案已经被开发出来。对于上行链路接入，从终端到基站，使用声表面波卷积器的准同步SS-CDMA蜂窝系统已经被开发出来。在一个150米半径的小区内，成功地获得了64ch/话音速率的码分多址信道号。

The purpose of this research project is to establish the basis of "brain and nerve in 21 st century's wireless multimedia."1. Nano-meter MOS device physicsResearch and development of 0.1um MOSFET process technology have been investigated. Breakdown phenomena of ultra-thin gate oxide were evaluated in relation to reliability. Furthermore, diffusion model of dopant in a shallow junction were proposed. These results are going to be adopted in TCAD system.2. Flexware systemFlexible functional four-terminal neu-MOS devices, vector quantization processor, most-significant- digit-first calculation scheme, have been developed for real-time motion picture compression. As a result, it is shown that ITOPS/1W processor, whose calculation power is 20,000 times as much as conventional one, can be realized.3. Optical wiring parallel processing LSI chipFor aiming optical wiring high-speed pattern recognition chip, a design method for optical wiring, a fabrication process for optical wiring, and integration technologies for light emission/receiver devices have been developed. Design and implementation methods for integrated optical waveguides have been established.4.Highly reliable SS-CDMA wireless communication systemGigahertz-band wireless multimedia information terminal has been investigated. For downlink access ; from basestation to handy terminal, packet SS-CDMA scheme using 2.46Hz front-end AIN SAW matched filter has been developed. For uplink access ; from terminal to basestation, approzisately-synchronized SS-CDMA cellular system using SAW convolver has been developed. CDMA channel number of 64ch/voice-rate is successfully oobtained in a 150m-radius cell.