查询词典 semiconductor

We have conducted measurements in heterodyne detection including superconductor mixers and semiconductor harmonic mixers, direct detection including InSb semiconductor bolometer and Golay Cell, and some materials which could be permeated by terahertz waves.

测得的频谱分辨率可达约1 GHz。我们已经测量的器件有：超导隧道结混频器和工作于常温的半导体肖特基谐波混频器，InSb半导体Bolometer和Golay Cell直接检测器，各种频率的THz信号源，和一些能透过THz的材料等。

The method includes the following steps: a semiconductor basal body is provided and the insulating layer of the semiconductor basal body is plated with light-sensitive lacquer and then is exposed in light and at last is developed; etching process is carried out to make a through hole on the insulating layer; cineration process is done, the remanent light-sensitive lacquer is removed and the temperature for the cineration process is 20-50 DEG C; wet cleaning process is carried out.

该制造方法包括如下步骤：提供半导体基体，对半导体基体的绝缘层进行镀光刻胶步骤、曝光步骤、显影步骤；进行蚀刻步骤，在绝缘层上形成通孔；进行灰化步骤，将剩余的光刻胶移除，且灰化步骤的温度条件范围是20-50摄氏度；进行湿法清洗步骤。

This article provides a look at the unique dynamics of the semiconductor industry through the activities of one of its consortia, the Semiconductor Research Corporation.

本文提供了在半导体产业的独特动力通过其财团之一的活动来看，半导体研究公司。

The nitride semiconductor Schottky electrode has a stack structure of a cupper having contact with a nitride semiconductor and a first electrode material formed on an upper layer of the cupper.

该氮化物半导体肖特基电极具有分层结构，该分层结构包括与氮化物半导体接触的铜层和在铜的上层上形成的第一电极材料。

In Two-Transistor Flyback Converter circuit, a power semiconductor device in Flyback Converting circuit has been replaced by two power semiconductor devices which parallel connected with an ultra-fast diode with soft recovery characteristics. Two-Transistor Flyback Converter can reduce greatly the switching stress of the power switch and does not need to degausser, suitable for high input voltage Switching Power Supply.

反激变换是从Buck-Boost变换演变而来的，将反激变换电路中的单个功率开关管用两个替代，并在每个功率开关管上并联一十箝啦的快恢复二极管而形成的双晶体管反激变换电路，能大大降低功率开关管承受的开关应力，且不需要消磁电路，非常适用于高输入电压的开关电源。

In some embodiments, a graded semiconductor buffer layer is located beneath the buried oxide layer, while in other a doped semiconductor layer including Si doped with at least one of B or C is located beneath the buried oxide layer.

在一些实施方案中，渐变半导体缓冲层位于隐埋氧化物层下面，而在其他实施方案中，包含掺杂有B或C中至少一种的Si的掺杂半导体层位于隐埋氧化物层下面。

Selective doping has been proved to be a semiconductor oxide improve the photocatalytic activity of the most effective ways The introduction of certain metal ions can greatly improve the photocatalytic oxidation efficiency, Recently, a lot on the adoption of the doping to improve the photocatalytic oxidation performance reports, doped semiconductor photocatalysis material because of its physical and optical properties change, thereby improving the photocatalytic properties.

有选择性的进行掺杂已被证明是一种提高半导体氧化物光催化活性的极其有效的方法，掺入一定的金属阳离子能极大的提高TiO2的光催化效率，最近有大量的关于通过掺杂来提高TiO2的光催化性能的报道，掺杂的半导体光催化材料由于其物理和光学性质的改变，通过扩展光响应范围和提高光生电荷的分，从而提高了光催化性能。

Therefore, when Fe2O3 semiconductor doped with acceptor impurities of Ni, the acceptor impurities ionize and lead to the increase of conductive holes in the valence band and hence enhance the conduction capability of Fe2O3 semiconductor.

因此，当Fe2O3半导体中掺入Ni受主杂质后，受主杂质电离，使价带中的导电空穴增多，增强了Fe2O3半导体的导电能力。

The computer separately connects and controls the I/O end and A/D converter; the I/O end connects and controls the X, Y axis driving circuit and the semiconductor laser; the X, Y axis step-by-step driving circuit connects and controls the X, Y step-by-step electrical machines to control the dimensional platform; the beam of the semiconductor laser passes through the focusing drawtube with 0.1mm diameter to form the facula with the diameter less than 0.1mm; the facula irradiates on the detector surface of the XY dimensional displacement platform to produce the corresponding electric signals; the detector surface connects the A/D converter through the amplifier; the electrical signal is amplified and is converted into the data signal by the A/D converter and is sent to the computer for processing.

由计算机分别连接并控制I/O端口和A/D转换器，I/O端口分别连接并控制X、Y轴步进电机驱动电路和半导体激光器，X、Y轴步进电机驱动电路分别连接并控制X、Y轴步进电机，从而控制二维位移平台，半导体激光器的光束经过设有直径0.1mm小孔的聚焦镜筒形成＜0.1mm直径的光斑，光斑照射于设在XY二维位移平台上的探测器表面使其产生响应的电信号，探测器表面经放大器连接A/D转换器，电信号经放大器放大后，由A/D转换器转换为数据信号送计算机处理。

However, the output beam quality of semiconductor laser is poor. Because of the waveguide properties of their active areas, semiconductor lasers generate large divergence-angle beams with elliptically shaped intensity profiles.

由于半导体激光器的结构特点，使得它发出的光束在垂直于结平面方向上远场发散角和平行于结平面方向的远场发散角相差较大(在垂直和平行于结平面方向上的发散角大小分别在30°左右和10°左右)。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。