共查询到20条相似文献,搜索用时 102 毫秒
1.
193nm光刻技术延伸方法 总被引:2,自引:2,他引:0
翁寿松 《电子工业专用设备》2004,33(11):14-16
介绍了提高193nm光刻分辨力的方法,如浸入式光刻技术、相位移技术等。并介绍了193nm浸入式光刻机的优点和前景。 相似文献
2.
介绍光纤网络改造中1 310 nm和1 550 nm传输技术的选择,提出两级光网建设中的相关问题,重点介绍光放大器和光分路器的设计、选用方法. 相似文献
3.
193nm浸入式光刻技术独树一帜 总被引:6,自引:2,他引:4
翁寿松 《电子工业专用设备》2005,34(7):11-14
介绍了193nm浸入式光刻机和193nm光刻胶的最新发展动态以及下一代193nm浸入式光刻机。 相似文献
4.
5.
研发≤65nm工艺的最新进展 总被引:1,自引:0,他引:1
本文介绍了当前世界顶级半导体公司、材料公司、设备公司和微电子科研中心研发65nm、45nm、32nm和5nm工艺的最新进展和成果。 相似文献
6.
从1310nm和1550nm两个光窗口特点入手,分别介绍了1310nm和1550nm光设备的结构和基本工作原理,并以图表的形式简明扼要地比较了两类光设备的特点和性能,最后从网络性价比的角度以实例介绍了1310nm和1550nm光设备选用的基本原则。 相似文献
7.
8.
9.
介绍目前杭州区县的传输体制及可采用的数字电视传输技术,介绍1550 nm光传输的可行性,并针对性地提出1550 nm光传输需要解决的关键问题,提出发展方向及规划。 相似文献
10.
本文首先介绍传输VOD业务的几种组网模式,并比较了1310nm和1550nm两种直调插播传输VOD系统,然后重点介绍了应用1550nm直调插播技术实现VOD互动点播的几个技术要点。最后对将来VOD业务传输的技术支撑进行了预测。 相似文献
11.
介绍光纤网络改造中1310nm和1550nm传输技术的选择,提出两级光网建设中的相关问题,重点介绍光放大器和光分路器的设计、选用方法。 相似文献
12.
13.
结合波纹膜片的压力敏感特性和光纤Bragg光栅(FBG)的应变传感特性,设计了一种新型的FBG渗压传感器。传感器通过拉杆式结构将波纹膜片在应力下的挠度变形转化为FBG的轴向应变,通过恒温条件下的压强标定试验,得出传感器的压强灵敏度约为20 nm/MPa,和普通光栅相比,其压强灵敏度提高了6 000多倍。对传感器探头内部的光栅进行了温度特性标定试验,通过温度补偿光栅消除外界温度对渗压测量结果的影响。将该传感器用于隧道涌水模型的开挖试验,测得模型注水过程中测点的渗压值不断增大并趋于稳定,隧道开挖过程中渗压值轻微波动,提升水位时渗压值急剧增大。 相似文献
14.
Presented is an optical test set which can be used with any vector network analyzer for measuring microwave transmission and reflection scattering parameters of fiber-optic components. Measurement configurations and operating characteristics are discussed. Calibration of the network analyzer, which is performed using fiber-optic offset shorts, matched load, and thru-calibration standards, is discussed; reflection error terms are computed, and de-embedded relations are given for transmission and reflection measurements. A frequency-response normalization is presented as an alternative means of de-embedding reflection magnitude and phase. Accuracy limitations are addressed in terms of connector repeatability, calibration repeatability, accuracy of the calibration standards, test-set dynamic range, and resolution. S matrices measured at 2.0 GHz are presented to illustrate the utility of characterizing fiber-optic components in terms of microwave performance when designing a microwave fiber-optic network 相似文献
15.
16.
17.
18.
19.
A prototype 16-terminal passive star bus suitable for carrier sense multiple access with collision detection (CSMA/CD)-based fiber-optic local-area network is described. Operation is at 16 Mbit/s over optical path lengths of 600 m. The optical wavelength is 830 nm. A novel and simple collision detection method based on listening onto the bus is incorporated within the system. In addition, data is scrambled instead of Manchester encoded. The effect that scrambling has on the collision detection method, as well as on the detection of both the bus idle state and the beginning and end of data packets is examined in detail. The network efficiency is calculated taking into account the operation of the scrambler as well as the collision detection method. 相似文献
20.
《Electron Devices, IEEE Transactions on》1971,18(9):713-718
Typically, dry-process-recording media is sensitive only in the ultraviolet (UV) region of the spectrum, where current phosphors and faceplate glasses are either inadequate or unavailable. Thus, it was considered necessary to develop new phosphors and fiber-optic faceplates for incorporation in high-resolution cathode-ray tubes (CRTs) to be used for these dry-process real-time-recording applications. Two rugged UV phosphors, which emit radiation centered near 320 nm and 380 nm, are joined with newly developed fiber-optic faceplates to produce CRTs that may be used to write on almost any of the mentioned recording media. Up to tenfold improvement in writing speed on appropriate media is shown to be possible. 相似文献