CMOS／SIMOX和CMOS／BESOI的γ射线辐照特性比较

用薄膜ＳＩＭＯＸ（ＳｅｐａｒａｔｉｏｎｂｙＩＭｐｌａｎｔａｔｉｏｎｏｆＯＸｙｇｅｎ）、厚膜ＢＥＳＯＩ（ｆｆｅｎｄｉｎｇａｎｄＥｔｃｈ－ｂａｃｋＳｉｌｉｃｏｎＯｎＩｎｓｕｌａｔｏｒ）和体硅材料制备了ＣＭＯＳ倒相器电路，并用６０Ｃｏγ射线进行了总剂量辐照试验。在不同偏置条件下，经不同剂量辐照后，分别测量了ＰＭＯＳ、ＮＭＯＳ的亚阈特性曲线，分析了引起ＭＯＳＦＥＴ阈值电压漂移的两种因素（辐照诱生氧化层电荷和新生界面态电荷）。对ＮＭＯＳ／ＳＩＭＯＸ，由于寄生背沟ＭＯＳ结构的影响，经辐照后背沟漏电很快增大，经３００Ｇｙ（Ｓｉ）辐照后器件已失效。而厚膜ＢＥＳＯＩ器件由于顶层硅膜较厚，基本上没有背沟效应，其辐照特性优于体硅器件。最后讨论了提高薄膜ＳＩＭＯＸ器件抗辐照性能的几种措施。     

用SPICE模拟薄膜SOI／CMOS集成电路

用ＳＰＩＣＥ模拟薄膜ＳＯＩ／ＣＭＯＳ集成电路＝ＴＦＳＯＩ／ＣＭＯＳＩＣｓｓｉｍｕｌａｔｉｏｎｕｓｉｎｇｓｐｉｃｅ［会，英］／ＸｉＸｕｅｍｅｉ…∥ＴｈｅＰｒｏｃｅｅｄｉｎｇｓｏｆｔｈｅＴｈｉｒｄＩｎｔｅｒｎａｔｉｏｎａｌＣｏｎｆｅｒｅｎｃｅｏｎＳｏｌｉ...     

自对准硅化物CMOS／SOI技术研究

在ＣＭＯＳ／ＳＩＭＯＸＳＯＩ电路制作中引入了自对准钴（Ｃｏ）硅化物（ＳＡＬＩＣＩＤＥ）技术，研究了ＳＡＬＩＣＩＤＥ工艺对ＳＯＩＭＯＳＦＥＴ单管特性和ＣＭＯＳ／ＳＯＩ电路速度性能的影响．实验表明，采用ＳＡＬＩＣＩＤＥ技术能有效地减小ＭＯＳＦＥＴ栅、源、漏电极的寄生接触电阻和方块电阻，改善单管的输出特性，降低ＣＭＯＳ／ＳＯＩ环振电路门延迟时间，提高ＣＭＯＳ／ＳＯＩ电路的速度特性．     

Al栅BESOI／CMOS器件的辐照特性

在表层硅厚度约６μｍＢＥＳＯＩ材料上，制备了Ａｌ栅ＣＭＯＳ器件。实验样品消除了纵向寄生结构和困扰ＳＯＩ薄膜器件的背沟效应、边缘效应、Ｋｉｎｋ效应。样品未作抗辐照工艺加固，γ累积辐辐照剂量已达３×１０５ｒａｄ（Ｓｉ）。实验表明，该结构埋层ＳｉＯ２的存在对器件的辐照性能影响不明显。     

在Si衬底上生长高跨导p型Ge沟MODFET

在Ｓｉ衬底上生长高跨导ｐ型Ｇｅ沟ＭＯＤＦＥＴ＝ｐ－ＴｙｐｅＧｅ－ｃｈａｎｎｅｌＭＯＤＦＥＴ’ｓｗｉｔｈｈｉｇｈｔｒａｎｓｃｏｎｄｕｃｔａｎｃｅｇｒｏｗｎｏｎＳｉｓｕｂｓｔｒａｔｅｓ［刊，英］／Ｋｏｎｉｇ，Ｕ．…／／ＩＥＥＥＥｌｅｃｔｒｏｎＤｅｖｉｃｅ...     

自对准硅化物SOI／CMOS技术研究

在ＳＯＩ／ＣＭＯＳ电路制作中引入了自对准钴硅化物（ＳＡＬＩＣＩＤＥ）技术，研究了ＳＡＬＩＣＩＤＥ工艺对ＳＯＩ／ＭＯＳＦＥＴ单管特性和ＳＯＩ／ＣＭＯＳ电路速度性能的影响。实验表明，ＳＡＬＩＣＩＤＥ技术能有效地减小ＭＯＳＦＥＴ栅、源、漏电极的寄生接触电阻和薄层电阻，改善单管的输出特性，降低ＳＯＩ／ＣＭＯＳ环振电路门延迟时间，提高ＳＯＩ／ＣＭＯＳ电路的速度特性。     

SOI材料与器件的辐照效应

目前，ＳＯＩ（ＳｉｌｉｃｏｎＯｎＩｎｓｕｌａｔｏｒ）材料的一个主要用途是用来制作抗辐照电路，本文以ＳＩＭＯＸ（ＳｅｐｅｒａｔｉｏｎｂｙＩＭｐｌａｎｔａｔｉｏｎｏｆＯＸｙｇｅｎ）技术为主，详细论述了ＳＯＩ材料和器件（ＭＯＳＦＥＴ）的辐照特性及其机理，包括总剂量、瞬时和单粒子效应，并以总剂量效应为主。经过恰当的加固工艺和优化设计，可以制造出优良的抗辐照集成电路。     

超薄SOI MOSFET漏击穿机理的分析

超薄ＳＯＩＭＯＳＦＥＴ漏击穿机理的分析＝Ａｎａｌｙｓｉｓｏｆｔｈｅｄｒａｉｎｂｒｅａｋｄｏｗｎｍｅｃｈａｎｉｓｍｉｎｕｌｔｒａ－ｔｈｉｎ－ｆｉｌｍＳＯＩＭＯＳＦＥＴ，ｓ［刊，英１］／Ｙｏｓｈｉｍｉ．Ｍａｋｏｔｏ∥ＩＥＥＥＴｒａｎｓ．ＥｌｅｃｔｒｏｎＤ...     

注氟SIMOX隐埋SiO_2的辐照感生电荷分布特性

对常规工艺制备的ＳＩＭＯＸ（ＳｅｐａｒａｔｉｏｎｂｙＩＭｐｌａｎｔａｔｉｏｎｏｆＯＸｙｇｅｎ）材料，注入不同剂量的Ｆ＋并退火，其电容经（６０）Ｃｏγ射线电离辐照后平带电压漂移较小，通过同理论值相比较，说明Ｆ＋的注入减少了ＳＩＭＯＸ隐埋ＳｉＯ２层（ＢＯＸ：ＢｕｒｉｅｄＯＸｉｄｅ）的空穴陷阱浓度，增强了ＳＩＭＯＸ的抗电离辐照能力．     

薄膜全耗尽SOI门阵列电路设计与实现

在Ｄａｉｓｙ系统上设计出通用性强、使用方便的ＳＯＩ门阵列母版及门阵列电路，并采用１．５ｕｍＣＭＯＳ／ＳＯＩ工艺在薄膜全耗尽ＳＩＭＯＸ材料上得以实现，其中包括多种分频器电路和环形振荡器，环振可工作在２．５Ｖ，门延误时间在５Ｖ时为４３０ｐｓ。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

A method for calculating the center position of collimated light

It is a key problem to accurately calculate beam spots＇ center of measuring the warp by using a collimated laser. A new method, named double geometrical center method （DGCM）, is put forward for the first time. In this method, a plane wave perpendicularly irradiates an aperture stop, and a charge couple device （CCD） is employed to receive the diffraction-beam spots, then the geometrical centers of the fast and the second diffraction-beam spots are calculated respectively, and their mean value is regarded as the center of datum beam. In face of such adverse instances as laser intension distributing defectively, part of the image being saturated, this method can still work well. What＇s more, this method can detect whether an unacceptable error exits in the courses of image receiving, processing and calculating. The experimental results indicate the precision of this method is high.     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.