共建共享再出细则,市场之手与行政之手能否相得益彰?

近日,工信部、国资委联合发布《关于2015年推进电信基础设施共建共享的实施意见》(《意见》),对2015年电信基础设施共建共享进行了部署。近年来,国家一直在倡导电信基础设施的共建共享,事实上,早在2008年便有相关规定出台。与此前所不同的是,本次《意见》提出了"将中国铁塔股份有限公司纳入全国电信基础设施共建共享领导小组及办公室,将省级铁塔公司纳入省级共建共享协调机构",并明确要求三家运营商原则上不再自建铁塔等基站配套设施,小区宽带接入设施有     

因地制宜 江苏共建共享持续推进

自"推进电信基础设施共建共享"以来,江苏电信行业迅速谋划,认真落实,"逐步推进江苏电信基础设施的共建共享,取得初步成效。为巩固成果,进一步加快江苏电信基础设施共建共享工作推进步伐,省通管局要求,各公司要对铁塔、杆路等以外的其他通信设施的共建共享加强分析研究,根据当前的实际情况,围绕高速铁路的通信设施建设和无线室内分布系统的建设等方面,加强合作,齐心协力,共同探讨建设方案,切实推进电信基础设施共建共享。     

关于铁塔存量站点价值评估模型的研究

铁塔公司成立的目的在于减少电信行业内铁塔以及相关基础设施的重复建设,提高行业投资效率,进一步提高电信基础设施共建共享水平,从机制上进一步促进节约资源和环境保护,但是目前铁塔存量站址共享率较低,未能充分展现价值,90%以上的铁塔存量站址租赁模式单一,单纯依靠运营商网络频段的多重叠加来提高运营收入,经营收入单一,不利于资产资源的可持续发展[1]。应从影响存量站址效益的角度、考虑由内到外一系列因素,深入分析挖掘铁塔自有资源的潜在市场价值,建立站点价值评估模型,深入挖掘存量价值,匹配差异化方案,做好主动精准营销,提升铁塔效益。     

面向铁塔公司的共建共享系统设计与研究

随着铁塔公司的正式成立,为提升铁塔资源的管理效率和水平,文中提出了面向铁塔公司的电信基础设施共建共享管理系统的多种实现方案并对比分析。通过信息化技术手段,对铁塔资源的新建或共享流程管理,实现通管局、三家运营商和铁塔公司的电信基础资源共享。     

关于铁塔公司为运营商客户降本增效的思考

为全面推进电信基础设施共建共享,减少电信行业铁塔及相关基础设施的重复建设,提高行业效率,2014年7月18日,由三大运营商共同出资组建的中国铁塔股份有限公司（简称中国铁塔）正式成立。伴随铁塔公司的成立,我国通信业竞争态势成为热点。之前行业担心铁塔公司利用其产业链上的特殊地位实施垄断,或者从既是客户又是其股东的运营商那里获得超额收益,但是从实际运营看,铁塔建设的市场化竞争充分,铁塔公司在满足运营商需求的过程中双方争议点较多,如何化解争议正成为铁塔公司经营的一项主要任务。本文在分析铁塔公司与运营商客户矛盾点的基础上,探讨铁塔公司跨前一步,站在客户角度降本增效的建议。     

引入第三方或更有利于基站共享共享

253号文规定电信运营商已有的铁塔、杆路必须开放共享,不具备共享条件的应采取技术改造、扩建等方式进行共享。另外,拟新建铁塔、杆路的运营商必须告知其它运营商,根据其他它运营商的需求,实施共享、共建。253号文的实质是为了减少电信重复投资,提高电信基础设施利用率。在基站共建共享方面,笔者认为引入第三方是基站共建共享实施的有效途径：     

电信行业迎来大变局,全新需求推动建站变革

作为新形势下深化电信业改革的重要举措,中国铁塔股份有限公司(以下简称"铁塔公司")从最初的论证阶段到筹建成立,一直受到了社会各界的高度关注。随着铁塔公司的成立,其带来的市场变化无疑是业界关注的焦点。业内关心的是铁塔公司将承担什么样的使命,将如何开局?更为重要的是,铁塔公司会对运营商及整体产业链带来怎样的影响?共站建设成为主流有相关业内人士介绍,对于运营商而言,铁塔公司的成立将有利于避免电信基础设施的重复建设,提高行业投资效率,进一步提高电信基础设施共建共享水平,从机制上进     

室内覆盖系统的共建共享

工业和信息化部于2008年10月发布了《关于推进电信基础设施共建共享的紧急通知》,要求各运营商已经存在的设施要共享,新建的设施要共建,而且实行“一把手”负责制。在2009年电信设施的建设中,各地围绕共建共享做了很多工作。截至2009年8月底,全行业共减少新建铁塔2万个、杆路2万千米。     

创新模式与技术 推进共建共享

近年来,电信基础设施共建共享工作取得了一定的成绩,共建共享率逐年提高,但共建共享协调难、铁塔公司选址慢、新建投产率低等问题相继凸显,如何进一步转变工作观念、创新工作模式,加快电信基础设施共建共享工作,满足工业化、信息化融合发展的需求,是当前亟待解决的问题。在铁塔公司已成立、虚拟运营企业进入电信行业的背景下,积极探索创建新形势下电信基础设施建设共建共享新模式。     

基站存量资源整合探讨

铁塔公司成立后,接收了三大运营商庞大的铁塔及站点资源,大力推动了电信基础设施的共建共享建设,减少了重复投资和资源浪费。然而,如何整合三大运营商庞大的铁塔及站点资源、节能减排、节资增收是铁塔公司接下来亟待解决的问题。文章从社会效益、企业效益、环境保护等方面论述基站存量资源整合的必要性和重要性。通过对无线环境、塔桅、电源、机房空间、空调等多个影响基站存量资源整合的因素进行分析,提出解决问题的策略,并对基站存量资源整合的实施步骤提出建议。     

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.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.     

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.     

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.     

Electronic Structure of Semiconductor Nanocrystals

This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.     

Critical Stage Rule-Based Real Time Dispatch（RTD）System in Highly-Mixed-Products （HMP） FAB

An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.