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上海市集成电路设计研究中心 《半导体技术》2002,27(2):8-8
在集成电路设计开发阶段,进行工程流片是关键一步。随着制造工艺的提高,流片费用不断上涨,已经成为阻碍中小设计企业的一大障碍。多项目晶圆计划能够降低实验性流片费用,有利于集成电路设计人才的培养。本刊特介绍了有关MPW项目及申请流程、计划等内容。 相似文献
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集成电路是电子工业的基础,以集成电路为基础的电子信息产业的发展,对国民经济的发展、对产业技术创新能力的提高及对现代国防建设都具有极其重要的作用。集成电路设计业则是集成电路产业链中的核心产业。制约集成电路产业发展的两个重要因素就是设 相似文献
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介绍了集成电路(IC)的多项目晶圆(MPw)服务及面向MPW服务的工作站管理与维护。随着工艺种类的日益增多及MPW服务的开展,对IC设计必不可少的工作站及相关工具软件进行有效的管理也越来越重要。本文首先介绍了MPW服务流程,随后介绍了多种工艺并存情况下工作站目录的设置与管理;还介绍了进行MPW服务时如何对设计自动化(EDA)软件进行配置和维护,并将这些软件分为工艺相关软件和非相关软件分别处理;最后,给出了一个MPW成功流片的实例。 相似文献
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作为众多无加工线半导体开发公司的主要加工厂家,加利福尼亚州圣荷塞(San Jose)的台湾半导体制造公司(或台湾积体电路股份公司,即台积,TSMC)开展了多项目晶圆加工服务。预计此举将降低 相似文献
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2007年3月26日,美国英特尔公司正式宣布,将投资25亿美元在中国辽宁省大连市建立一座生产300毫米晶圆的工厂,代号Fab68。这是英特尔在亚洲的第一座晶圆厂,此前英特尔在中国上海浦东和四川成都的两家工厂只负责封装和测试。 相似文献
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IC生产线开发新品和核算成本时,需要估算晶圆上有效芯片数。靠经验公式估算通常有较大误差。作者曾提出一个精确的计算晶圆上有效芯片数的椭圆公式[1],适合于大规格晶圆和高成品率的生产线上应用。本文给出了椭圆公式的推导过程。 相似文献
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Xinzhong Duo Li-Rong Zheng Hannu Tenhunen 《Analog Integrated Circuits and Signal Processing》2003,34(1):39-47
In this paper, embedded rectangular spiral inductors on Wafer-Level Packaged (WLP)RF/wireless chips were studied with 3D (three-dimensional) EM (electromagnetic)simulations. The performance of spiral inductors fabricated with various geometrical and technological parameterswas analyzed. It is shown that Q (the quality factor) and f
res (theself-resonance frequency) could be improved by using the thick insulator layer and thick/wide metal line,which are fabricated by WLP technology. The value of Q could be over 60 at 20 GHz for such embeddedcomponents, attesting a significant improvement compared to the conventional on-chip counterparts in CMOS. Throughthis study, optimal structures for such components are identified and guidelines for design and fabrications arederived. Finally, a method to estimate the inductance of rectangle spiral inductors is developed. It is useful todetermine the approximate structure of an inductor quickly before detailed 3D EM simulation, which may cost a longtime. 相似文献
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The field of marketing research in the satellite communication services is still in the early stage of its development. Particularly, in Korean domestic satellite service market, many theoretical and methodological opportunities now exist. In this paper we develop a model, which identifies target markets and promising application services in Korean satellite communication service market. One key contribution of this paper is a modeling approach to the assessment of market potential and priorities of the application services in each Korean industry. We define and estimate the degree of attractiveness for each segmented market which represents the market potential estimated by current usage of terrestrial services and each market segment's willingness to adopt satellite technology. Since all possible satellite application services are not equally important in the market, they should be differentiated in terms of the likelihood of success. We introduce another index prioritizing application services by tying together three important factors affecting Korean satellite service demand. Some marketing implications of model results are also discussed. Finally the findings of our model are compared with those of other similar studies. 相似文献
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手机铃声在一夜间成了手机“时尚潮流”的代名词,以前提醒手机用户接听电话的单音铃声,已经被动听、悦耳的音乐铃声取而代之。而铸就这一变迁的只因为一颗“心”——手机音源芯片的发展。 相似文献
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Rick Kozak 《International Journal of Network Management》1992,2(2):77-81
Local equal access—the ability to choose among local carriers versus only having the ability to use the monopoly supplier—will have far-reaching implications for the US telecommunications infrastructure. 相似文献
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通过均相沉淀法制备了纳米CeO2和Al2O3粉体,研究了在相同抛光条件下纳米CeO2、SiO2和Al2O3磨料对GaAs晶片的抛光效果,并用原子力显微镜观察抛光表面的微观形貌并测量表面粗糙度。结果表明,使用纳米CeO2磨料抛光后的表面具有最低的表面粗糙度,在1μm×1μm范围内表面粗糙度Ra值为0.740nm,而且表面的微观起伏更趋于平缓。文中还探讨了GaAs晶片化学机械抛光材料去除机理,考虑了纳米磨料在抛光条件下所发生的自身变形,并分析了纳米磨料硬度对抛光表面粗糙度的影响,初步解释了在相同的抛光条件下不同硬度的纳米磨料为什么具有不同的抛光表面粗糙度。 相似文献
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This paper describes a questionnaire-type survey conducted in 1970 of the nature, size, and composition of the likely market for broad-band two-way services to the home. Market demand characteristics are considered in detail for thirty likely services. The composite magnitude of the industry is estimated as essentially starting in 1980 and building up to a dollar volume of $20 billion per year. 相似文献
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Margery Conner 《电子设计技术》2009,16(1)
以太网供电使基本的5类或6类电缆能同时承载数据和电力,从而使人们能简单而廉价地安装VoIP电话、摄像机、无线接入点等设备。 相似文献
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我国电信市场环境的变化促使运营商寻求新的变革,3G就是其中最引人注目的一项。本分析了新进入移动市场的电信运营商的优势、劣势、机会及威胁,针对新运营商的市场切入点进行了探讨,并给出了新运营商市场进入策略的建议。 相似文献