共查询到20条相似文献,搜索用时 62 毫秒
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提出了一种新的RF-CMOS晶体管在片测试结构寄生模型,模型综合考虑了射频/微波条件下RF-MOST器件在片测试结构中的各种寄生效应.模型考虑了PAD-互连金属、互连金属-DUT(device under test)之间的非连续性,对互连金属和基底之间的寄生效应单独进行了考虑.通过引入一个新的元件,对PAD结构基底感性损耗进行表征.模型最终应用到采用CSM(Chartered Semiconductor Manufacture Ltd)0.25 μm RF-CMOS工艺制造的测试结构寄生效应等效电路建模中,高达40GHz测试和仿真数据验证了模型的良好精度. 相似文献
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《微纳电子技术》2019,(4):332-338
提出了一种新的基于RF CMOS技术的金属-氧化物-金属(MOM)电容宽频带建模方法。为了提高模型精度、扩展有效频带,模型在构造时加入了测试焊盘和输入/输出互连线的等效电路。测试结构是基于自身物理结构进行架构的,充分考虑了其在高频时引入的各种寄生效应。互连线模型考虑了高频时的趋肤效应。通过解析提取的方法,在低频时提取测试结构引入的容性和阻性寄生参数。采用物理公式计算互连线的等效电感和电阻以及高频下互连线产生的趋肤效应参数初值。对于模型拓扑结构和参数提取方法,采用40 nm RF CMOS工艺上设计所得连带测试结构MOM电容数据进行验证。在0.25~110 GHz的频率范围内,可得测试和仿真的S参数精确吻合。 相似文献
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在EKVv2.6本征模型基础上发展出一种新的、可用于低压低功耗CMOS RFIC CAD 的RF-MOSFET模型,模型对栅氧化层寄生电阻以及有损基底损耗进行了考虑.在对晶体管零偏和线性工作态下等效电路进行分析的基础上,开发出新的解析提取RF-MOSFET器件射频寄生参数的算法.模型最终应用到采用CSM(Chartered Semiconductor Manufacture Ltd)0.25μm RF-CMOS工艺制造的一共源连接、8栅指(每指尺寸长L=0.24μm,宽W=9.58μm)n-MOSFET 建模中,DC高达40GHz测量和仿真所得S参数对比结果验证了模型的良好精度. 相似文献
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RF-CMOS建模:面向低功耗应用的RF-MOSFET模型开发 总被引:1,自引:1,他引:0
在EKVv2.6本征模型基础上发展出一种新的、可用于低压低功耗CMOS RFIC CAD 的RF-MOSFET模型,模型对栅氧化层寄生电阻以及有损基底损耗进行了考虑.在对晶体管零偏和线性工作态下等效电路进行分析的基础上,开发出新的解析提取RF-MOSFET器件射频寄生参数的算法.模型最终应用到采用CSM(Chartered Semiconductor Manufacture Ltd)0.25μm RF-CMOS工艺制造的一共源连接、8栅指(每指尺寸长L=0.24μm,宽W=9.58μm)n-MOSFET 建模中,DC高达40GHz测量和仿真所得S参数对比结果验证了模型的良好精度. 相似文献
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提出了一个用于SPICE模拟高频互连 应的PCL互连电路模型,该模型考虑了频率对互连电感、电阻的影响,适用于从芯片间互连到芯片内互连高频效应的分析。基于所提出的互连模型,对频率达1000MHz时芯片内长互连线的延迟、串扰、过冲等互连寄生效应进行了分析,并指出了抑制互连效应的技术途径。 相似文献
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在GHz以上高频集成电路中,必须考虑互连线的电感寄生效应,以便对电路性能进行准确的分析和验证. K参数矩阵(部分电感矩阵的逆)由于其较好的局部化特性,被广泛接受并应用于对互连电感效应进行建模.但多数已有文献未考虑高频效应或效率不高.本文提出一种新的三维频变K 参数提取算法,通过与窗口技术相结合、以及窗口内线性方程组的有效求解,该算法具有较高的计算效率,同时,在此基础上,通过少量额外运算还可得出频变电阻.数值实验表明,该算法可处理复杂的互连结构,并且在保持较高准确度的情况下,其速度比电感提取软件FastHenry快几十至几百倍. 相似文献
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Meihua Shen Wilfred Pau Nicolas Gani Jianping Wen Shashank Deshmukh Thorsten Lill Jian Zhang Hanming Wu Guqing Xing 《半导体技术》2004,29(8)
This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration. 相似文献
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White organic light-emitting devices based on fac tris(2- phenylpyridine) iridium sensitized 5,6,11,12-tetraphenylnap -hthacene 总被引:1,自引:0,他引:1
We have fabricated the white organic light-emitting devices (WOLEDs) based on 4,4' -bis(2,2 -diphenyl vinyl)-1,1' - biphenyl (DPVBi) and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene (rubrene). The device structure is ITO/2T-NATA (20 nm)/NPBX (20 nm)/CBP: x%Ir(ppy)3:0.5% rubrene (8 nm)/NPBX (5 nm)/DPVBi (30 nm)/Alq(30 nm)/LiF(0.5 nm)/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris (2-phenylpyridine) iridium [Ir(ppy)3], acts as a yellow light-emitting layer, and N,N' -bis- (1-naphthyl)- N,N' -diphenyl -1, 1' -biphenyl-4,4' -diamine (NPBX) acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir (PPY)3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V. 相似文献
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Complete approach to automatic identification and subpixel center location for ellipse feature 总被引:1,自引:0,他引:1
XUE Ting WU Bin SUN Mei YE Sheng-hua 《光电子快报》2008,4(1):51-54
To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction. 相似文献
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Credence Systems Corporation 《半导体技术》2004,29(9)
Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V. 相似文献
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It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer (LDV). 相似文献
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正For a long time,optical and wireless systems/net-works are developed in separate communities witha few attempts for in-depth convergence.In fact,it prom-ises many advantages to combine the optical and wire-less technologies in the levels of systems and networks.Recently,both academia and industry have made manyefforts to enter a new phase of development to take op-tical and wireless systems as fully integrated networks.To provide high bandwidth and reliable service for bothfixed and mobile users,a well-designed network must 相似文献
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Zhang Xinsheng 《中国通信》2014,(1)
正Happy New Year!As we step into a new year,we take a look back at the key feature topics covered in China Communications over the past 12 months and set out our expecta- 相似文献
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正Cloud computing is a novel computing paradigm that utilizes remote cloud resources to achieve a high-performance computation.Cloud provides infrastructure,platform and software as different on-demand services.China has made remarkable progress in cloudbased products and operating system technology.The government,enterprises and research institutions are all active in the development of cloud computing-related projects.Despite the progress,many important problems 相似文献
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