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2017 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP)最新文献

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High performance pH sensor by using silicon nanowire array 采用硅纳米线阵列的高性能pH传感器
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984463
Xun Yang, Shixing Chen, Yi Wang, Yuelin Wang, Tie Li
This paper presents a low-cost and high-precision pH sensor using silicon nanowire (SiNW) array. With the help of traditional microfabrication technology, low-cost as well as highly controllable SiNW array was fabricated. After functionalized with APTES solution, SiNW array shows rapid and reliable response to pH value. With excellent linearity and repeatability, accuracy of the sensor can be achieved at ± 0.1pH. Further unknown pH value solutions are used to confirm the accuracy of the meter.
本文提出了一种低成本、高精度的硅纳米线阵列pH传感器。利用传统的微细加工技术,制备了低成本、高可控的SiNW阵列。经APTES溶液功能化后,SiNW阵列对pH值的响应快速可靠。具有良好的线性度和重复性,传感器的精度可在±0.1pH下实现。进一步未知的pH值溶液被用来确认仪表的准确性。
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引用次数: 1
Coriolis vibrating gyroscope modelling for parametric identification and optimal design 科里奥利振动陀螺仪的建模参数辨识与优化设计
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984461
L. Delahaye, J. Guerard, F. Parrain
Coriolis vibrating gyroscopes can be modeled by a planar resonator, using masses, springs and damping. In this paper, the corresponding equations are studied in order to characterize real vibrating cells. It is shown how to present the problem to allow efficient numerical simulations and analytic developments. In particular, the use of the method of Averaging is fundamental, simplifying most of the calculations. All aspects of the oscillations are described and synthesized into a set of either geometrical parameters or canonical quantities, such as the energy of the trajectory. Thus, the properties of vibrating cells can be evaluated, and different operating modes as open-loop or closed-loop are exploited. Computer tools are developed to identify the flaws of real cells. Among them, a MODELICA simulator computes the time series of the gyroscope outputs for any stimulus, including transients, and a MAXIMA Taylor expansion code generates the analytical expressions of steady state and transients for start/stop. Both methods agree within 0.5%.
科里奥利振动陀螺仪可以用一个平面谐振器,利用质量、弹簧和阻尼来建模。本文研究了相应的方程,以便对实际振动单元进行表征。它展示了如何提出问题,以允许有效的数值模拟和分析发展。特别是,平均法的使用是基本的,它简化了大部分的计算。振荡的所有方面都被描述并合成为一组几何参数或规范量,如轨迹的能量。因此,可以评估振动单元的性质,并利用不同的工作模式作为开环或闭环。开发了计算机工具来识别真实细胞的缺陷。其中,MODELICA模拟器计算陀螺仪输出的任何刺激(包括瞬态)的时间序列,MAXIMA Taylor展开代码生成稳态和启动/停止瞬态的解析表达式。两种方法的误差都在0.5%以内。
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引用次数: 1
Reliability of ball grid array subjected to temperature cycling 温度循环作用下球栅阵列的可靠性
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984491
W. Chuang, Ben Tsai, Wei-Long Chen, J. Su
This study established a simulation model for reliability of Ball Grid Array (BGA) IC package subjected to temperature cycling. COMSOL Multiphysics software was used to established a simulation model and this study used Garofalo-Arrheniuss Law creep equation and Modified Coffin-Manson equation to estimate fatigue life of chip subjected to temperature cycling test (TCT). Since the thermal expansion coefficients between the materials are mismatch, chip would occur warpage. The solder ball of peripheral edge was cracked firstly, and the estimated error of solder ball life is 15.7% compared with experimental value. This study could find out the position where the solder ball first cracked which was not the position of maximum stress but was the position of the maximum strain range.
建立了温度循环作用下球栅阵列(BGA)集成电路封装可靠性的仿真模型。利用COMSOL Multiphysics软件建立仿真模型,采用Garofalo-Arrheniuss定律蠕变方程和修正Coffin-Manson方程对温度循环试验(TCT)下的芯片疲劳寿命进行估算。由于材料之间的热膨胀系数不匹配,导致芯片翘曲。外围边缘焊锡球首先发生裂纹,焊锡球寿命估计值与实验值的误差为15.7%。通过研究,可以找出焊接球最先开裂的位置,而不是最大应力位置,而是最大应变范围的位置。
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引用次数: 3
Thin film based flexible current sensor using a micropatterned Cu coil 采用微图案铜线圈的薄膜柔性电流传感器
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984504
T. Yamashita, R. Maeda, T. Itoh
This paper reports a novel thin film based flexible clamp-on type current sensor with 250 turns micropatterned Cu coil (line / space = 50 μm / 105 μm) formed by through-holes and flexible printed circuits (FPC) technologies for wireless sensor networks. Using flexible electronics techniques, microvias and fine stripe Cu patterns could be formed around 60-mm-long and 14.5-mm-wide permalloy film sandwiched between 40-mm-lomg and 20-mm-wide polyimide films with a high precision. Since the sensor has high flexibility, it can be used by winding the cable and drastically reduce the installation space. Furthermore, it can construct wireless sensor networks without external power supply because wireless nodes can drive by utilizing the secondary current generated in the coil of the sensor by the behavior of current transformer. Coil resistance between contact pads was about 241 Ω. The output voltage (V„) changed linearly with variation of the value of primary current (Cp) in the 0 to 20 A range. Cp-F„ sensitivity was about 39.4 mV/A. The sensor can be fabricated by roll-to-roll FPC mass production facility because it is developed using only FPC technology.
本文报道了一种新颖的薄膜柔性夹紧式电流传感器,该传感器采用250匝微图案铜线圈(线距= 50 μm / 105 μm),由通孔和柔性印刷电路(FPC)技术形成,用于无线传感器网络。利用柔性电子技术,微孔和细条纹Cu图案可以高精度地形成大约60毫米长和14.5毫米宽的坡莫合金薄膜,夹在40毫米长和20毫米宽的聚酰亚胺薄膜之间。由于传感器具有很高的灵活性,可以通过缠绕电缆来使用,大大减少了安装空间。此外,无线节点利用电流互感器的特性,利用传感器线圈中产生的二次电流进行驱动,可以在没有外部电源的情况下构建无线传感器网络。接触盘之间的线圈电阻约为241 Ω。输出电压(V ' ')在0 ~ 20 A范围内随一次电流(Cp)值的变化呈线性变化。Cp-F的灵敏度约为39.4 mV/A。由于该传感器仅采用FPC技术开发,因此可以通过卷对卷FPC量产设备制造。
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引用次数: 0
Development of micro batteries based on micro fluidic MEMS packaging 基于微流体MEMS封装的微电池研制
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984497
R. Hahn, M. Ferch, K. Hoeppner, M. Queisser, K. Marquardt, G. Elia
A cost effective and reliable technology allowing extreme miniaturization of batteries into silicon, glass chips and electronic packages has been developed, employing a dispense-print process for battery electrodes and liquid electrolyte. Lithium-ion micro batteries (active area 6×8 mm2, 0.2–0.4 mAh) with interdigitated electrodes and glass housing were fabricated, tested and finally compared with the traditional battery architecture of stacked electrodes. All processes for micro battery fabrication were established; in particular a micro fluidic electrolyte filling process that allows simultaneous electrolyte supply of all cells on a planar substrate. Electrode mass reproducibility was sufficient for adequate electrode balancing. Current capability similar to the conventional face-to-face electrode configuration was achieved with interdigital electrodes. The cells were successfully cycled; several 100 cycles can be achieved.
已经开发出一种经济可靠的技术,可以将电池极度小型化到硅、玻璃芯片和电子封装中,该技术采用了电池电极和液体电解质的点喷打印工艺。制备了具有交错电极和玻璃外壳的锂离子微电池(活性面积6×8 mm2, 0.2-0.4 mAh),并对其进行了测试,最后与传统的堆叠电极电池结构进行了比较。建立了微电池制造的所有工艺;特别是一种微流体电解质填充工艺,其允许在平面衬底上同时供应所有电池的电解质。电极质量的重现性足以达到充分的电极平衡。通过数字间电极实现了与传统面对面电极配置相似的电流能力。细胞成功循环;可以实现几个100周期。
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引用次数: 6
An investigation into the SiC anti-ablation membrane of MEMS microthrusters MEMS微推力器SiC抗烧蚀膜的研究
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984496
Jian Zhu, S. Wang
Silicon-based MEMS microthruster matrix has gained great attention as a micro-impulsion system in recent years, especially in application of attitude control of the nanosatellites. Although silicon serves well as the structural material for microthruster matrix in several aspects, its ability to resist ablation is rather weak. In this paper, SiC membrane is introduced to the surface of micro-chambers in order to enhance the ablation resistance of silicon-based MEMS microthrusters. A time-efficient four-step deposition process was carried out to prepare high-quality cavity-free SiC membrane. Microthrusters with SiC membrane coverage were tested under high-energy propellant experiment. The result shows that the SiC membrane can perfectly resist the ablation of microthrusters from nano-Al/CuO propellant.
近年来,硅基MEMS微推力器矩阵作为一种微脉冲系统受到了广泛的关注,特别是在纳米卫星姿态控制中的应用。硅作为微推力器基体的结构材料,虽然在许多方面表现良好,但其抗烧蚀能力较弱。为了提高硅基MEMS微推力器的抗烧蚀性能,本文在微腔表面引入了SiC膜。采用四步沉积工艺制备了高质量的无空腔SiC膜。在高能推进剂试验中,对SiC膜覆盖微推力器进行了试验。结果表明,SiC膜可以很好地抵抗纳米al /CuO推进剂对微推进器的烧蚀。
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引用次数: 0
Design optimization of a high frequency resonating micro-mirror with low dynamic deformation 低动态变形高频谐振微镜的设计优化
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984467
R. Farrugia, I. Grech, D. Camilleri, O. Casha, J. Micallef, E. Gatt
One of the main design limitations of resonant micro-mirrors intended for visual projection display applications is inertia-driven dynamic deformation. Micro-mirrors used for high frequency (20–30 kHz) laser beam scanning are typically operated at resonance in the region of their torsional modal frequency in order to achieve high scan angles. Although the optical resolution of the projected image is defined by the micro-mirror frequency, maximum scan angle and dimensions, significant dynamic deformation (> 1/10 of the incident wavelength) results in a loss in contrast between adjacent projected spots. This paper presents a structural design optimization scheme for a one directional resonant micro-mirror intended for laser projection with XGA optical resolution. The minimization of dynamic deformation is considered as one of the partial objectives together with other micro-mirror performance and reliability characteristics. The optimization scheme is performed using the response surface method and multi-objective genetic algorithms. This design process demonstrates the technical feasibility of including features, such as a gimbal structure, that improve the dynamic mirror flatness without compromising on the target scanning frequency, mode separation and maximum shear stress.
用于视觉投影显示应用的谐振微镜的主要设计限制之一是惯性驱动的动态变形。用于高频(20 - 30khz)激光束扫描的微反射镜通常在其扭转模态频率区域谐振以实现高扫描角。虽然投影图像的光学分辨率是由微镜频率、最大扫描角度和尺寸决定的,但显著的动态变形(>入射波长的1/10)会导致相邻投影点之间的对比度损失。提出了一种XGA光学分辨率激光投影用单向谐振微镜的结构优化设计方案。动态变形的最小化与微镜的其他性能和可靠性特性一起被认为是微镜的部分目标之一。采用响应面法和多目标遗传算法进行优化。该设计过程证明了在不影响目标扫描频率、模态分离和最大剪切应力的情况下,包括云台结构等特征提高动态反射镜平整度的技术可行性。
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引用次数: 1
Miniaturized gas chromatography for space exploration: A 50 years history 用于太空探索的小型气相色谱:50年的历史
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984486
C. Szopa, D. Coscia, M. Cabane, A. Buch
Since the beginning of the in situ exploration of alien worlds in the solar system, the characterization of the chemical composition in volatile materials and organic molecules is among the top priorities. Indeed, these compounds learn us about the origin and history of these world, their potential for habitability, and somehow the nature of resources they could provide, especially for future inhabited exploration. Among the chemical analytical techniques existing, gas chromatography was preferentially used as it is a robust instrumentation that can be used in many environments. Obviously, as the constraints of spacecraft accommodation require for light and small instruments, gas chromatographs have to meet these constraints and to be miniaturized compared to the laboratory set-up. This article tells the story of gas chromatography for space exploration and give information about its miniaturization.
自太阳系外星世界的原位探索开始以来,挥发性物质和有机分子的化学成分特征一直是重中之重。事实上,这些化合物让我们了解了这些世界的起源和历史,它们的可居住性,以及它们可以提供的资源的性质,特别是对未来的有人居住的探索。在现有的化学分析技术中,气相色谱作为一种可靠的仪器,可以在许多环境中使用,因此被优先使用。显然,由于航天器的住宿限制要求仪器轻巧,气相色谱仪必须满足这些限制,并且与实验室装置相比要小型化。本文讲述了气相色谱用于太空探索的故事,并给出了其小型化的信息。
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引用次数: 4
Fabrication of ultralarge single order diffraction grating with high surface flatness 高表面平整度的超大单级衍射光栅的制备
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984458
Yilei Hua, Changqing Xie, Nan Gao, Xiaoli Zhu, Hailiang Li
In this work, we present the fabrication process of a large (100mmx40mm) and thick (30mm) single order diffraction grating with a very flat reflecting surface. This grating is designed for a soft X-ray monochromator. Three single order diffraction gratings with different line densities were integrated on one silicon plate. The gratings are patterned on a 6.35mm thick substrate using direct e-beam writing and etched using high density plasma. Then the grating is glued on to a 23.7mm thick bulk silicon. The flatness of the surface of the gratings was well controlled and tested with an interferometer, the test results show that the peak-to-valley value of the surface is less than 60nm, which meet the requirement for a soft X-ray monochromator.
在这项工作中,我们提出了一个大(100mmx40mm)和厚(30mm)的单级衍射光栅的制造工艺,具有非常平坦的反射面。该光栅是为软x射线单色仪设计的。将三个线密度不同的单阶衍射光栅集成在一块硅板上。光栅图案在6.35毫米厚的基板上使用直接电子束写入和蚀刻使用高密度等离子体。然后将光栅粘在23.7毫米厚的大块硅上。对光栅表面的平整度进行了控制,并用干涉仪进行了测试,测试结果表明,光栅表面的峰谷值小于60nm,满足软x射线单色仪的要求。
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引用次数: 1
Recent advances in micro-gas chromatography — The opportunities and the challenges 微气相色谱的最新进展-机遇与挑战
Pub Date : 2017-05-01 DOI: 10.1109/DTIP.2017.7984485
I. Azzouz, F. Marty, T. Bourouina
This paper reviews the last two decades design, fabrication and characterization advances on high performance MEMS-based gas chromatography systems, the related architectures and their constitutive building blocks, which include preconcentrators, microvalves and related sample injection devices, micro-columns, and detectors. Micro-GCs hold potential for rapid analysis of volatile organic compounds (VOCs) within extremely compact and low-power platforms. This work presents portable GC analyzers both commercial and under development in research labs, with emphasis on their applications in various fields including air monitoring, industrial processes, and public health.
本文综述了近二十年来高性能mems气相色谱系统的设计、制造和表征进展,以及相关的体系结构和组成模块,包括预浓缩器、微阀和相关的进样装置、微柱和检测器。微型气相色谱具有在非常紧凑和低功耗的平台上快速分析挥发性有机化合物(VOCs)的潜力。这项工作介绍了便携式气相色谱分析仪,包括商业和正在开发的研究实验室,重点介绍了它们在各个领域的应用,包括空气监测,工业过程和公共卫生。
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引用次数: 5
期刊
2017 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP)
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