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Proceedings IEEE Thirteenth Annual International Conference on Micro Electro Mechanical Systems (Cat. No.00CH36308)最新文献

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TOPSPOT-a new method for the fabrication of microarrays 一种制造微阵列的新方法
J. Ducrée, H. Gruhler, N. Hey, M. Muller, S. Békési, M. Freygang, H. Sandmaiser, R. Zengerle
This article outlines the new non-contact TOPSPOT method for printing microarrays in a highly parallelized fashion. It is based on a micromachined print head incorporating a central microarray of presently up to 96 vertical nozzles on the output side. Droplets featuring volumes down to 1nl aligned in a 500 /spl mu/m grid are simultaneously ejected by applying a steep air pressure ramp to the open upper side of the liquid. Each of these nozzles is connected to a distinct fluidic reservoir constituting the interface to the macro world. To allow an automated replenishing of the chip, the alignment of the reservoirs is amenable for liquid handling via standard pipetting robots. Depending on the design of the print head, a maximum of 20 /spl mu/l can be stored thus allowing one to dispend about 20.000 droplets of equal quality in a row. Besides its suitability for a robust biochip manufacturing facility in the laboratory, the print head is also well-integrable in a high-throughput production plant. These versions are scheduled to become commercially available in 2000.
本文概述了一种新的非接触式TOPSPOT方法,用于以高度并行化的方式打印微阵列。它是基于一个微机械打印头结合中央微阵列目前多达96个垂直喷嘴在输出侧。液滴的体积低至1nl,排列在500 /spl / mu/m的网格中,同时通过在液体的开放上方施加陡峭的空气压力坡道喷射出来。这些喷嘴中的每一个都连接到一个不同的储液器,构成了与宏观世界的界面。为了实现芯片的自动补充,储层的对齐可以通过标准移液机器人进行液体处理。根据打印头的设计,最多可存储20 μ l / μ l,从而允许连续分发约20,000个相同质量的液滴。除了适合实验室中强大的生物芯片制造设施外,打印头也可以很好地集成到高通量生产工厂中。这些版本计划在2000年投入商用。
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引用次数: 30
Ball semiconductor technology and its application to MEMS 球半导体技术及其在微机电系统中的应用
N. Takeda
This paper describes Ball semiconductor technology that realizes integrated circuits and other devices on 1-milimeter sphere. Single crystallization, no-contact processing, spherical lithography, 3D VLSI design and VLSI by clustering are five key enabling technologies of the Ball semiconductor. Three major product categories of the Ball, integrated circuits, RF applications and MEMS (Micro Electro Mechanical System), are described here. Especially electro-statically levitated 3-axis accelerometer is mentioned as an application of Ball semiconductor technology to MEMS.
本文介绍了在1毫米球体上实现集成电路和其他器件的球半导体技术。单晶化、无接触加工、球面光刻、3D VLSI设计和聚类VLSI是Ball半导体的五大关键使能技术。球的三个主要产品类别,集成电路,射频应用和MEMS(微电子机械系统),在这里描述。特别介绍了球半导体技术在微机电系统中的应用——静电悬浮三轴加速度计。
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引用次数: 26
Intelligent CMOS sensors 智能CMOS传感器
C. Hierold
CMOS including micromechanics using polysilicon structures as functional layers is a promising technology for production of Intelligent CMOS Sensors. Its cost and performance advantages allow to address volume markets like monolithic integrated sensors for automotive application. Using modern silicon processes and their potential for large scale integration, new functions like on-chip calibration and diagnosis are possible. Furthermore, it offers direct digital output signals which is ideal for data processing in microcontrollers. In this technology, the non electric functional blocks (e.g. membranes for pressure sensors) can be miniaturized in a way so that they do not impose a chip real-estate penalty. This immediately reduces the production cost immensely. We will demonstrate the superiority of CMOS as technology for integrated sensors by two examples: An integrated pressure sensor and an integrated fingertip sensor system.
利用多晶硅结构作为功能层的微力学技术是生产智能CMOS传感器的一种有前途的技术。其成本和性能优势使其能够满足汽车应用的单片集成传感器等批量市场。利用现代硅工艺及其大规模集成的潜力,芯片上校准和诊断等新功能成为可能。此外,它提供了直接的数字输出信号,这是理想的数据处理在微控制器。在这项技术中,非电功能块(例如压力传感器的膜)可以小型化,这样它们就不会造成芯片空间的损失。这立即大大降低了生产成本。我们将通过两个例子来展示CMOS作为集成传感器技术的优势:集成压力传感器和集成指尖传感器系统。
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引用次数: 37
Deep reactive ion etching of Pyrex glass 热玻璃的深度反应离子蚀刻
X. Li, T. Abe, M. Esashi
We have developed a deep reactive ion etching of Pyrex glass in SF/sub 6/ plasma. High etch rate (/spl sim/0.6 /spl mu/m/min) and smooth surface (Ra-4 nm) were achieved at low pressure (0.2 Pa) and high self-bias (-390 V). This result indicates energetic ions for physical sputtering and for enhancing chemical reactions are required to etch materials which produce nonvolatile reaction products. Vertical etch profile (base angle /spl sim/88/spl deg/), high aspect ratio (>10) and through-out etching of Pyrex glass (200 /spl mu/m in thickness) were achieved when the mask opening is narrower than 20 /spl mu/m. Relatively low selectivity to the mask material due to the energetic ion is overcame using thick and vertical electroplated Ni film as a mask. We also find out the base angle of the etch profile depends on the mask profile and the opening width.
我们开发了一种在SF/sub - 6/等离子体中深度反应离子刻蚀耐热玻璃的方法。在低压(0.2 Pa)和高自偏置(-390 V)条件下,获得了高的蚀刻速率(/spl sim/0.6 /spl mu/m/min)和光滑的表面(Ra-4 nm)。这一结果表明,为了产生非挥发性反应产物,需要物理溅射和增强化学反应的高能离子来蚀刻材料。当掩膜开口小于20 /spl mu/m时,可以实现垂直蚀刻轮廓(基角/spl sim/88/spl°/)、高纵横比(>10)和Pyrex玻璃的全蚀刻(厚度200 /spl mu/m)。利用厚的、垂直的电镀镍薄膜作为掩膜,克服了由于高能离子对掩膜材料相对较低的选择性。我们还发现蚀刻轮廓的底角取决于掩模轮廓和开口宽度。
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引用次数: 58
Phase change in microchannel heat sink under forced convection boiling 强制对流沸腾条件下微通道散热片的相变
Linan Jiang, M. Wong, Y. Zohar
A microchannel heat sink system, consisting of parallel microchannels, distributed temperature micro-sensors and a local heater, has been fabricated and characterized. V-grooves with hydraulic diameter of either 40 /spl mu/m or 80 /spl mu/m were formed by bulk silicon etching. The heater and temperature microsensor array were fabricated using surface micromachining. Microchannels were realized by bonding a glass wafer to the silicon substrate, resulting in a transparent cover for flow visualization. Phase change during the boiling process was studied under forced convection conditions, where DI water was used as the working fluid. No boiling plateau, associated with latent heat, has been observed in the boiling curves of microchannel heat sinks. Flow visualization was carried out to understand the boiling mechanism in such a system. Three phase-change modes were observed depending on the input power level. Local nucleation boiling within the microchannels occurred at low power level. At moderate levels, large bubbles developed at the inlet/outlet regions, and the upstream bubbles were forced through the channels and out of the system. At higher input power levels, a stable annular flow mode was observed, where a thin liquid film coated each channel wall until critical heat flux conditions developed with a dryout of the system.
制备了一种由并联微通道、分布式温度微传感器和局部加热器组成的微通道散热系统,并对其进行了表征。采用体硅刻蚀法形成液压直径为40 /spl mu/m或80 /spl mu/m的v型槽。采用表面微加工技术制备了加热器和温度微传感器阵列。微通道是通过将玻璃晶片粘合到硅衬底上实现的,从而形成一个透明的覆盖层,用于流动可视化。在强制对流条件下,以去离子水为工质,研究了沸腾过程中的相变。在微通道散热器的沸腾曲线中没有观察到与潜热有关的沸腾平台。通过流动可视化来了解该体系的沸腾机理。根据输入功率的不同,观察到三种相变模式。在低功率下,微通道内发生局部成核沸腾。在中等水平时,大气泡在进口/出口区域形成,上游气泡被迫通过通道并离开系统。在较高的输入功率水平下,观察到稳定的环空流动模式,其中薄液体膜覆盖在每个通道壁上,直到系统干燥达到临界热流条件。
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引用次数: 21
Development of chain-type micromachine for inspection of outer tube surfaces (basic performance of the 1st prototype) 链式外管表面检测微机的研制(1台样机基本性能)
M. Takeda, K. Namura, K. Nakamura, N. Shibaike, T. Haga, H. Takada
Using micromachine technology, we have developed the first prototype of a multiple distributed micromachine system, in which a micromachine can be driven in both the horizontal and vertical directions and automatically connect to and disconnect from adjacent micromachines. The developed micromachine is the world's smallest machine (width: 9 mm, length: 5 mm, height: 6.5 mm, weight: 0.42 g) that can travel in both the horizontal and vertical directions. This paper gives an overview of the prototype and its travel and connection/disconnection performance. The following conclusions were obtained: (1) The developed magnetic wheel-driven micromachine is able to travel both horizontally and vertically. (2) Automatic connection and disconnection are realized by using newly developed microconnectors.
利用微机技术,我们开发了多分布式微机系统的第一个原型,其中微机可以在水平和垂直方向上驱动,并自动连接和断开相邻的微机。所开发的微型机器是世界上最小的机器(宽:9毫米,长:5毫米,高:6.5毫米,重:0.42克),可以在水平和垂直方向上移动。本文概述了原型机及其行程和连接/断开性能。研究结果表明:(1)所研制的磁轮驱动微机械既能实现水平移动,又能实现垂直移动。(2)采用新开发的微连接器实现自动连接和断开。
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引用次数: 14
Micromachined rubber O-ring micro-fluidic couplers 微加工橡胶o型圈微流体耦合器
T. Yao, Sangwook Lee, W. Fang, Y. Tai
In this paper, we present a novel type of a "quick-connect" for micro-fluidic devices realized by a simple silicone-rubber O-ring MEMS coupler. As shown in this work, the proposed O-ring couplers are easy to fabricate and utilize, reusable, can withstand high pressure (>60 psi), and provide good seals. In the paper, results from both the leak rate test and pull-out test are presented, demonstrating the functionality of the O-ring couplers.
在本文中,我们提出了一种新型的微流体器件的“快速连接”,它是由一个简单的硅橡胶o型环MEMS耦合器实现的。正如这项工作所示,所提出的o型环耦合器易于制造和利用,可重复使用,可承受高压(bbb60 psi),并提供良好的密封性。本文给出了泄漏率测试和拔出测试的结果,证明了o型环耦合器的功能。
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引用次数: 61
Microfabrication technology for polycaprolactone, a biodegradable polymer 生物可降解聚合物聚己内酯的微加工技术
D. Armani, Chang Liu
In this paper, we report the development of micromachining techniques for a biodegradable polymer for the first time. By virtue of their ability to naturally degrade in tissues, biodegradable polymers hold immense promise as new materials for implantable biomedical microdevices. This work focuses on establishment of microfabrication processes for biodegradable microstructures and microdevices. Three unique fabrication processes have been established: (1) micro-molding process to form 3D microstructures in polycaprolactone (PCL) via a silicon micromachined mold; (2) a method of transferring metal patterns to surfaces of PCL substrates; (3) techniques for sealing both dry and liquid-filled PCL micro-cavities with a metal thin film (e.g. gold). Chemical compatibility of PCL with common micromachining chemicals have been investigated.
本文首次报道了生物可降解聚合物微加工技术的发展。由于其在组织中自然降解的能力,可生物降解聚合物作为植入式生物医学微设备的新材料具有巨大的前景。这项工作的重点是建立可生物降解的微结构和微器件的微加工工艺。建立了三种独特的制造工艺:(1)通过硅微机械模具形成聚己内酯(PCL)的三维微结构的微成型工艺;(2)一种将金属图案转移到PCL基板表面的方法;(3)用金属薄膜(如金)密封干燥和充满液体的PCL微腔的技术。研究了PCL与常用微加工化学品的化学相容性。
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引用次数: 128
Direct writing for three-dimensional microfabrication using synchrotron radiation etching 用同步辐射蚀刻直接写入三维微加工
T. Katoh, N. Nishi, M. Fukagawa, H. Ueno, S. Sugiyama
This paper presents rapid three-dimensional microfabrication technologies for PTFE by direct writing with the TIEGA process, a LIGA-like process which replaces hard X-ray lithography with synchrotron radiation (SR) direct photo-etching. The etching rates of this process are of the order of 6-100 /spl mu/m/min, depending on the photon flux of the SR light. An X-ray lathe has been modified into an SR etching lathe to form cylindrical, helical, pyramidal, ellipsoidal, and other nonplanar objects. A metallic wire covered with a PTFE sheet is rotated and/or moved while being irradiated with SR through a mask. Moreover, direct writing without using any masks has been developed, by combining a scanning stage with a high degree of freedom under an He atmosphere, for creating any microstructure. The capabilities of these technologies and initial fabrication results are described here.
本文介绍了用TIEGA工艺直接刻写PTFE的快速三维微加工技术,TIEGA工艺是一种类似liga的工艺,用同步辐射(SR)直接光蚀刻代替硬x射线光刻。该工艺的蚀刻速率约为6-100 /spl mu/m/min,取决于SR光的光子通量。一个x射线车床已被修改成一个SR蚀刻车床形成圆柱,螺旋,锥体,椭球体,和其他非平面的对象。在通过掩膜用SR照射时,旋转和/或移动覆盖有聚四氟乙烯片的金属丝。此外,通过在He气氛下结合具有高度自由度的扫描阶段,开发了不使用任何掩模的直接书写,以创建任何微观结构。本文描述了这些技术的性能和初步制造结果。
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引用次数: 59
Static friction in elastic adhesive MEMS contacts, models and experiment 弹性黏着MEMS接触的静摩擦,模型和实验
N. Tas, C. Gui, M. Elwenspoek
Static friction in shearing mode can be expressed as the product of the shear strength of the interface and the real contact area. The influence of roughness on friction in elastic adhesive contact is analyzed. Special attention is paid to low loading conditions, in which the number of contact points is small. The models are used to analyze a friction experiment in a MEMS friction meter.
剪切模式下的静摩擦可以表示为界面抗剪强度与实际接触面积的乘积。分析了弹性粘接接触中粗糙度对摩擦的影响。特别要注意的是低负荷条件,在这种情况下接触点的数量很少。利用该模型对MEMS摩擦计中的摩擦实验进行了分析。
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引用次数: 20
期刊
Proceedings IEEE Thirteenth Annual International Conference on Micro Electro Mechanical Systems (Cat. No.00CH36308)
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