2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)最新文献

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A tunable liquid lens driven by a concentric annular electroactive actuator 由同心环形电致动器驱动的可调液体透镜
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765789
K. Wei, N. W. Domicone, Yi Zhao
{"title":"A tunable liquid lens driven by a concentric annular electroactive actuator","authors":"K. Wei, N. W. Domicone, Yi Zhao","doi":"10.1109/MEMSYS.2014.6765789","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765789","url":null,"abstract":"We present a membrane sealed fluidic lens that is hydrostatically connected to a concentric ring-shaped electroactive elastomer. Electrical activation deforms the ring-shaped elastomer, which induces fluid passage between the lens part and the actuation part of the membrane. This changes the lens's shape and therefore the focal length. The focal length ranges from 25.4 mm to 105.2 mm can be obtained with a voltage bias of 1.0 kV. Comparing to the existing fluidic lenses driven by electroactive polymers, this lens has a wider range of refractive power at a significantly lower actuation voltage. Our device finds applications in miniaturized optical components where adaptive focalization is paramount.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130405775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Out-of-plane micro triple-hot-wire anemometer based on Pyrex bubble for airflow sensing 基于热阻气泡的面外微型三热线风速计
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765756
Shuwei Liu, S. Pan, F. Xue, Nay Lin, Haobing Liu, J. Miao, L. Norford, H. B. Lim
{"title":"Out-of-plane micro triple-hot-wire anemometer based on Pyrex bubble for airflow sensing","authors":"Shuwei Liu, S. Pan, F. Xue, Nay Lin, Haobing Liu, J. Miao, L. Norford, H. B. Lim","doi":"10.1109/MEMSYS.2014.6765756","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765756","url":null,"abstract":"The paper reports novel design and fabrication of out-of-plane micro airflow sensors based on the hot-wire sensing principle, i.e. gas cooling of electrically-heated wires. Three micro Ti/Au/Cu hot-wire resistors have been fabricated on an out-of-plane Pyrex bubble with height of 300 μm. They are arranged 120 degrees apart on the sidewall of a bubble at height of 100 μm for airflow velocity and direction detection. Air velocity around the out-of-plane bubble structure has been investigated for square and circular package designs. The sensor with axisymmetric circular package has demonstrated the ability to detect velocity (<;10 m/s) and to determine flow direction with an error less than ±8° when the velocity is 10m/s. The sensitivity could be further improved in a new design with increased bubble height (1 mm) and elevated hot-wire resistor position (500 μm), according to the modeling results.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130485978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Nano-opto-electro-mechanical (NOEM) oscillator with controllable non-linear dynamics 具有可控非线性动力学的纳米光电(NOEM)振荡器
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765878
B. Dong, J. G. Huang, H. Cai, P. Kropelnicki, A. Randles, Y. D. Gu, A. Liu
{"title":"Nano-opto-electro-mechanical (NOEM) oscillator with controllable non-linear dynamics","authors":"B. Dong, J. G. Huang, H. Cai, P. Kropelnicki, A. Randles, Y. D. Gu, A. Liu","doi":"10.1109/MEMSYS.2014.6765878","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765878","url":null,"abstract":"In this paper, a nano-opto-electro-mechanical (NOEM) oscillator with controllable non-linear dynamics is demonstrated. An optical gradient force driven cantilever shows high non-linearity due to non-linear behavior of the optical force. The non-linear dynamics of the oscillator which utilizes opto-mechanical interaction is well studied and controlled by varying the optical signal, including the power and wavelength. The resonance frequency of the oscillator can be tuned by up to 50 KHz by changing the detuning condition of the opto-mechanical system. It has potential applications such as optical navigation sensors, actuators and optical switches.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117195272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ultrasound-assited micro-knife for cellular scale surgery 用于细胞规模手术的超声辅助微刀
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765783
Hwapyeong Jeong, Tao Li, Y. Gianchandani, Jaesung Park
{"title":"Ultrasound-assited micro-knife for cellular scale surgery","authors":"Hwapyeong Jeong, Tao Li, Y. Gianchandani, Jaesung Park","doi":"10.1109/MEMSYS.2014.6765783","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765783","url":null,"abstract":"An ultrasound-assisted micro-knife with a 500nm-thick silicon nitride blade is described. The sharp blade can be operated to cut soft cells without lysing. The operation conditions are optimized by finite element analysis and experimental evaluation. For validation of the cutting precision Si<sub>x</sub>N<sub>y</sub> blades without and with ultrasonic actuation are compared to a commercial scalpel. The commercial scalpel causes lysing of hepatocytes in a mono-layer; the Si<sub>x</sub>N<sub>y</sub> blade without ultrasonic actuation cut these cells with a ragged cut line; the Si<sub>x</sub>N<sub>y</sub> blade with 1 V<sub>pp</sub> and 70.1kHz ultrasonic actuation cuts these cleanly, as narrow as 2 μm. Due to the controlled ultrasonic mode shape, the high operating frequency, and low applied power (1V<sub>pp</sub>), the micro-knife performs highly precise dissection at the cellular scale without the need for high compressive force on the target cell. The Si<sub>x</sub>N<sub>y</sub> blade with harmonic actuation has potential applications as a tool for minimally invasive surgery.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134032681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A tunable optical IRIS based on electromagnetic actuation for a high-performance mini/micro camera 一种用于高性能迷你/微型相机的基于电磁驱动的可调谐光学IRIS
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765849
H. Seo, J. B. Chae, Sung Jin Hong, I. U. Shin, K. Rhee, J. Chang, S. Chung
{"title":"A tunable optical IRIS based on electromagnetic actuation for a high-performance mini/micro camera","authors":"H. Seo, J. B. Chae, Sung Jin Hong, I. U. Shin, K. Rhee, J. Chang, S. Chung","doi":"10.1109/MEMSYS.2014.6765849","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765849","url":null,"abstract":"This paper presents a tunable iris based on electromagnetic actuation for a tiny high-performance camera in mobile devices such as smart phones and pads. To investigate the effect of a magnetic field on a ferrofluid, the contact angle modification and transportation of a sessile ferrofluid droplet are tested using a neodymium magnet and electric coil. The variation of the contact angle of the ferrofluid droplet is 21.3° for the neodymium magnet and 18.1° for the electric coil based on electromagnetic induction. And the transportation of the ferrofluid droplet is also demonstrated using the neodymium magnet and electric coil. As the concept proof, the pretest of a tunable iris operated by electromagnetic actuation is conducted by using a hollow cylinder cell. In the initial state, the ferrofluid is in the relax state, so the cylinder cell shows the largest aperture (4.06 mm). When an electrical current is applied to an electric coil wound around the outside of the cylinder cell, the ferrofluid initially placed in the hydrophobic sidewall inside the cylinder cell is actuated and pulled to the center. The aperture under the current is modified from 4.06 mm at 0 A to 3.2 mm at 2 A. Finally, the envisioned tunable iris consisted of two connected circular microchannels is realized using a MEMS technology. The iris size is 9×9×2 mm3, and the variation of the aperture diameter is from 1.72 mm at 0 A to 1.09 mm at 2.6 A.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133698668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Thermopile infrared array sensor for human detector application 热电堆红外阵列传感器用于人体探测器
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765866
J. Tanaka, M. Shiozaki, F. Aita, T. Seki, M. Oba
{"title":"Thermopile infrared array sensor for human detector application","authors":"J. Tanaka, M. Shiozaki, F. Aita, T. Seki, M. Oba","doi":"10.1109/MEMSYS.2014.6765866","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765866","url":null,"abstract":"This paper reports the design of thermopile infrared sensor for human detector application. Sensitivity and response time of thermopile infrared sensor element are important for human detector application. In order to fulfill the specification, we developed S-shaped structure for thermopile infrared sensor element and fabrication process of chip scale vacuum package for mass production of the thermopile infrared sensors. As the result, 140V/W sensitivity and 17msec response time of the thermopile infrared sensor element are achieved. The thermopile infrared sensor is all fabricated by CMOS processes.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114021944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Simultaneous detection of linear and coriolis accelerations on a mode-matched MEMS gyroscope 模式匹配MEMS陀螺仪上线性和科里奥利加速度的同时检测
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765566
S. Sonmezoglu, H. D. Gavcar, K. Azgın, S. E. Alper, T. Akin
{"title":"Simultaneous detection of linear and coriolis accelerations on a mode-matched MEMS gyroscope","authors":"S. Sonmezoglu, H. D. Gavcar, K. Azgın, S. E. Alper, T. Akin","doi":"10.1109/MEMSYS.2014.6765566","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765566","url":null,"abstract":"This paper presents a novel “in operation acceleration sensing and compensation method” for a single-mass mode-matched MEMS gyroscope. In this method, the amplitudes of the sustained residual quadrature signals on the differential sense-mode electrodes are compared to measure the linear acceleration acting on the sense-axis of the gyroscope. By measuring the acceleration acting along the sense-axis, the g-sensitivity of the gyroscope output to these accelerations is mitigated without using a dedicated accelerometer. It has been experimentally demonstrated that the g-sensitivity of the studied gyroscope is substantially reduced from 1.08°/s/g to 0.04°/s/g, and the effect of the linear acceleration on the gyroscope output is highly-suppressed (by 96%) with the use of the compensation method proposed in this work.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122694602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Finfet with fully PH-responsive HFO2 as highly stable biochemical sensor 具有完全ph响应HFO2的Finfet作为高度稳定的生化传感器
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765828
S. Rigante, M. Wipf, A. Bazigos, K. Bedner, D. Bouvet, A. Ionescu
{"title":"Finfet with fully PH-responsive HFO2 as highly stable biochemical sensor","authors":"S. Rigante, M. Wipf, A. Bazigos, K. Bedner, D. Bouvet, A. Ionescu","doi":"10.1109/MEMSYS.2014.6765828","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765828","url":null,"abstract":"In this work, highly scaled FinFETs (Fin Field Effect Transistors) are proposed as both sensing and circuit units of a lab-on-a-chip platform. The FinFET-based sensors with an HfO<sub>2</sub> gate oxide demonstrate full pH-response with ΔV<sub>th</sub> ≈ 56 mV/pH. High readout sensitivity S<sub>out</sub> = ΔI<sub>d</sub>/I<sub>d</sub> ≈ 43% is achieved in combination with excellent device electronic properties, i.e. SS = 77 mV/dec and I<sub>on</sub>/I<sub>off</sub> =1.5×10<sup>6</sup>. High long-term stability is proven over 4.5 days with a drift in time limited at 0.14 mV/h.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128538210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
100K Q-factor toroidal ring gyroscope implemented in wafer-level epitaxial silicon encapsulation process 100K q因子环形陀螺仪在晶圆级外延硅封装工艺中实现
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765564
D. Senkal, Sina Askari, M. Ahamed, E. Ng, V. Hong, Yushi Yang, C. Ahn, Thomas W. Kenny, A. Shkel
{"title":"100K Q-factor toroidal ring gyroscope implemented in wafer-level epitaxial silicon encapsulation process","authors":"D. Senkal, Sina Askari, M. Ahamed, E. Ng, V. Hong, Yushi Yang, C. Ahn, Thomas W. Kenny, A. Shkel","doi":"10.1109/MEMSYS.2014.6765564","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765564","url":null,"abstract":"This paper reports a new type of degenerate mode gyroscope with measured Q-factor of > 100,000 on both modes at a compact size of 1760 μm diameter. The toroidal ring gyroscope consists of an outer anchor ring, concentric rings nested inside the anchor ring and an electrode assembly at the inner core. Current implementation uses n = 3 wineglass mode, which is inherently robust to fabrication asymmetries. Devices were fabricated using high-temperature, ultra-clean epitaxial silicon encapsulation (EpiSeal) process. Over the 4 devices tested, lowest as fabricated frequency split was found to be 8.5 Hz (122 ppm) with a mean of 21 Hz (Δf/f = 300 ppm). Further electrostatic tuning brought the frequency split below 100 mHz (<; 2 ppm). Whole angle mechanization and pattern angle was demonstrated using a high speed DSP control system. Characterization of the gyro performance using force-rebalance mechanization revealed ARW of 0.047°/√hr and an in-run bias stability of 0.65 deg/hr. Due to the high Q-factor and robust support structure, the device can potentially be instrumented in whole angle mechanization for applications which require high rate sensitivity and robustness to g-forces.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"125 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128700164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 64
Annealing effects on flexible multi-layered parylene-based sensors 柔性多层聚苯乙烯传感器的退火效应
2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2014-03-13 DOI: 10.1109/MEMSYS.2014.6765768
Brian J. Kim, E. Washabaugh, E. Meng
{"title":"Annealing effects on flexible multi-layered parylene-based sensors","authors":"Brian J. Kim, E. Washabaugh, E. Meng","doi":"10.1109/MEMSYS.2014.6765768","DOIUrl":"https://doi.org/10.1109/MEMSYS.2014.6765768","url":null,"abstract":"To mitigate long term, soaking-induced delamination failure of multi-layered Parylene C devices, a post-process annealing step can be employed to increase adhesion between the Parylene layers. However, it has been shown that annealing of Parylene thin films can alter the bulk properties of the polymer, and thus impact final device performance. To elucidate these effects, the mechanical and electrochemical properties, and sensing performance of untreated and annealed Parylene C-platinum electrochemical impedance-based force sensors were compared. Annealing reduced the height (~3%) and increased the stiffness of the Parylene C sensing channel structure (~1.6x), affecting the sensor's mechanical response. Furthermore, the electrode surface was smoothed as built-in residual stresses were removed during annealing, altering the sensor's electrochemical properties. Together, these phenomena resulted in a 24% reduction in sensor sensitivity. These results indicate that heat-based effects cannot be ignored for Parylene-metal device systems, including neural microelectrode implants, and that mechanical and electrochemical properties and performance must be determined after heat treatment, such as annealing and sterilization.","PeriodicalId":312056,"journal":{"name":"2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116725358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
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