نتایج جستجو برای: mems ionization gauge

تعداد نتایج: 99141  

Journal: :Physical review 2023

We theoretically investigate a practically realizable Floquet topological superconductor model based on one-dimensional Rashba nanowire and proximity-induced $s$-wave superconductivity in the presence of Zeeman field. The driven system hosts regular 0-Majorana end modes anomalous $\ensuremath{\pi}$-Majorana (MEMs). By tuning chemical potential frequency drive, we illustrate generation multiple ...

Journal: :Defence Science Journal 2022

As a result of the unpredictable nature extreme environments (including temperature, humidity, impact, and other factors), micro-electro-mechanical systems (MEMS) solid-state fuze control modules have an urgent requirement for MEMS switch (MEMS-S3). In particular, this must remain stable without any energy input after state transition (i.e., it be bistable). paper, bistable (MEMS-bS3) is design...

2008
Yaping Liang C. W. Domier

MEMS varactors are one of the important passive MEMS devices. Their applications include use in VCOs, tunable impedance matching networks, tunable filters, phase shifters, and true time delay lines. The shunt capacitive structure has been employed in most of the conventional MEMS varactor designs because of its simplicity. However, the capacitance ratio of this conventional shunt capacitive MEM...

2014
Christine Y. Wong

ABB Automation is starting to experiment with Microelectrical Mechanical Systems (MEMS) as an enabling technology for their products. If ABB's implementation of MEMS is found successful, it will be able to create breakhrough products and services that will revolutionize the market in ABB's industrial sensors, instrumentation and analytical areas. The thesis begins with a description of ABB as a...

2004
Piet De Moor Kris Baert Eric Beyne Ingrid De Wolf Harrie A.C. Tilmans Chris Van Hoof

Zero-level packaging technology ensures dicing and handling compatibility of the MEMS device along with low cost by encapsulating the MEMS components using wafer level processing. It is also essential for providing the MEMS with a controlled ambient in a cost-effective way. In order to be compatible with a broad range of MEMS processes, IMEC developed sealing methods with a low temperature budg...

Journal: :journal of modern processes in manufacturing and production 2013
amin rouhani esfahani mojtaba kolahdouzan mehran moradi

micro-electro-mechanical systems (mems) are combination of electrical and mechanical components in micron dimensions. in recent years, holding, actuating methods and handling of mems components such asmicrogripper, microsensors and etc. have been deeply studied. microgrippers for handling, positioning andassembling of micro components are very useful so that for clamping need actuation created ...

ژورنال: :مهندسی مکانیک مدرس 0
حسن عبداللهی عضو هیات علمی دانشگاه هوائی شهید ستاری - مدیر پژوهش دانشکده برق

از آنجائیکه کانتیلیور ها پایه و اساس بیشتر قطعات مبتنی بر ساختارهای mems می باشند، در این مقاله فرآیند ساخت کانتیلیور با فناوری میکرو ماشین کاری حجمی بیان شده است و از آن فرآیند برای ساخت آرایه ای از میکروکانتیلیورهای تک ماده ای از جنس sio2 استفاده شده است. نتایج حاصل از این مقاله می تواند پایه و اساس طراحی و ساخت حسگرهایی باشد که بر پایه کانتیلیور از جنس sio2 استوار است. طراحی فرآیند ساخت کانت...

2005
Gerold Schröpfer Dave King Chris Kennedy Mark McNie

We discuss the co-design of integrated MEMS accelerometer array designed and fabricated onto the input of a CMOS charge amplifier. The focus of this paper is on two parts of the design flow: Firstly, advanced 3D process emulation and secondly, circuit simulation. We use a "voxel" (volumetric pixel) based process emulation tool that takes 2D masks and a description of the fabrication process, to...

2005
Erik Novak Der-Shen Wan Paul Unruh Michael Schurig

− Accurate measurements of MEMS surfaces, geometries and motions are crucial to achieving the desired performance of the devices. The wide variety of MEMS devices in development and production requires very flexible metrology for single-platform characterization. In addition to having greatly varying geometries, devices must also be characterized statically and under actuation. White-light inte...

2005
Naser El-Sheimy

This research aims at enhancing the accuracy of land vehicular navigation systems by integrating GPS and Micro-Electro-Mechanical-System (MEMS) based inertial measurement units (IMU). This comprises improving the MEMS-based inertial output signals as well as investigating the limitations of a conventional Kalman Filtering (KF) solution for MEMS-IMU/GPS integration. These limitations are due to ...

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