نتایج جستجو برای: mems ionization gauge

تعداد نتایج: 99141  

2010
Liudi Jiang Rebecca Cheung R. Cheung

Due to its desirable material properties, Silicon Carbide (SiC) has become an alternative material to replace Si for Microelectromechanical Systems (MEMS) applications in harsh environments. To promote SiC MEMS development towards future cost-effective products, main technology areas in material deposition and processes have attracted significant interest. The developments in these areas have c...

2011
Songbin Gong Scott Barker

This paper presents the design of a V-band switched-line phase shifter using SP4T RF-MEMS switches. Sonnet simulations are used to achieve accurate circuit models of both the RF-MEMS switches as well as CPW bends within the phase shifter. The V-band phase shifter utilizes two SP4T RF-MEMS switches to perform the delay line switching. The RF performance of the SP4T MEMS switch is optimized to ad...

2013
S. Madhava Reddy Anudeep Kumar

MEMS is the acronym for Micro Electro Mechanical Systems. Micromachining has potential applications for large area image sensors and displays, but conventional MEMS technology, based on crystalline silicon wafers cannot be used. Instead, large area devices use deposited films on glass substrates. This presents many challenges for MEMS, both as regards materials for micro-machined structures and...

2009
EUNJI LEE

MEMS-based storage is one of the leading candidates as tomorrow’s storage medium due to its salient characteristics such as high-parallelism, high density, and low-power consumption. Because physical structures of MEMS-based storage is different from those of hard disks, new software management techniques for MEMS-based storage are needed. Specifically, MEMS-based storage has thousands of paral...

پایان نامه :وزارت علوم، تحقیقات و فناوری - موسسه آموزش عالی غیرانتفاعی و غیردولتی سجاد مشهد - دانشکده برق و الکترونیک 1392

قطعات mems بدلیل مزایایی از قبیل توان تلفاتی کم، وزن و قیمت کمی که دارند بسیار مورد توجه قرار گرفته اند و امروزه در سیستم های rf فرکانس بالا بسیار مورد استفاده قرار می گیرند. یکی از مهمترین المان های که قطعات mems دارند سوئیچ ها می باشند که دارای قابلیت مجتمع سازی هستند. سوئیچ ها در مقایسه با قطعات نیمه هادی از توان مصرفی خیلی پایین، فرکانس قطع بالا، تلفات داخلی کمتر و همچنین ایزولاسیون بالایی ...

Journal: :iranian journal of science and technology (sciences) 2009
h. sabzyan

time-dependent schrödinger equation for a 1-d model of hydrogen molecular ion h2+ in intenselaser field linearly polarized along the molecular axis is solved. ionization rates are calculated for differentinitial states. the evolution of electronic wavefunction at fixed inter-nuclear separations are simulated andanalyzed. the results obtained for the ground state of this 1-d model of h2+ show ap...

Journal: :CoRR 2006
M.-K. El Khatib Arnaud Pothier Pierre Blondy

The expending development of wireless communication requires strong demands for components with improved capabilities. RF MEMS devices offer a variable alternative to conventional communication components because they consume less DC power, have lower losses, higher linearity and higher Q factor. However, the commercialization of RF MEMS devices is hindered by technological issues such as their...

2004
Steven W. Schlosser Gregory R. Ganger

MEMS-based storage devices are a new technology that is significantly different from both disk drives and semiconductor memories. These differences motivate the question of whether they need new abstractions to be utilized by systems, or if existing abstractions will work well. This paper addresses this question by examining the fundamental reasons that the abstraction works for existing system...

2006
Corie L. Cobb

Although Micro-Electro-Mechanical Systems (MEMS) are forming the basis for a rapidly growing industry and fields of research, many MEMS designers still rely on backof-the-envelope calculations due to a lack of efficient computer-aided design (CAD) tools that can assist with the initial stages of design exploration. This paper introduces case-based reasoning (CBR) techniques to the design of MEM...

Journal: :Nano letters 2008
Jun Zhou Yudong Gu Peng Fei Wenjie Mai Yifan Gao Rusen Yang Gang Bao Zhong Lin Wang

Strain sensors based on individual ZnO piezoelectric fine-wires (PFWs; nanowires, microwires) have been fabricated by a simple, reliable, and cost-effective technique. The electromechanical sensor device consists of a single electrically connected PFW that is placed on the outer surface of a flexible polystyrene (PS) substrate and bonded at its two ends. The entire device is fully packaged by a...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید