نتایج جستجو برای: mems ionization gauge

تعداد نتایج: 99141  

2002
Joanne Wellman Adalberto Garcia

1.0 INTRODUCTION Solid-state RF devices are currently utilized in a wide array of application areas, including satellite communications systems, wireless communications systems, automotive radars, and defense applications. Currently, PIN diode or Field Effect Transistor (FET)-based switches are utilized for their high switching speeds, high power handling, low drive voltage, low cost, and techn...

Journal: :Micromachines 2016
Hongwei Qu

This paper reviews CMOS (complementary metal-oxide-semiconductor) MEMS (micro-electro-mechanical systems) fabrication technologies and enabled micro devices of various sensors and actuators. The technologies are classified based on the sequence of the fabrication of CMOS circuitry and MEMS elements, while SOI (silicon-on-insulator) CMOS MEMS are introduced separately. Introduction of associated...

Aydin Nabovati, Hooman Nabovati, Hosseyn Keshmir, Khalil Mafinezhad,

This paper presents a comprehensive case study on electro-mechanical analysis of MEMS[1] variable capacitors. Using the fundamental mechanical and electrical equations, static and dynamic behaviors of the device are studied. The analysis is done for three different modes, namely: dc (static mode), small signal ac and large signal regime. A complete set of equations defining dynamic behavior of ...

2016
Ken Saito Yoshifumi Sekine

Hexapod locomotive Micro-Electro Mechanical Systems (MEMS) microrobot with Pulse-type Hardware Neural Networks (P-HNN) locomotion controlling system is presented in this chapter. MEMS microrobot is less than 5 mm width, length, and height in size. MEMS microrobot is made from a silicon wafer fabricated by micro fabrication technology to realize the small size mechanical components. The mechanic...

2002
H. D. Espinosa B. Peng K.-H. Kim B. C. Prorok N. Moldovan X. C. Xiao J. E. Gerbi J. Birrell O. Auciello J. A. Carlisle D. M. Gruen D. C. Mancini

Microcantilever deflection and the membrane deflection experiment (MDE) were used to examine the elastic and fracture properties of ultrananocrystalline diamond (UNCD) thin films in relation to their application to microelectromechanical systems (MEMS). Freestanding microcantilevers and membranes were fabricated using standard MEMS fabrication techniques adapted to our UNCD film technology. Ela...

Journal: :Physical review 2023

Relativistic strong-field ionization of hydrogen-like atoms or ions in a constant crossed electromagnetic field is studied. The transition amplitude formulated within the approximation G\"oppert-Mayer gauge, with initial and final electron states being described by corresponding Dirac-Coulomb Dirac-Volkov wave functions, respectively. Coulomb corrections to motion during tunneling are taken int...

2009
Thomas Bifano

The research product ...............................................................................................................................1
 Deformable mirrors: current state-of-the-art...........................................................................................2
 AO and MEMS DMs: relevance to astronomy and space science......................................................

2015

S.Z. cantilevers are made using a simple one-mask fabrication process with.characterization of a cantilever-type MEMS chemical sensor for detection of chemicals. MEMS has been with the advancement of cantilever-type sensors.sensor. The mechanical structure is a cantilever, having its own resonant frequency. MEMS cantilevers can be as thin as a few nanometers with lengths.Cantilever-based Sensor...

2005
Xuan F. Zha Ram D. Sriram Satyandra K. Gupta

Corresponding author, Email: [email protected] ABSTRACT In this paper, we present a preliminary research effort towards an effective computer support environment for the design and development of micro-electro-mechanical systems (MEMS). We first identify the characteristics of MEMS product design and development processes and examine the state-of-the-art of MEMS Computer-aided Design (CAD) and s...

Journal: :IEEE Trans. Education 2001
Liwei Lin

Curriculum development in microelectromechanical systems (MEMS) in the Mechanical Engineering and Applied Mechanics (MEAM) Department at the University of Michigan is presented. A course curriculum structure that integrates both mechanical and electrical engineering courses is proposed for mechanical engineering students. The proposed curriculum starts from undergraduate study and finishes at t...

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