Thin‐film permanent magnet requirements for magnetic devices in MMIC (invited) (abstract)

1987 ◽  
Vol 61 (8) ◽  
pp. 4111-4111 ◽  
Author(s):  
D. D. Stancil
Keyword(s):  
Thin Film ◽  
Permanent Magnet ◽  
Magnetic Devices

Corrosion of Electronic and Magnetic Devices and Materials

1996 ◽  
Vol 451 ◽  
Author(s):  
Gerald S. Frankel
Keyword(s):  
Thin Film ◽  
Failure Modes ◽  
Galvanic Corrosion ◽  
Potential Drop ◽  
Magnetic Devices ◽  
Disk Structure ◽  
Magnetic Layers ◽  
Ohmic Potential Drop ◽  
Corrosion Problem ◽  
Corrosion Susceptibility

ABSTRACTCorrosion of thin film structures commonly used in electronic and magnetic devices is discussed. Typical failure modes are presented, and galvanic corrosion is discussed in some detail since it is one common problem with such devices. A graphical explanation for the determination of the ohmic potential drop during galvanic corrosion is presented. The corrosion problem of thin film disks is shown to have changed during the past ten years owing to changes in disk structure. The corrosion susceptibility of two antiferromagnetic alloys used for exchange coupling to soft magnetic layers is discussed.

Congratulations! The Best Paper Award 2014

2014 ◽  
Vol 8 (5) ◽  
pp. 623-623
Author(s):  
Editorial Office
Keyword(s):  
Thin Film ◽  
Permanent Magnet ◽  
Selection Process ◽  
Linear Motor ◽  
Paper Award ◽  
Award Winner ◽  
Dlc Coating ◽  
Future Success ◽  
Automation Technology

The fifth Best Paper Award 2014 ceremony was held in Kasumigaseki, Tokyo, Japan, on August 1, 2014, attended by the winner and IJAT committee members who took part in the selection process. The Best Paper was severely selected from among 84 papers published in Vol.7 (2013). The Best Paper Award winner was given a certificate with a nearly US$1,000 honorarium. We congratulate the winner and sincerely wish for his future success.   Title: Positioning Characteristics of a MEMS Linear Motor Utilizing a Thin Film Permanent Magnet and DLC Coating Authors: Ryogen Fujiwara, Tadahiko Shinshi, and Minoru Uehara Int. J. of Automation Technology Vol.7 No.2, March, 2013

scholarly journals Multi-pole Magnetization of Thin Film Neodymium Permanent Magnet and Fabrication of a MEMS Linear Motor Using the Magnetized Magnet

2013 ◽  
Vol 79 (8) ◽  
pp. 773-778 ◽  
Author(s):  
Ryogen FUJIWARA ◽  
Masato ISHIBASHI ◽  
Tadahiko SHINSHI ◽  
Minoru UEHARA ◽  
Michitaka HORI ◽  
...  
Keyword(s):  
Thin Film ◽  
Permanent Magnet ◽  
Linear Motor

Design and Analysis of a Thin Film Permanent Magnet Actuated Micro Pump

2013 ◽  
Vol 7 (2) ◽  
pp. 196-204 ◽  
Author(s):  
Chao Zhi ◽  
◽  
Tadahiko Shinshi ◽  
Minoru Uehara ◽  
Keyword(s):  
Thin Film ◽  
Permanent Magnet ◽  
Flow Rate ◽  
Maximum Flow ◽  
High Flow ◽  
Deformation Analysis ◽  
Maximum Pressure ◽  
Large Deformation Analysis ◽  
Micro Pump ◽  
Displacement Measurements

In this paper we present the design, analysis and an experimental evaluation of a micro pump utilizing a 20 µm thick, 3 mm diameter Thin Film Permanent Magnet (TFPM). The pump includes an electromagnet that uses a magnetic closed circuit. The design of the electromagnet was optimized and was theoretically explained. A PolyDiMethylSiloxane (PDMS) diaphragm with a thickness of approximately 80 µm was used in the pump. The electromagnetic force on the diaphragmwas calculated using a finite elementmethod. Large deformation analysis was used to calculate the displacement of the diaphragm. The force and displacement measurements agreed well with those calculated by simulation. The performance of the fabricated pump was also evaluated. During pumping, the displacement of the diaphragm reached 500 µm, which is the same as the height of the chamber. Furthermore, because of the large displacement, the pump is bubble tolerant and self-priming. A maximum flow rate of 50 µL/min and a maximum pressure of 110 Pa were achieved. A square wave input signal was demonstrated to be more effective than a sinusoidal signal in generating a high flow rate.

Congratulations! The Best Paper Award 2014

2014 ◽  
Vol 8 (5) ◽  
pp. 623-623
Author(s):  
Editorial Office
Keyword(s):  
Thin Film ◽  
Permanent Magnet ◽  
Selection Process ◽  
Linear Motor ◽  
Paper Award ◽  
Award Winner ◽  
Dlc Coating ◽  
Future Success ◽  
Automation Technology

The fifth Best Paper Award 2014 ceremony was held in Kasumigaseki, Tokyo, Japan, on August 1, 2014, attended by the winner and IJAT committee members who took part in the selection process. The Best Paper was severely selected from among 84 papers published in Vol.7 (2013). The Best Paper Award winner was given a certificate with a nearly US$1,000 honorarium. We congratulate the winner and sincerely wish for his future success.   Title: Positioning Characteristics of a MEMS Linear Motor Utilizing a Thin Film Permanent Magnet and DLC Coating Authors: Ryogen Fujiwara, Tadahiko Shinshi, and Minoru Uehara Int. J. of Automation Technology Vol.7 No.2, March, 2013

scholarly journals СОВРЕМЕННЫЕ ЗАДАЧИ СОЗДАНИЯ И УВОДА С ОРБИТЫ ГРУППИРОВОК КОСМИЧЕСКИХ АППАРАТОВ КЛАССА НАНО И ПИКО

2018 ◽  
pp. 20-35
Author(s):  
Эрик Александрович Лапханов ◽  
Александр Сергеевич Палий
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Formation Flying ◽  
Long Distance ◽  
Rocket Fuel ◽  
Effective Work ◽  
Satellite Systems ◽  
Magnetic Devices ◽  
Distributed Satellite ◽  
Carrier Rocket

The purpose of the present paper is the analysis of current tasks concerning with creation and deorbiting of the formation flying groups consist of nano- and picosatellites and the consideration of the possibility of using permanent magnet devices for the deorbiting of these groups. During research was determined that it is most expedient to use small standardized spacecraft and use them during the development of distributed satellite systems. It can be both formations, and groups of satellites spaced a long distance. The analysis of the current possibilities for the removal of nano- and pico- spacecraft into orbit is carried out. According to the characteristics and properties of super-small spacecraft because of their super-small size and saving of the rocket fuel, it was determined that these spacecrafts proposed to be launch as a passing payload when large, expensive spacecraft is launched into orbit.  To facilitate the integration of spacecrafts such as CubeSats with a carrier rocket, special multi-purpose dispensers were developed. The problems of controlling the configuration of the nano- and pico- satellites formations are shown. The analysis of deorbiting technologies of spacecrafts of the nano- and pico- satellites is carried out. The overview of modern well-known propulsion technologies of nano- and pico- satellites is carried out. The new method of creation and deorbiting of the formation flying groups from nano- and pico- satellites with using new constructive scheme “spherical dispensers” was proposed. The main axes of P-PODs are located along the radiuses of “spherical dispenser”. The technology of deploying and “clotting “of the formation flying groups from nano- and pico- satellites with using tether connection and hoist devices was proposed. The analysis of the possibility of implementation of devices with permanent magnets for nano- and pico- satellites is carried out. The low boundaries of effective work of the magnetic devices were determined. An alternative method for deorbiting nano- and pico- spacecrafts with the help of devices with permanent magnets using “clotting “technology is proposed

scholarly journals Reading thin film permanent magnet irregular patterns using magnetoresistive sensors

2020 ◽  
Vol 303 ◽  
pp. 111673
Author(s):  
Sofia Abrunhosa ◽  
Karla J. Merazzo ◽  
Tiago Costa ◽  
Oliver Sandig ◽  
Fernando Franco ◽  
...  
Keyword(s):  
Thin Film ◽  
Permanent Magnet ◽  
Magnetoresistive Sensors
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