Fundamental Study on Coating Wire Electrode for High Performance WEDM(Electrical machining)

2005 ◽  
Vol 2005.2 (0) ◽  
pp. 779-782 ◽  
Author(s):  
Masato MORITA ◽  
Toshiyuki YAMAUCHI ◽  
Akira OKADA ◽  
Yoshiyuki UNO ◽  
Toshiaki SHIMIZU
Keyword(s):  
High Performance ◽  
Wire Electrode ◽  
Fundamental Study

Challenge to Development of Functional Multi-Wire EDM Slicing Method Using Wire Electrode with Track-Shaped Section

2012 ◽  
Vol 523-524 ◽  
pp. 287-292 ◽  
Author(s):  
Yasuhiro Okamoto ◽  
Yasuaki Kimura ◽  
Akira Okada ◽  
Yoshiyuki Uno ◽  
Jun Ohya ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
High Performance ◽  
Kerf Width ◽  
Working Environment ◽  
Wire Electrode ◽  
Wire Edm ◽  
Wafer Thickness ◽  
Wire Saw ◽  
Slicing Method ◽  
Shaped Section

Brittle materials, such as silicon, silicon carbide and sapphire have been conventionally sliced for wafers by a multi-wire saw method with slurry in industrial fields. Recently, the multi-wire saw method with a fixed diamond abrasive wire has been available as a commercial product at acceptable cost, and the high slicing performance is expected compared with the normal multi-wire saw method with slurry. However, there still remain some problems such as bad working environment with abrasives, cleaning cost of sliced wafers, crack generation on the sliced surface and a large kerf loss against a wafer thickness. On the other hand, the developed multi-wire EDM slicing method would accomplish the high performance slicing of silicon and silicon carbide with a narrow kerf width under a clean process environment. However, the thinner wire is challenging process with a normal round shape wire electrode. Therefore, the new wire electrode with track-shaped section was proposed in order to satisfy both the narrow kerf width and the high wire tension even in the case of thin wire electrode. In this study, the running control of wire electrode with a track-shaped section was experimentally investigated, and the possibility of proposed process was discussed.

scholarly journals FUNDAMENTAL STUDY ON HIGH PERFORMANCE ANCHOR BAR FOR OUTSIDE SEISMIC REINFORCEMENT

2012 ◽  
Vol 66 (1) ◽  
pp. 367-374
Author(s):  
Kazuo YAMADA ◽  
Toshikatsu SEKI ◽  
Akira ONO ◽  
Takashi KAMIYA
Keyword(s):  
High Performance ◽  
Fundamental Study

scholarly journals Development of Coated Wire Electrode for High-Performance WEDM (3rd Report)-Effects of wire surface unevenness on wire EDM characteristics-

2009 ◽  
Vol 43 (104) ◽  
pp. 179-186 ◽  
Author(s):  
Akira OKADA ◽  
Toshiyuki YAMAUCHI ◽  
Masayuki HIGASHI ◽  
Toshiaki SHIMIZU ◽  
Yoshiyuki UNO
Keyword(s):  
High Performance ◽  
Wire Electrode ◽  
Wire Edm ◽  
Wire Surface ◽  
Coated Wire ◽  
Coated Wire Electrode

Fundamental Study of Polymer to Metal Bonding in Integrated Circuit Packaging

2018 ◽  
Author(s):  
Dinesh P. R. Thanu ◽  
Roozbeh Danaei ◽  
Alexander Bermudez ◽  
Sergio A. Chan ◽  
Suzana Prstic
Keyword(s):  
Integrated Circuit ◽  
High Performance ◽  
Failure Modes ◽  
Form Factors ◽  
High Volume ◽  
Production Costs ◽  
Interfacial Chemistry ◽  
Fundamental Study ◽  
Metal Bonding ◽  
Polymer Metal

Nowadays microelectronic packaging has become a billion dollar business. Due to the increased material and production costs per package, manufacturing yield loss in this state-of-art business is expected to be at a bare minimum which is tough to persevere in a high volume manufacturing environment. Additionally, high performance and varied power computing needs in the electronic business demands microprocessors with different form factors and complex package designs. One of the most common joint which is extensively used in such a complicated package is the polymer to metal bonding. In the latest technology products involving high package warpage, interfacial bonding has to be strong enough to withstand the dynamic warpage and high mechanical stresses associated with it and hence the reliability of polymer to metal adhesion is critical. In this paper, fundamental mechanisms related to adhesion phenomena of polymer-metal interface are proposed. Adhesive failure modes related to polymer-metal bonding and key variables influencing the bonding of silicone based polymer material to nickel electroplated on copper in an integrated circuit heat spreader assembly are experimentally studied. Factors modulating polymer to metal bonding including interfacial chemistry, surface contamination and material roughness are evaluated.

scholarly journals FUNDAMENTAL STUDY ON THE PRODUCTION AND FLUIDITY OF SUPER HIGH PERFORMANCE GROUT

2009 ◽  
Vol 63 (1) ◽  
pp. 493-499
Author(s):  
Masamichi TAKAHASHI ◽  
Kenzo SEKIJIMA ◽  
Junichi IZUMO
Keyword(s):  
High Performance ◽  
Fundamental Study

FUNDAMENTAL STUDY ON IMPROVING THE DURABILITY AND DRIVING SAFETY OF THE HIGH-PERFORMANCE SMA

2018 ◽  
Vol 74 (3) ◽  
pp. I_105-I_112
Author(s):  
Shunsuke TANAKA ◽  
Kimio MARUYAMA ◽  
Kiyoshi TAKEICHI ◽  
Tomohiro FURUTA
Keyword(s):  
High Performance ◽  
Driving Safety ◽  
Fundamental Study

Fundamental study of hydroxyapatite high-performance liquid chromatography

1990 ◽  
Vol 515 ◽  
pp. 91-123 ◽  
Author(s):  
Tsutomu Kawasaki ◽  
Makoto Niikura ◽  
Yuriko Kobayashi
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Fundamental Study

Towards high-performance solid-state Li–S batteries: from fundamental understanding to engineering design

2020 ◽  
Vol 49 (7) ◽  
pp. 2140-2195 ◽  
Author(s):  
Xiaofei Yang ◽  
Jing Luo ◽  
Xueliang Sun
Keyword(s):  
Solid State ◽  
Engineering Design ◽  
High Performance ◽  
Review Article ◽  
Comprehensive Overview ◽  
Fundamental Study ◽  
Fundamental Understanding

This review article provides a comprehensive overview of solid-state Li–S batteries from the viewpoints of fundamental study and engineering design.

The prospects of phosphorene as an anode material for high-performance lithium-ion batteries: a fundamental study

2017 ◽  
Vol 28 (7) ◽  
pp. 075401 ◽  
Author(s):  
Congyan Zhang ◽  
Ming Yu ◽  
George Anderson ◽  
Ruchira Ravinath Dharmasena ◽  
Gamini Sumanasekera
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Lithium Ion ◽  
Fundamental Study

scholarly journals Fundamental Study on Multi-wire EDM Slicing of SiC by Wire Electrode with Track-shaped Section

Procedia CIRP ◽  
2013 ◽  
Vol 6 ◽  
pp. 232-237 ◽  
Author(s):  
A. Kimura ◽  
Y. Okamoto ◽  
A. Okada ◽  
J. Ohya ◽  
T. Yamauchi
Keyword(s):  
Wire Electrode ◽  
Wire Edm ◽  
Fundamental Study ◽  
Shaped Section
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