Presentation 2009-12-18
Magnetic Pulse Welding of a Copper Sheet to Metal Pillars (Copper Bumps)
Tomokatsu AIZAWA, Keigo OKAGAWA, Tetsuo MACHIDA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper describes a new joining method of a copper sheet to metal pillars (copper bumps) and its experimental results. The pillars are put in holes of a thin insulator and near the sheet. When an impulse current from a capacitor bank passes through a flat one-turn coil, a magnetic flux is suddenly generated around the coil. Eddy currents are induced in the sheet placed between the coil and the insulator. Electromagnetic force acts on the sheet. The sheet can be welded to the pillers both by the Joule heat and by the high-speed collision to the pillers. The bank energy required for this welding is less than 2 kJ.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Magnetic pulse welding / Electromagnetic force / Joining / Copper bump / Large-current circuit board
Paper # EMD2009-107
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Conference Information
Committee EMD
Conference Date 2009/12/11(1days)
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Paper Information
Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Magnetic Pulse Welding of a Copper Sheet to Metal Pillars (Copper Bumps)
Sub Title (in English)
Keyword(1) Magnetic pulse welding
Keyword(2) Electromagnetic force
Keyword(3) Joining
Keyword(4) Copper bump
Keyword(5) Large-current circuit board
1st Author's Name Tomokatsu AIZAWA
1st Author's Affiliation Tokyo Metropolitan College of Industrial Technology()
2nd Author's Name Keigo OKAGAWA
2nd Author's Affiliation Tokyo Metropolitan College of Industrial Technology
3rd Author's Name Tetsuo MACHIDA
3rd Author's Affiliation NIHON-MULTI Corporation
Date 2009-12-18
Paper # EMD2009-107
Volume (vol) vol.109
Number (no) 352
Page pp.pp.-
#Pages 4
Date of Issue