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Patent Searching and Data


Title:
METHOD FOR BONDING WIRE MANUFACTURING AND MANUFACTURING APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/117562
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a bonding wire, which has an intermetallic phase intermediate layer, by injecting molten gold (Au) into the surface of a silver (Ag) or copper (Cu) core. The manufacturing method comprises: putting a surface layer metal of a bonding wire in a crucible having a die cooler provided at the lower part thereof, and melting the same; putting a main component metal core of the bonding wire in a core guide located at the upper part of the die cooler of the crucible, and heating the core guide to the melting point or below of the metal core; transferring the metal core toward the die cooler so as to allow the molten surface layer metal to be injected to the surface of the metal core, thereby casting a bonding wire precursor having an intermetallic phase intermediate layer which is formed on the surface of the core metal and in which the surface layer metal material and the core metal material are mixed; and manufacturing a 50-350 μm bonding wire from the cast wire precursor by using a drawing die.

Inventors:
SONG, Mun-Sub (231 Sandu-ro, Ilsandong-guGoyang-si, Gyeonggi-do, 10357, KR)
Application Number:
KR2018/015609
Publication Date:
June 20, 2019
Filing Date:
December 10, 2018
Export Citation:
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Assignee:
SONG, Mun-Sub (231 Sandu-ro, Ilsandong-guGoyang-si, Gyeonggi-do, 10357, KR)
International Classes:
H01L23/00; C21C5/46; F27D1/18; H01L23/495
Foreign References:
KR20070089754A2007-08-31
KR20090085787A2009-08-10
JP2682601B21997-11-26
KR20140071706A2014-06-12
KR20040058014A2004-07-02
Attorney, Agent or Firm:
GO, Hong Yeol (502 DaeJoon Bldg, 82-3 Bongsung-ro,Gunpo-si, Gyeonggi-do, 15850, KR)
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