Metal fusion bonding – Process – With protecting of work or filler or applying flux
Reexamination Certificate
2005-07-12
2005-07-12
Johnson, Jonathan (Department: 1725)
Metal fusion bonding
Process
With protecting of work or filler or applying flux
C148S023000
Reexamination Certificate
active
06915944
ABSTRACT:
The present invention relates to a soldering flux, a soldering paste and a soldering method that achieve a sufficient degree of bonding strength even when components are mounted at a higher density, components are further miniaturized or components are mounted with a smaller pitch. A flux3contains an adhesive resin and a hardening agent. This flux or a soldering paste containing the flux is applied onto a component mounting board1, and then, an electronic component4is mounted and soldered onto the component mounting board1.
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Taro Hukui: “Required characteristic and developing direction in under fill materials” High-Density Mounting Technology, vol. 5, pp. 116-122, Nov. 9, 1999.
Abe Hisayuki
Takaya Minoru
Johnson Jonathan
TDK Corporation
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