Flux composition and soldering paste composition

a technology of composition and soldering paste, which is applied in the direction of welding/cutting media/materials, manufacturing tools, and soldering apparatus, etc., can solve the problems of extreme degradation of the wettability of the solder powder, the deterioration of the solder past, and the failure of printing on the pc board

Inactive Publication Date: 2011-09-15
NIHON SUPERIOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes different types of catalysts that can improve certain properties when added to tin oxynitride (TIN) hydrazones. These catalyst systems have various benefits including improved activity towards desired chemical reaction(especially those involving esters). Additionally, they provide flexibility in terms of controllability over their effectiveness without affecting the stability of the overall composition.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the quality stability (quality) of molten tin-based solder when stored over time without losing its effectiveness.

Method used

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  • Flux composition and soldering paste composition
  • Flux composition and soldering paste composition
  • Flux composition and soldering paste composition

Examples

Experimental program
Comparison scheme
Effect test

embodiments

“Verification of Inclusion Effect”

[0030]An increase in heat resistance caused by the inclusion of activator within the nanotube was verified using a thermogravimetry and differential thermal analysis (TG-DTA).

“Specimen and Preparation Method”

[0031]An inclusion process was performed on specimens, glucopyranosylamine type nanotube as a component of the invention and acetic acid (CH3COOH) under reduced pressure to produce acetic-acid inclusion processed nanotube. Two types of acetic acid were prepared by performing and not performing the inclusion process on a mixture of glucopyranosylamine type nanotube and acetic acid mixed at room temperature. The differential thermal analysis, as is known in the art, refers to a detection of a temperature difference that takes place when a specimen and a reference material are heated and cooled. The differential thermal analysis is based on the fact that a transition takes place in the temperature difference with respect to the reference material if t

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PUM

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Abstract

Disclosed herein are a flux and a soldering paste based on the flux. The flux is free from a change in viscosity with age, “skinned surface,” and “rough and crumbling,” and is excellent in printability and solderability. The flux contains, as elements, a resin, a thixo agent, an activator, a solvent and glucopyranosylamine type nanotube. The soldering paste further contains a solder powder. Preferably, the solder powder is free from lead.

Description

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Claims

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Application Information

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Owner NIHON SUPERIOR CO LTD
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