Conductive paste, electrode, electronic component, and electronic device

By using a conductive paste containing a zinc-containing surface treatment layer in the electrodes of metals such as silver, the electrode wire breakage caused by vulcanization is solved, and electrode formation with high vulcanization resistance and low cost is achieved.

CN119654687APending Publication Date: 2025-03-18NAMICS CORPORATION
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Patent Information

Application Number
CN202380059430.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-26
Filing Date
2023-08-25
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

In the prior art, when sulfur oxides and hydrogen sulfide are present in the atmosphere, the silver inside the electrode becomes silver sulfide, which causes the electrode to be broken.

Method used

A conductive paste containing surface-treated metal particles is used, which contains 50% by weight or more silver, and a surface treatment layer of zinc compound is formed on the surface of the metal particles to inhibit the vulcanization reaction.

Benefits of technology

By using the electrode formed by the conductive paste, the vulcanization resistance can be significantly improved, and the vulcanization reaction can be reduced, thereby reducing the incidence of electrode wire breakage and reducing costs.

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Abstract

The present invention provides a conductive paste comprising (A) conductive particles and (B) a binder resin, the (A) conductive particles comprising surface-treated metal particles, the surface-treated metal particles comprising metal particles and a surface-treated layer disposed on at least a portion of the surface of the metal particles, the surface-treated layer comprising a zinc compound. The conductive paste can form an electrode which has high sulfuration resistance and is relatively low in cost.
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