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US-2015225588-A1 · Aug 13, 2015 · US
Metal nanoparticle dispersion, method for producing metal nanoparticle dispersion, and bonding method
US2016101486A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016101486-A1 |
| Application number | US-201414787163-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 25, 2014 |
| Priority date | Apr 26, 2013 |
| Publication date | Apr 14, 2016 |
| Grant date | — |
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- Title
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Abstract
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There is provided a metal nanoparticle dispersion which can be bonded at a lower temperature (for example, 200° C. or less), and enabling to obtain excellent mechanical properties and electric properties of the bonded portion, the metal nanoparticle dispersion, including: metal nanoparticles, with at least a part of a surface of each particle coated with amine A having 8 or more carbon atoms; and a dispersion medium for dispersing the metal nanoparticles, wherein the dispersion medium contains amine B which is primary, secondary, or tertiary amine having 7 or less carbon atoms, and which is linear alkyl amine or alkanol amine.
First claim
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1 . A metal nanoparticle dispersion, comprising: metal nanoparticles, with at least a part of a surface of each particle coated with amine A having 8 or more carbon atoms; and a dispersion medium for dispersing the metal nanoparticles, wherein the dispersion medium contains amine B which is primary, secondary, or tertiary amine having 7 or less carbon atoms, and which is linear alkyl amine or alkanol amine. 2 . The metal nanoparticle dispersion according to claim 1 , wherein an average particle size of the metal nanoparticles is 1 to 200 nm. 3 . The metal nanoparticle dispersion according to claim 1 , wherein 0.1 to 1 pts.mass. of the amine B is contained, based on 100 pts.mass. of the metal nanoparticles. 4 . The metal nanoparticle dispersion according to claim 1 , wherein a metal constituting the metal nanoparticles contains silver. 5 . The metal nanoparticle dispersion according to claim 1 , wherein the amine A is octyl amine, and the amine B is at least one kind selected from triethanolamine, diethanolamine, and butylamine. 6 . A method for producing a metal nanoparticle dispersion, comprising: making amine A having 8 or more carbon atoms, adhered to at last a part of each surface of metal nanoparticles; and adding amine B which is primary, secondary, or tertiary amine having 7 or less carbon atoms, and which is linear alkyl amine or alkanol amine, to a dispersion medium for dispersing the metal nanoparticles. 7 . A bonding method, comprising bonding a plurality of objects to be bonded, using a bonding material containing the metal nanoparticle dispersion of claim 1 .
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Classifications
Dispersions or suspensions of nanosized particles · CPC title
Metallic powder coated with organic material · CPC title
Soldering, e.g. brazing, or unsoldering (B23K3/00 takes precedence) · CPC title
Ag as the principal constituent · CPC title
- B23K35/025Primary
Pastes, creams or slurries · CPC title
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- What does patent US2016101486A1 cover?
- There is provided a metal nanoparticle dispersion which can be bonded at a lower temperature (for example, 200° C. or less), and enabling to obtain excellent mechanical properties and electric properties of the bonded portion, the metal nanoparticle dispersion, including: metal nanoparticles, with at least a part of a surface of each particle coated with amine A having 8 or more carbon atoms; a…
- Who is the assignee on this patent?
- Dowa Electronics Materials Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23K35/025. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Apr 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).