Silver paste and its use in semiconductor devices
US-2016369111-A1 · Dec 22, 2016 · US
Conductive paste for forming solar cell electrode
US10249774B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10249774-B2 |
| Application number | US-201615551488-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 2, 2016 |
| Priority date | Mar 13, 2015 |
| Publication date | Apr 2, 2019 |
| Grant date | Apr 2, 2019 |
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- Title
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Abstract
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A conductive paste for forming solar cell electrodes that obtains favorable electrical characteristics and sufficient adhesion strength to a substrate. The conductive paste for forming a solar cell electrode includes the following: a tellurium-based glass frit containing 30-70 mol % of tellurium, 15-40 mol % of tungsten, 5-30 mol % of zinc, 0-20 mol % of boron, and 0-10 mol % of zirconium (where a total content of boron and zirconium is greater than 0 mol %) in terms of oxides; a conductive powder having silver as a main component and specific surface area of 0.4 m 2 /g or more; and an organic vehicle.
First claim
Opening claim text (preview).
What is claimed is: 1. A conductive paste for forming a solar cell electrode, said conductive paste comprising a tellurium-based glass frit containing, in terms of oxide, 40-60 mol % of tellurium, 20-30 mol % of tungsten, 7-20 mol % of zinc, 5-10 mol % of boron and 1-5 mol % of zirconium, a conductive powder having silver as a main component and a specific surface area of at least 0.4 m 2 /g and an organic vehicle, wherein 0.1-10 mass parts of the tellurium-based glass frit is contained in the conductive paste with respect to 100 mass parts of the conductive powder. 2. The conductive paste for forming the solar cell electrode according to claim 1 , wherein the specific surface area of the conductive powder is no more than 1.0 m 2 /g.
Assignees
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Classifications
- H01B1/22Primary
the conductive material comprising metals or alloys · CPC title
- H01B1/02Primary
mainly consisting of metals or alloys · CPC title
containing zinc · CPC title
- H01L31/022425Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US10249774B2 cover?
- A conductive paste for forming solar cell electrodes that obtains favorable electrical characteristics and sufficient adhesion strength to a substrate. The conductive paste for forming a solar cell electrode includes the following: a tellurium-based glass frit containing 30-70 mol % of tellurium, 15-40 mol % of tungsten, 5-30 mol % of zinc, 0-20 mol % of boron, and 0-10 mol % of zirconium (wher…
- Who is the assignee on this patent?
- Shoei Chemical Ind Co
- What technology area does this patent fall under?
- Primary CPC classification H01B1/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 02 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).