Method of obtaining a 18 carats 3n gold alloy
US-2018320283-A1 · Nov 8, 2018 · US
Acidic gold alloy plating solution
US9303326B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303326-B2 |
| Application number | US-201113292776-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 9, 2011 |
| Priority date | Jun 6, 2007 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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Abstract
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A gold alloy plating solution and plating method thereof that provides a gold plating solution with high deposition selectivity by using a gold plating solution that contains gold cyanide, cobalt ions, hexamethylene tetramine, and specific glossing agents.
First claim
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What is claimed is: 1. An acidic gold alloy plating solution consisting of gold cyanide or salt thereof, cobalt ions, one or more acids or salts thereof selected from the group consisting of aminotrimethylene phosphonic acid, 1-hydroxyethyl-idene-1,1-diphosphonic acid, ethylenediamine tetramethylene phosphonic acid, diethylene-triamine pentamethylene phosphonic acid, phosphoric acid, sulfurous acid, amino acids and carboxylic acids wherein the carboxylic acids are selected from the…
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Frequently asked questions
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- What does patent US9303326B2 cover?
- A gold alloy plating solution and plating method thereof that provides a gold plating solution with high deposition selectivity by using a gold plating solution that contains gold cyanide, cobalt ions, hexamethylene tetramine, and specific glossing agents.
- Who is the assignee on this patent?
- Morii Yutaka, Orihashi Masanori, Rohm & Haas Elect Mat
- What technology area does this patent fall under?
- Primary CPC classification C25D3/62. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 05 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).