| 发明名称 |
Lead-free conductive paste composition and semiconductor devices made therewith |
| 摘要 |
A lead-free conductive paste composition contains a source of an electrically conductive metal, a fusible material, an optional additive, and an organic vehicle. An article such as a high-efficiency photovoltaic cell is formed by a process of deposition of the lead-free paste composition on a semiconductor substrate (e.g., by screen printing) and firing the paste to remove the organic vehicle and sinter the metal and fusible material. |
| 申请公布号 |
US9039942(B2) |
申请公布日期 |
2015.05.26 |
| 申请号 |
US201113332629 |
申请日期 |
2011.12.21 |
| 申请人 |
E I DU PONT DE NEMOURS AND COMPANY |
发明人 |
Torardi Carmine;Vernooy Paul Douglas |
| 分类号 |
H01B1/02;H01B1/22;H01L31/0224 |
主分类号 |
H01B1/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A paste composition comprising in admixture:
(a) a source of electrically conductive metal; (b) a fusible material comprising:
50-90 wt. % Bi2O3,8-15 wt. % Al2O3,2-26 wt. % SiO2,0-9 wt. % B2O3, andwherein the weight percentages are based on the total fusible material, and wherein some or all of at least one of the oxides is optionally replaced by a fluoride of the same cation in an amount such that the fusible material comprises at most 5 wt. % of fluorine, based on the total fusible material; and (c) an organic vehicle, andwherein the paste composition is lead-free. |
| 地址 |
Wilmington DE US |
