发明名称 |
Solder balls and semiconductor device employing the same |
摘要 |
A solder ball and a semiconductor device using the same are provided. In a Sn-based solder ball in which a first plating layer and a second plating layer are sequentially formed on a core ball, the second plating layer includes a Sn—Ag—Cu alloy, and Ag3Sn intermetallic compound (IMC) nanoparticles or Ag—Sn compound nanoparticles exist in the second plating layer. The solder balls have high sphericity and stand-off characteristics and connection reliability so that a semiconductor device having a high degree of integration may be implemented. |
申请公布号 |
US9391039(B2) |
申请公布日期 |
2016.07.12 |
申请号 |
US201414446788 |
申请日期 |
2014.07.30 |
申请人 |
MK Electron Co., Ltd. |
发明人 |
Moon Jeong Tak;Son Jae Yeol;Kumar Santosh;Kim Eung Jae;Kim Hui Joong;Cha Ho Gun |
分类号 |
H01L23/48;H01L23/00;H01B1/02 |
主分类号 |
H01L23/48 |
代理机构 |
Brinks Gilson & Lione |
代理人 |
Brinks Gilson & Lione |
主权项 |
1. A Sn-based solder ball in which a first plating layer and a second plating layer are sequentially formed on a core ball,
wherein the second plating layer comprises a Sn—Ag—Cu alloy, and wherein Ag3Sn intermetallic compound (IMC) nanoparticles and/or Ag—Sn compound nanoparticles exist in the second plating layer. |
地址 |
KR |