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