发明名称 |
INTEGRATED CIRCUIT DEVICES HAVING THROUGH-SILICON VIAS AND METHODS OF MANUFACTURING SUCH DEVICES |
摘要 |
An integrated circuit device includes a semiconductor structure, a through-silicon-via (TSV) structure that penetrates through the semiconductor structure and a connection terminal connected to the TSV structure. A metal capping layer includes a flat capping portion that covers the bottom surface of the connection terminal and a wedge-shaped capping portion that is integrally connected to the flat capping portion and that partially covers a side wall of the connection terminal. The metal capping layer may be formed by an electroplating process in which the connection terminal is in contact with a metal strike electroplating solution while a pulse-type current is applied. |
申请公布号 |
US2016099201(A1) |
申请公布日期 |
2016.04.07 |
申请号 |
US201514873453 |
申请日期 |
2015.10.02 |
申请人 |
Choi Ju-il;Fujisaki Atsushi;Park Byung-lyul;Park Ji-soon;Jang Joo-hee;Jin Jeong-gi |
发明人 |
Choi Ju-il;Fujisaki Atsushi;Park Byung-lyul;Park Ji-soon;Jang Joo-hee;Jin Jeong-gi |
分类号 |
H01L23/498;H01L23/532;H01L23/48 |
主分类号 |
H01L23/498 |
代理机构 |
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代理人 |
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主权项 |
1. An integrated circuit device comprising:
a semiconductor structure; a through-silicon-via (TSV) structure that extends in a first direction and that penetrates through the semiconductor structure; a connection terminal on the semiconductor structure, the connection terminal including an upper surface that is electrically connected to the TSV structure, a bottom surface that is opposite the upper surface, and a side wall that extends between the bottom surface and the upper surface; and a metal capping layer that includes a flat capping portion that covers the bottom surface of the connection terminal, and a wedge-shaped capping portion that is integrally connected to the flat capping portion and that partially covers the side wall of the connection terminal. |
地址 |
Seongnam-si KR |