公开(公告)号：US20050046024A1

公开(公告)日：2005-03-03

申请号：US10961446

申请日：2004-10-08

申请人： Pankaj Mithal ,  William Higdon ,  Mark Gose ,  John Dikeman ,  Frank Stepniak

发明人： Pankaj Mithal ,  William Higdon ,  Mark Gose ,  John Dikeman ,  Frank Stepniak

IPC分类号： H01L23/485 ,  H01L23/528 ,  H01L21/44

CPC分类号： H01L24/02 ,  H01L23/528 ,  H01L24/10 ,  H01L2224/0401 ,  H01L2924/01013 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/0105 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/014 ,  H01L2924/14

摘要： A metal runner that improves the current-carrying capability of solder bumps used to electrically connect a surface-mount circuit device to a substrate. The runner comprises at least one leg portion and a pad portion, with the pad portion having a continuous region and a plurality of separate electrical paths leading to and from the continuous region. The electrical paths are delineated in the pad portion by nonconductive regions defined in the pad portion, with at least some of the nonconductive regions extending into the leg portion. The multiple electrical paths split the current flow to and from the solder bump, distributing the current around the perimeter of the solder bump in a manner that reduces current density in regions of the solder bump where electromigration is most likely.

摘要翻译： 金属流道，其提高用于将表面贴装电路器件电连接到衬底的焊料凸块的载流能力。 流道包括至少一个支腿部分和垫部分，其中该焊盘部分具有连续区域和连续区域的多个分开的电路径。 在焊盘部分中通过限定在焊盘部分中的非导电区域描绘电路径，其中至少一些非导电区域延伸到腿部。 多个电路径将电流流向和从焊料凸块分开，以在减少电子迁移最有可能的焊料凸块区域中的电流密度的方式将电流分布在焊料凸块的周边周围。

公开(公告)号：US20070029669A1

公开(公告)日：2007-02-08

申请号：US11198419

申请日：2005-08-05

申请人： Frank Stepniak ,  William Higdon

发明人： Frank Stepniak ,  William Higdon

IPC分类号： H01L23/48 ,  H01L23/52 ,  H01L29/40

CPC分类号： H01L24/10 ,  H01L24/05 ,  H01L24/13 ,  H01L24/81 ,  H01L2224/0401 ,  H01L2224/05022 ,  H01L2224/05027 ,  H01L2224/05572 ,  H01L2224/13 ,  H01L2224/13099 ,  H01L2224/16 ,  H01L2224/81011 ,  H01L2224/8121 ,  H01L2224/81815 ,  H01L2224/83102 ,  H01L2224/83191 ,  H01L2224/92125 ,  H01L2924/0002 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01019 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01028 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/0105 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01322 ,  H01L2924/01327 ,  H01L2924/014 ,  H01L2924/05042 ,  H01L2924/14 ,  H01L2924/30105 ,  H01L2924/00014 ,  H01L2224/05552 ,  H01L2924/00

摘要： An integrated circuit (IC) includes a semiconductor material, electronic circuitry formed on the semiconductor material, a contact layer formed on the electronic circuitry, a final passivation layer formed on the contact layer and an under-bump metallurgy (UBM) formed on at least a portion of the final passivation layer. The contact layer includes a plurality of contacts pads for providing external access to the electronic circuitry. The final passivation layer includes a plurality of windows that extend through the final passivation layer to the contact pads. The UBM includes an aluminum layer having a thickness of about 800 angstroms to about 1200 angstroms, a nickel/vanadium (Ni/V) layer having a thickness of about 800 angstroms to about 1200 angstroms and a copper (Cu) layer having a thickness of about 800 angstroms to about 1200 angstroms.

摘要翻译： 集成电路（IC）包括半导体材料，形成在半导体材料上的电子电路，形成在电子电路上的接触层，形成在接触层上的最终钝化层和至少形成的凸块下冶金（UBM） 最终钝化层的一部分。 接触层包括用于提供对电子电路的外部访问的多个接触焊盘。 最终钝化层包括多个窗口，其延伸穿过最终钝化层到接触垫。 UBM包括厚度约800埃至约1200埃的铝层，厚度约800埃至约1200埃的镍/钒（Ni / V）层和厚度为 约800埃至约1200埃。