公开(公告)号：US20130147032A1

公开(公告)日：2013-06-13

申请号：US13313747

申请日：2011-12-07

申请人： Shin-Puu JENG ,  Wei-Cheng WU ,  Shang-Yun HOU ,  Chen-Hua YU ,  Tzuan-Horng LIU ,  Tzu-Wei CHIU ,  Kuo-Ching HSU

发明人： Shin-Puu JENG ,  Wei-Cheng WU ,  Shang-Yun HOU ,  Chen-Hua YU ,  Tzuan-Horng LIU ,  Tzu-Wei CHIU ,  Kuo-Ching HSU

IPC分类号： H01L23/48 ,  H01L21/60

CPC分类号： H01L22/34 ,  G01R31/2884 ,  H01L21/76885 ,  H01L22/32 ,  H01L23/49838 ,  H01L24/11 ,  H01L24/13 ,  H01L24/16 ,  H01L2224/02126 ,  H01L2224/0401 ,  H01L2224/05001 ,  H01L2224/0554 ,  H01L2224/10126 ,  H01L2224/13005 ,  H01L2224/16225 ,  H01L2924/12044 ,  H01L2924/15311 ,  H01L2924/00

摘要： The embodiments described above provide mechanisms for forming metal bumps on metal pads with testing pads on a packaged integrated circuit (IC) chip. A passivation layer is formed to cover the testing pads and possibly portions of metal pads. The passivation layer does not cover surfaces away from the testing pad region and the metal pad region. The limited covering of the testing pads and the portions of the metal pads by the passivation layer reduces interface resistance for a UBM layer formed between the metal pads and the metal bumps. Such reduction of interface resistance leads to the reduction of resistance of the metal bumps.

摘要翻译： 上述实施例提供了在封装的集成电路（IC）芯片上用测试焊盘在金属焊盘上形成金属凸块的机构。 形成钝化层以覆盖测试焊盘和可能的金属焊盘部分。 钝化层不覆盖远离测试焊盘区域和金属焊盘区域的表面。 通过钝化层测试焊盘和金属焊盘部分的有限覆盖减少了形成在金属焊盘和金属凸块之间的UBM层的界面电阻。 这种界面电阻的降低导致金属凸块的电阻降低。

公开(公告)号：US20120061823A1

公开(公告)日：2012-03-15

申请号：US12879512

申请日：2010-09-10

申请人： Wei-Cheng WU ,  Shang-Yun HOU ,  Shin-Puu JENG ,  Tzuan-Horng LIU ,  Tzu-Wei CHIU ,  Chao-Wen Shih

发明人： Wei-Cheng WU ,  Shang-Yun HOU ,  Shin-Puu JENG ,  Tzuan-Horng LIU ,  Tzu-Wei CHIU ,  Chao-Wen Shih

IPC分类号： H01L23/498 ,  H01L23/485 ,  H01L23/482 ,  H01L21/768

CPC分类号： H01L24/11 ,  H01L23/3114 ,  H01L23/3157 ,  H01L23/525 ,  H01L24/03 ,  H01L24/05 ,  H01L24/13 ,  H01L2224/02126 ,  H01L2224/0235 ,  H01L2224/0345 ,  H01L2224/0361 ,  H01L2224/03912 ,  H01L2224/0401 ,  H01L2224/05005 ,  H01L2224/05008 ,  H01L2224/05012 ,  H01L2224/05014 ,  H01L2224/05015 ,  H01L2224/05018 ,  H01L2224/05022 ,  H01L2224/05027 ,  H01L2224/05166 ,  H01L2224/05181 ,  H01L2224/05187 ,  H01L2224/05541 ,  H01L2224/05558 ,  H01L2224/05559 ,  H01L2224/05562 ,  H01L2224/05572 ,  H01L2224/05573 ,  H01L2224/05582 ,  H01L2224/05647 ,  H01L2224/05666 ,  H01L2224/05681 ,  H01L2224/05687 ,  H01L2224/06131 ,  H01L2224/10126 ,  H01L2224/1132 ,  H01L2224/1145 ,  H01L2224/11452 ,  H01L2224/11462 ,  H01L2224/11464 ,  H01L2224/1147 ,  H01L2224/11849 ,  H01L2224/11912 ,  H01L2224/1308 ,  H01L2224/13083 ,  H01L2224/13109 ,  H01L2224/13111 ,  H01L2224/13139 ,  H01L2224/13144 ,  H01L2224/13147 ,  H01L2224/13155 ,  H01L2224/13164 ,  H01L2224/94 ,  H01L2924/00014 ,  H01L2924/01012 ,  H01L2924/01013 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01025 ,  H01L2924/01029 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01038 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01049 ,  H01L2924/0105 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/10253 ,  H01L2924/1305 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/35 ,  H01L2924/3512 ,  H01L2924/35121 ,  H01L2224/03 ,  H01L2224/11 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/01028 ,  H01L2924/01022 ,  H01L2924/01083 ,  H01L2924/01051 ,  H01L2924/00 ,  H01L2224/05552

摘要： A semiconductor device has a pad structure with a ring-shaped stress buffer layer between a metal pad and an under-bump metallization (UBM) layer. The stress buffer layer is formed of a dielectric layer with a dielectric constant less than 3.5, a polymer layer, or an aluminum layer. The stress buffer layer is a circular ring, a square ring, an octagonal ring, or any other geometric ring.

摘要翻译： 半导体器件具有在金属焊盘和凸块下金属化（UBM）层之间具有环形应力缓冲层的焊盘结构。 应力缓冲层由介电常数小于3.5的介质层，聚合物层或铝层形成。 应力缓冲层是圆形环，方形环，八角形环或任何其它几何环。