公开(公告)号：US20130119012A1

公开(公告)日：2013-05-16

申请号：US13661888

申请日：2012-10-26

Applicant: TESSERA INTERCONNECT MATERIALS, INC.

Inventor： Kimitaka Endo

IPC: H01R43/02

CPC classification number: H01R43/0256 ,  H01L2224/05571 ,  H01L2224/05573 ,  H01L2224/13609 ,  H01L2924/00014 ,  H01L2924/01019 ,  H01L2924/01322 ,  H05K1/185 ,  H05K3/06 ,  H05K3/4007 ,  H05K3/4015 ,  H05K3/4614 ,  H05K2201/0355 ,  H05K2201/0361 ,  H05K2201/10674 ,  H05K2203/0384 ,  H05K2203/0542 ,  H01L2224/05599

Abstract: An interconnection element and method for making same is disclosed. The interconnection element may include a plurality of metal conductors, a plurality of solid metal bumps and a low melting point (LMP) metal layer. The solid metal bumps overly and project in a first direction away from respective ones of the conductors. Each bump has at least one edge bounding the bump in at least a second direction transverse to the first direction. The low melting point (LMP) metal layer has a first face joined to the respective ones of the conductors and bounded in the second direction by at least one edge and a second face joined to the bumps. The edges of the bumps and the LMP layer are aligned in the first direction, and the LMP metal layer has a melting temperature substantially lower than the conductors.

Abstract translation: 公开了互连元件及其制造方法。 互连元件可以包括多个金属导体，多个固体金属凸块和低熔点（LMP）金属层。 固体金属凸起并且远离相应导体的第一方向突出。 每个凸块具有至少一个沿至少一个横向于第一方向的第二方向限定凸块的边缘。 低熔点（LMP）金属层具有通过至少一个边缘和与凸块接合的第二面连接到各个导体并沿第二方向限定的第一面。 凸块和LMP层的边缘在第一方向上对齐，并且LMP金属层的熔化温度基本上低于导体。