Pillar interconnect chip to package and global wiring structure
    67.
    发明授权
    Pillar interconnect chip to package and global wiring structure 失效
    支柱互连芯片封装和全局布线结构

    公开(公告)号:US08492267B1

    公开(公告)日:2013-07-23

    申请号:US13633449

    申请日:2012-10-02

    Abstract: Pillar interconnect chip to package and global wiring structures and methods of manufacturing are discloses. The method includes forming a resist directly over at least one landing pad and at least one wiring layer, and forming a first pattern in the resist over the landing pad and a second pattern over the wiring layer, using a single lithography step. The method further includes forming metal in the first pattern in electrical contact with the landing pad. The method further includes removing remaining resist over the wiring layer to deepen the second pattern. The method further includes forming a pillar interconnect in the first pattern and a wiring in the second pattern by adding additional metal on the metal in the first pattern and over the at least one wiring layer in the second pattern, respectively. The method further includes removing any remaining resist.

    Abstract translation: 柱式互连芯片封装和全局布线结构及制造方法均公开。 该方法包括直接在至少一个着陆焊盘和至少一个布线层上形成抗蚀剂,并且使用单个平版印刷步骤,在着色焊盘上的抗蚀剂中形成第一图案,并在布线层上形成第二图案。 该方法还包括在第一图案中形成与着陆垫电接触的金属。 该方法还包括去除布线层上的剩余抗蚀剂以加深第二图案。 该方法还包括通过在第一图案中的金属上添加额外的金属和在第二图案中的至少一个布线层上分别在第一图案中形成柱互连和第二图案中的布线。 该方法还包括去除任何剩余的抗蚀剂。

    Mixed UBM and mixed pitch on a single die

    公开(公告)号:US11270964B2

    公开(公告)日:2022-03-08

    申请号:US16030973

    申请日:2018-07-10

    Abstract: Embodiments are directed to a method of forming a semiconductor chip package and resulting structures having a mixed under-bump metallization (UBM) size and pitch on a single die. A first set of UBMs having a first total plateable surface area is formed on a first region of a die. A second set of UBMs having an equal total plateable surface area is formed on a second region of the die. A solder bump having a calculated solder height is applied to a plateable surface of each UBM. The solder height is calculated such that a volume of solder in the first region is equal to a volume of solder in the second region.

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