SEMICONDUCTOR DEVICE
    2.
    发明申请

    公开(公告)号:US20180294239A1

    公开(公告)日:2018-10-11

    申请号:US15888846

    申请日:2018-02-05

    Abstract: There is a need to improve reliability of the semiconductor device.A semiconductor device includes a printed circuit board and a semiconductor chip mounted over the printed circuit board. The semiconductor chip includes a pad, an insulation film including an opening to expose part of the pad, and a pillar electrode formed over the pad exposed from the opening. The printed circuit board includes a terminal and a resist layer including an opening to expose part of the terminal. The pillar electrode of the semiconductor chip and the terminal of the printed circuit board are coupled via a solder layer. Thickness h1 of the pillar electrode is measured from the upper surface of the insulation film. Thickness h2 of the solder layer is measured from the upper surface of the resist layer. Thickness h1 is greater than or equal to a half of thickness h2 and is smaller than or equal to thickness h2.

    SEMICONDUCTOR DEVICE
    6.
    发明申请

    公开(公告)号:US20220020604A1

    公开(公告)日:2022-01-20

    申请号:US16930106

    申请日:2020-07-15

    Abstract: A semiconductor device includes a package substrate, a semiconductor chip and a solder bump. The semiconductor chip is disposed on the package substrate. The package substrate includes a first electrode pad, and a first insulating film formed such that the first insulating film exposes a first portion of a surface of the first electrode pad. The semiconductor chip includes a second electrode pad and a second insulating film formed such that the second insulating film exposes a second portion of a surface of the second electrode pad. The second electrode pad is formed on the first electrode pad through the solder bump. L2/L1 is 0.63 or more in a cross section passing through the first electrode pad, the solder bump and the second electrode pad. A first length of the first portion and a second length of the second portion are defined as L1 and L2, respectively.

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