Uniform electrochemical plating of metal onto arrays of pillars having different lateral densities and related technology

    公开(公告)号:US11527505B2

    公开(公告)日:2022-12-13

    申请号:US17102253

    申请日:2020-11-23

    Abstract: A semiconductor die assembly in accordance with an embodiment of the present technology includes first and second semiconductor dies spaced apart from one another. The first semiconductor die has a major surface with non-overlapping first and second regions. The semiconductor die assembly further includes an array of first pillars extending heightwise from the first region of the major surface of the first semiconductor die toward the second semiconductor die. Similarly, the semiconductor die assembly includes an array of second pillars extending heightwise from the second region of the major surface of the first semiconductor die toward the second semiconductor die. The first and second pillars have different lateral densities and different average widths. The latter difference at least partially offsets an effect of the former difference on relative metal deposition rates of an electrochemical plating process used to form the first and second pillars.

    Die Features for Self-Alignment During Die Bonding

    公开(公告)号:US20200373252A1

    公开(公告)日:2020-11-26

    申请号:US16993860

    申请日:2020-08-14

    Abstract: A semiconductor device assembly that includes a substrate having a first side and a second side, the first side having at least one dummy pad and at least one electrical pad. The semiconductor device assembly includes a first semiconductor device having a first side and a second side and at least one electrical pillar extending from the second side. The electrical pillar is connected to the electrical pad via solder to form an electrical interconnect. The semiconductor device assembly includes at least one dummy pillar extending from the second side of the first semiconductor device and a liquid positioned between an end of the dummy pillar and the dummy pad. The surface tension of the liquid pulls the dummy pillar towards the dummy pad. The surface tension may reduce or minimize a warpage of the semiconductor device assembly and/or align the dummy pillar and the dummy pad.

    INDUCTIVE TESTING PROBE APPARATUS FOR TESTING SEMICONDUCTOR DIE AND RELATED SYSTEMS AND METHODS

    公开(公告)号:US20210041495A1

    公开(公告)日:2021-02-11

    申请号:US17083193

    申请日:2020-10-28

    Abstract: A testing probe apparatus for testing die. The testing probe may include a probe interface and a carrier for supporting at least one die comprising 3D interconnect (3DI) structures. The probe interface may be positionable on a first side of the at least one die and include a voltage source and at least one first inductor operably coupled to the voltage source. A voltage sensor and at least one second inductor coupled to the voltage sensor may be disposed on a second opposing side of the at least one die. The voltage source of the probe interface may be configured to inductively cause a voltage within the 3DI structures of the at least one die via the at least one first inductor. The voltage sensor may be configured to sense a voltage within the at least one 3DI structure via the at least one second inductor. Related systems and methods are also disclosed.

    SYSTEMS AND METHODS FOR FORMING SEMICONDUCTOR CUTTING/TRIMMING BLADES

    公开(公告)号:US20200206869A1

    公开(公告)日:2020-07-02

    申请号:US16237051

    申请日:2018-12-31

    Abstract: A dressing board for sharpening and/or shaping blades for manufacture of semiconductor devices can include a working surface configured to sharpen and/or shape a cutting surface of a dicing or edging blade for manufacture of a semiconductor device. The working surface can be configured to contact the cutting surface of the blade when sharpening or shaping the cutting surface. The dressing board can include a support substrate configured to support the working surface with respect to a floor of an enclosure in which the dressing board is positioned. In some embodiments, the working surface includes a first portion that is not parallel to the floor.

    Die Features for Self-Alignment During Die Bonding

    公开(公告)号:US20200083178A1

    公开(公告)日:2020-03-12

    申请号:US16127769

    申请日:2018-09-11

    Abstract: A semiconductor device assembly that includes a substrate having a first side and a second side, the first side having at least one dummy pad and at least one electrical pad. The semiconductor device assembly includes a first semiconductor device having a first side and a second side and at least one electrical pillar extending from the second side. The electrical pillar is connected to the electrical pad via solder to form an electrical interconnect. The semiconductor device assembly includes at least one dummy pillar extending from the second side of the first semiconductor device and a liquid positioned between an end of the dummy pillar and the dummy pad. The surface tension of the liquid pulls the dummy pillar towards the dummy pad. The surface tension may reduce or minimize a warpage of the semiconductor device assembly and/or align the dummy pillar and the dummy pad.

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