METHOD OF MAKING LEADFRAME STRIP
    1.
    发明申请

    公开(公告)号:US20210005540A1

    公开(公告)日:2021-01-07

    申请号:US17028843

    申请日:2020-09-22

    Abstract: A leadframe strip for use in making leaded integrated circuit packages includes a plurality of integrally connected leadframes that each have a die attach pad and first and second dam bars located adjacent to opposite first and second sides of the die attach pad, respectively. A plurality of continuous lead structures extend, uninterrupted by other structure, between opposing ones of the dam bars of horizontally adjacent leadframes. The plurality of integrally connected leadframes are arranged in a plurality of vertical columns, wherein die attach pads in one vertical column are vertically offset from die attach pads in adjacent vertical columns.

    Method of making leadframe strip
    6.
    发明授权

    公开(公告)号:US11373940B2

    公开(公告)日:2022-06-28

    申请号:US17028843

    申请日:2020-09-22

    Abstract: A leadframe strip for use in making leaded integrated circuit packages includes a plurality of integrally connected leadframes that each have a die attach pad and first and second dam bars located adjacent to opposite first and second sides of the die attach pad, respectively. A plurality of continuous lead structures extend, uninterrupted by other structure, between opposing ones of the dam bars of horizontally adjacent leadframes. The plurality of integrally connected leadframes are arranged in a plurality of vertical columns, wherein die attach pads in one vertical column are vertically offset from die attach pads in adjacent vertical columns.

    STACKED SEMICONDUCTOR SYSTEM HAVING INTERPOSER OF HALF-ETCHED AND MOLDED SHEET METAL

    公开(公告)号:US20200091111A1

    公开(公告)日:2020-03-19

    申请号:US16688905

    申请日:2019-11-19

    Abstract: A semiconductor system (900) has a flat interposer (510) with a first surface (401a) in a first plane, a second surface (401b) in a parallel second plane, and a uniform first height (401) between the surfaces; the interposer is patterned in metallic zones separated by gaps (412, 415), the zones include metal of the first height and metal of a second height (402) smaller than the first height; an insulating material fills the gaps and the zone differences between the first and the second heights. Semiconductor chips of a first (610) and a second (611) set have first terminals attached to metallic zones of the first interposer surface while the chips of the second set have their second terminals facing away from the interposer. A first leadframe (700) is attached to the second terminals of the second set chips, and a second leadframe (800) is attached to respective metallic zones of the second interposer surface.

    Method of making leadframe strip
    10.
    发明授权

    公开(公告)号:US10784190B2

    公开(公告)日:2020-09-22

    申请号:US15680499

    申请日:2017-08-18

    Abstract: A leadframe strip for use in making leaded integrated circuit packages includes a plurality of integrally connected leadframes that each have a die attach pad and first and second dam bars located adjacent to opposite first and second sides of the die attach pad, respectively. A plurality of continuous lead structures extend, uninterrupted by other structure, between opposing ones of the dam bars of horizontally adjacent leadframes. The plurality of integrally connected leadframes are arranged in a plurality of vertical columns, wherein die attach pads in one vertical column are vertically offset from die attach pads in adjacent vertical columns.

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