FORMING SHALLOW TRENCH FOR DICING AND STRUCTURES THEREOF

    公开(公告)号:US20240413102A1

    公开(公告)日:2024-12-12

    申请号:US18462499

    申请日:2023-09-07

    Abstract: A method includes etching a portion of a wafer to form a first trench in a scribe line of the wafer, wherein the scribe line is between a first device die and a second device die of the wafer. After the etching, a top surface of the portion of wafer in the scribe line is underlying and exposed to the first trench, and the first trench is between opposing sidewalls of the wafer. A laser grooving process is then performed to form a second trench extending from the top surface further down into the wafer, and the second trench is laterally between the opposing sidewalls of the wafer. A die-saw process is then performed to saw the wafer. The die-saw process is performed from a bottom of the second trench, and the die-saw process results in the first device die to be separated from the second device die.

    DIE STITCHING FOR STACKING ARCHITECTURE IN SEMICONDUCTOR PACKAGES

    公开(公告)号:US20240421077A1

    公开(公告)日:2024-12-19

    申请号:US18506641

    申请日:2023-11-10

    Abstract: A package device for 3D stacking of integrated circuits includes a semiconductor substrate, and an interconnect structure on the semiconductor substrate. The interconnect structure is organized into a plurality of device regions, and the device has a first seal ring extending vertically through the interconnect structure in a first device region, and a second seal ring extending vertically through the interconnect structure in a second device region. The interconnect structure also includes a conductive line electrically connecting a metallization pattern within the first seal ring to a second metallization pattern within the second seal ring, wherein the first horizontally extending conductive line extends through the first seal ring and the second seal ring.

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