SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20240237331A1

    公开(公告)日:2024-07-11

    申请号:US18350427

    申请日:2023-07-11

    CPC classification number: H10B12/315 H01L29/42356 H10B12/03 H10B12/482

    Abstract: A semiconductor device includes a substrate including a cell array region and a core region disposed around the cell array region; a plurality of storage element contacts; a contact plug; and a contact plug spacer. The plurality of storage element contacts may include a first storage element contact and at least one second storage element contact, the first storage element contact is a closest storage element contact of the plurality of storage element contacts to the core region, such that the first storage element contact is between the core region and the at least one second storage element contact. A step difference in a vertical direction perpendicular to the substrate between a top surface of the first storage element contact and a top surface of the at least one second storage element contact is 5 nm or less.

    METHOD OF FABRICATING A SEMICONDUCTOR DEVICE

    公开(公告)号:US20210050221A1

    公开(公告)日:2021-02-18

    申请号:US16863244

    申请日:2020-04-30

    Abstract: A method of fabricating a semiconductor device including preparing a substrate including a wafer inner region and a wafer edge region, the wafer inner region including a chip region and a scribe lane region, sequentially stacking a mold layer and a supporting layer on the substrate, forming a first mask layer on the supporting layer, the first mask layer including a first stepped region on the wafer edge region, forming a step-difference compensation pattern on the first stepped region, forming a second mask pattern including openings, on the first mask layer and the step-difference compensation pattern, and sequentially etching the first mask layer, the supporting layer, and the mold layer using the second mask pattern as an etch mask to form a plurality of holes in at least the mold layer may be provided.

    METHOD OF FABRICATING SEMICONDUCTOR DEVICE
    5.
    发明公开

    公开(公告)号:US20240280895A1

    公开(公告)日:2024-08-22

    申请号:US18381773

    申请日:2023-10-19

    CPC classification number: G03F1/70 H01L21/027 H10B12/315

    Abstract: A method of fabricating a semiconductor device may include forming a target pattern on a first wafer by performing a first exposure process, measuring a misalignment value of the target pattern, calculating a block misalignment value and a pattern misalignment value based on the misalignment value, calculating a block correction value based on the block misalignment value and calculating a pattern correction value based on the pattern misalignment value, and performing a second exposure process on a second wafer, based on the block correction value and the pattern correction value.

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