SEMICONDUCTOR DEVICES
    1.
    发明公开

    公开(公告)号:US20240040772A1

    公开(公告)日:2024-02-01

    申请号:US18332413

    申请日:2023-06-09

    CPC classification number: H10B12/482 H10B12/0335 H10B12/315

    Abstract: A semiconductor device may include a bit line structure, a first spacer, and a second spacer on a substrate. The bit line structure may include a conductive structure and an insulation structure stacked in a vertical direction substantially perpendicular to an upper surface of the substrate. The first spacer and the second spacer may be stacked in a horizontal direction on a sidewall of the bit line structure. The horizontal direction may be substantially parallel to the upper surface of the substrate. The conductive structure may include a nitrogen-containing conductive portion at a lateral portion thereof. The first spacer may contact the nitrogen-containing conductive portion.

    METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE INCLUDING AIR GAP

    公开(公告)号:US20220093387A1

    公开(公告)日:2022-03-24

    申请号:US17222195

    申请日:2021-04-05

    Abstract: A semiconductor device manufacturing method includes loading a semiconductor substrate into a chamber, the semiconductor substrate including a silicon oxide film, depositing a seed layer on the silicon oxide film by supplying a first silicon source material, supplying a purge gas on the seed layer, depositing a protective layer on the seed layer by repeating a first cycle, the first cycle including supplying a base source material layer and subsequently supplying the first silicon source material, and depositing a silicon nitride film on the protective layer by repeating a second cycle, the second cycle including supplying a second silicon source material and subsequently supplying a nitrogen source material.

    DRAM DEVICE INCLUDING AN AIR GAP AND A SEALING LAYER

    公开(公告)号:US20220246620A1

    公开(公告)日:2022-08-04

    申请号:US17723218

    申请日:2022-04-18

    Abstract: A DRAM device includes an isolation region defining source and drain regions in a substrate, a first bit line structure connected to the source region, a second bit line structure disposed on the isolation region, an inner spacer vertically extending on a first sidewall of the first bit line structure, an air gap is between the inner spacer and an outer spacer, a storage contact between the first and second bit line structures and connected to the drain region, a landing pad structure vertically on the storage contact, and a storage structure vertically on the landing pad structure. The sealing layer seals a top of the first air gap. The sealing layer includes a first sealing layer on a first sidewall of a pad isolation trench, and a second sealing layer on a second sidewall of the pad isolation trench and separated from the first sealing layer.

    DRAM DEVICE INCLUDING AN AIR GAP AND A SEALING LAYER

    公开(公告)号:US20210066304A1

    公开(公告)日:2021-03-04

    申请号:US16837274

    申请日:2020-04-01

    Abstract: A DRAM device includes an isolation region defining source and drain regions in a substrate, a first bit line structure connected to the source region, a second bit line structure disposed on the isolation region, an inner spacer vertically extending on a first sidewall of the first bit line structure, an air gap is between the inner spacer and an outer spacer, a storage contact between the first and second bit line structures and connected to the drain region, a landing pad structure vertically on the storage contact, and a storage structure vertically on the landing pad structure. The sealing layer seals a top of the first air gap. The sealing layer includes a first sealing layer on a first sidewall of a pad isolation trench, and a second sealing layer on a second sidewall of the pad isolation trench and separated from the first sealing layer.

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