Methods and apparatus for hierarchical bitline for three-dimensional dynamic random-access memory

    公开(公告)号:US12207458B2

    公开(公告)日:2025-01-21

    申请号:US17680993

    申请日:2022-02-25

    Abstract: Methods for forming 3D DRAM leverage L-pad formations to increase memory density. Methods may include etching a substrate to form two Si walls oriented parallel to each other and forming a space therebetween, depositing a plurality of alternating Si layers and SiGe layers using epitaxial growth processes to form horizontal deposition layers on the space between the two Si walls and vertical deposition layers on sidewalls of the two Si walls, depositing a CMP stop layer on the substrate, planarizing the substrate to the CMP stop layer, removing a portion of a top of the two Si walls and forming an L-pad formation, deep etching a pattern of holes into the space between the two Si walls in horizontal portions of the plurality of alternating Si layers and SiGe layers, and forming vertical wordline structures from the pattern of holes in the horizontal portions.

    Boron concentration tunability in boron-silicon films

    公开(公告)号:US12205818B2

    公开(公告)日:2025-01-21

    申请号:US18606060

    申请日:2024-03-15

    Abstract: Embodiments of the present technology include semiconductor processing methods to make boron-and-silicon-containing layers that have a changing atomic ratio of boron-to-silicon. The methods may include flowing a silicon-containing precursor into a substrate processing region of a semiconductor processing chamber, and also flowing a boron-containing precursor and molecular hydrogen (H2) into the substrate processing region of the semiconductor processing chamber. The boron-containing precursor and the H2 may be flowed at a boron-to-hydrogen flow rate ratio. The flow rate of the boron-containing precursor and the H2 may be increased while the boron-to-hydrogen flow rate ratio remains constant during the flow rate increase. The boron-and-silicon-containing layer may be deposited on a substrate, and may be characterized by a continuously increasing ratio of boron-to-silicon from a first surface in contact with the substrate to a second surface of the boron-and-silicon-containing layer furthest from the substrate.

    GLOBAL COLOR CORRECTION FOR OPTICAL SYSTEM

    公开(公告)号:US20250020921A1

    公开(公告)日:2025-01-16

    申请号:US18769069

    申请日:2024-07-10

    Inventor: Jinxin FU Sihui HE

    Abstract: Embodiments described herein relate to an augmented reality (AR) system. The AR system includes a projection system and an optical device. The projection system includes a backlight, a lens, and an illumination system. The illumination system is configured to receive light from the backlight and emit light having a first color trend. The light having a first color trend is emitted through the lens towards the optical device. The optical device is configured to form a second color trend. The second color trend is opposite the first color trend.

    COOLING FRAME FOR DIFFUSER
    138.
    发明申请

    公开(公告)号:US20250019824A1

    公开(公告)日:2025-01-16

    申请号:US18717165

    申请日:2021-12-06

    Abstract: Exemplary substrate processing chambers may include a chamber body defining a processing region. The chambers may include a backing plate disposed atop the chamber body, a diffuser above the processing region and supported by the backing plate, and a cooling frame disposed between the backing plate and the diffuser. The cooling frame may be coupled with the diffuser. The cooling frame may include a body having one or more fluid inlets and one or more fluid outlets. The body may define an opening. The fluid inlets may be in fluid communication with the one or more fluid outlets via one or more fluid lumens that each extend at least partially about a periphery of the opening. The fluid inlets may be in fluid communication with one or more fluid supply lumens. The fluid outlets may be in fluid communication with one or more fluid return lumens.

    Systems and methods for depositing low-k dielectric films

    公开(公告)号:US12198925B2

    公开(公告)日:2025-01-14

    申请号:US18074849

    申请日:2022-12-05

    Abstract: Exemplary methods of forming a silicon-and-carbon-containing material may include flowing a silicon-and-carbon-containing precursor into a processing region of a semiconductor processing chamber. A substrate may be housed within the processing region of the semiconductor processing chamber. The methods may include forming a plasma within the processing region of the silicon-and-carbon-containing precursor. The plasma may be formed at a frequency above 15 MHz. The methods may include depositing a silicon-and-carbon-containing material on the substrate. The silicon-and-carbon-containing material as-deposited may be characterized by a dielectric constant below or about 3.0.

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