Method for removing hard mask oxide and making gate structure of semiconductor devices
    4.
    发明授权
    Method for removing hard mask oxide and making gate structure of semiconductor devices 有权
    去除硬掩模氧化物并制造半导体器件的栅极结构的方法

    公开(公告)号:US09337103B2

    公开(公告)日:2016-05-10

    申请号:US13707769

    申请日:2012-12-07

    CPC classification number: H01L21/823437

    Abstract: A method includes forming a first gate above a semiconductor substrate, forming a hard mask on the first gate, and forming a contact etch stop layer (CESL) on the hard mask. No hard mask is removed between the step of forming the hard mask and the step of forming the CESL. The method further includes forming an interlayer dielectric (ILD) layer over the CESL, and performing one or more CMP processes to planarize the ILD layer, remove the CESL on the hard mask, and remove at least one portion of the hard mask.

    Abstract translation: 一种方法包括在半导体衬底上形成第一栅极,在第一栅极上形成硬掩模,以及在硬掩模上形成接触蚀刻停止层(CESL)。 在形成硬掩模的步骤和形成CESL的步骤之间没有去除硬掩模。 该方法还包括在CESL上形成层间电介质层(ILD)层,以及执行一个或多个CMP工艺以使ILD层平坦化,去除硬掩模上的CESL,以及去除硬掩模的至少一部分。

    Simplified Carrier Removable by Reduced Number of CMP Processes

    公开(公告)号:US20220395953A1

    公开(公告)日:2022-12-15

    申请号:US17455116

    申请日:2021-11-16

    Abstract: A method includes bonding a first package component on a composite carrier, and performing a first polishing process on the composite carrier to remove a base carrier of the composite carrier. The first polishing process stops on a first layer of the composite carrier. A second polishing process is performed to remove the first layer of the composite carrier. The second polishing process stops on a second layer of the composite carrier. A third polishing process is performed to remove a plurality of layers in the composite carrier. The plurality of layers include the second layer, and the third polishing process stops on a dielectric layer in the first package component.

    Method of high-aspect ratio pattern formation with submicron pixel pitch

    公开(公告)号:US10546889B2

    公开(公告)日:2020-01-28

    申请号:US16180390

    申请日:2018-11-05

    Abstract: Implementations of the disclosure provide a method of fabricating an image sensor device. The method includes forming first trenches in a first photoresist layer using a first photomask having a first pattern to expose a first surface of a substrate, directing ions into the exposed first substrate through the first trenches to form first isolation regions in the substrate, removing the first photoresist layer, forming second trenches in a second photoresist layer using a second photomask having a second pattern to expose a second surface of the substrate, the second pattern being shifted diagonally from the first pattern by half mask pitch, directing ions into the exposed second surface through the second trenches to form second isolation regions in the substrate, the first and second isolation regions being alternatingly disposed in the substrate, and the first and second isolation regions defining pixel regions therebetween, and removing the second photoresist layer.

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