METHODS FOR REMOVING PHOTORESIST FROM A SEMICONDUCTOR SUBSTRATE
    2.
    发明申请
    METHODS FOR REMOVING PHOTORESIST FROM A SEMICONDUCTOR SUBSTRATE 审中-公开
    从半导体基板上去除光电离元件的方法

    公开(公告)号:US20080102644A1

    公开(公告)日:2008-05-01

    申请号:US11554709

    申请日:2006-10-31

    CPC classification number: G03F7/427

    Abstract: Methods for removing photoresist from a semiconductor substrate are provided. In accordance with an exemplary embodiment of the invention, a method for removing a photoresist from a semiconductor substrate comprises the steps of exposing the semiconductor substrate and the photoresist to a first plasma formed from oxygen, forming an oxide layer on exposed regions of the semiconductor substrate, and subjecting the photoresist to a second plasma formed from oxygen and a fluorine-comprising gas, wherein the first plasma is not the second plasma.

    Abstract translation: 提供了从半导体衬底去除光致抗蚀剂的方法。 根据本发明的示例性实施例,从半导体衬底去除光致抗蚀剂的方法包括以下步骤:将半导体衬底和光致抗蚀剂暴露于由氧形成的第一等离子体,在半导体衬底的暴露区域上形成氧化物层 并且对所述光致抗蚀剂进行由氧和含氟气体形成的第二等离子体,其中所述第一等离子体不是所述第二等离子体。

    Process modulation to prevent structure erosion during gap fill
    3.
    发明授权
    Process modulation to prevent structure erosion during gap fill 有权
    过程调制以防止间隙填充期间的结构侵蚀

    公开(公告)号:US07217658B1

    公开(公告)日:2007-05-15

    申请号:US10935909

    申请日:2004-09-07

    Abstract: High density plasma chemical vapor deposition and etch back processes fill high aspect ratio gaps without liner erosion or further underlying structure attack. The characteristics of the deposition process are modulated such that the deposition component of the process initially dominates the sputter component of the process. For example, reactive gasses are introduced in a gradient fashion into the HDP reactor and introduction of bias power onto the substrate is delayed and gradually increased or reactor pressure is decreased. In the case of a multi-step etch enhanced gap fill process, the invention may involve gradually modulating deposition and etch components during transitions between process steps. By carefully controlling the transitions between process steps, including the introduction of reactive species into the HDP reactor and the application of source and bias power onto the substrate, structure erosion is prevented.

    Abstract translation: 高密度等离子体化学气相沉积和回蚀工艺可以填充高纵横比间隙,无需衬垫侵蚀或进一步的基础结构攻击。 调制沉积工艺的特性使得该工艺的沉积组分最初主导该工艺的溅射部件。 例如,反应性气体以梯度方式引入HDP反应器中,并且将偏置功率引入到衬底上被延迟并逐渐增加或反应器压力降低。 在多步骤蚀刻增强的间隙填充工艺的情况下,本发明可以涉及在工艺步骤之间的过渡期间逐渐调制沉积和蚀刻部件。 通过仔细控制工艺步骤之间的转变,包括将活性物质引入HDP反应器中,以及将源和偏置功率施加到衬底上,防止结构侵蚀。

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