Methods and apparatuses for drying wafer

    公开(公告)号:US07000621B1

    公开(公告)日:2006-02-21

    申请号:US11009267

    申请日:2004-12-10

    Abstract: Apparatuses and methods of processing a substrate. The apparatus includes a wet-cleaning chamber, a drying chamber, and a substrate transferring chamber which transfers a substrate to and from the wet-cleaning chamber and the drying chamber. The drying chamber is one of a supercritical drying chamber or a low pressure drying chamber. The wet-cleaning chamber is one of a single-wafer cleaning chamber, a horizontal spinning chamber, a megasonic wet-cleaning chamber, or a horizontal spinning chamber having acoustic waves transmitted to the substrate.

    Using supercritical fluids and/or dense fluids in semiconductor applications
    135.
    发明申请
    Using supercritical fluids and/or dense fluids in semiconductor applications 审中-公开
    在半导体应用中使用超临界流体和/或致密流体

    公开(公告)号:US20050191861A1

    公开(公告)日:2005-09-01

    申请号:US11038456

    申请日:2005-01-18

    Abstract: Embodiments of the present invention generally relate to methods and apparatuses using supercritical fluids and/or dense fluids in semiconductor applications. In one embodiment, a substrate structure is dried by applying a supercritical fluid, a dense fluid, or combinations thereof. In another embodiment, a substrate structure is cleaned by applying a supercritical fluid, a dense fluid, or combinations thereof. In still another embodiment, a low-k material layer is repaired by applying a supercritical fluid, a dense fluid, or combinations thereof. In yet another embodiment, a photoresist layer is stripped by applying a supercritical fluid, a dense fluid, or combinations thereof. In another embodiment, a porous low-k material layer is deposited by applying a supercritical fluid, a dense fluid, or combinations thereof.

    Abstract translation: 本发明的实施例一般涉及在半导体应用中使用超临界流体和/或致密流体的方法和装置。 在一个实施方案中,通过施加超临界流体,致密流体或其组合来干燥基底结构。 在另一个实施方案中,通过施加超临界流体,致密流体或其组合来清洁基底结构。 在又一实施例中,通过施加超临界流体,致密流体或其组合来修复低k材料层。 在另一个实施例中,通过施加超临界流体,致密流体或其组合来剥离光致抗蚀剂层。 在另一个实施方案中,通过施加超临界流体,致密流体或其组合来沉积多孔低k材料层。

    Methods and systems for determining chemical concentrations and controlling the processing of semiconductor substrates
    137.
    发明授权
    Methods and systems for determining chemical concentrations and controlling the processing of semiconductor substrates 失效
    用于确定化学浓度并控制半导体衬底加工的方法和系统

    公开(公告)号:US06261845B1

    公开(公告)日:2001-07-17

    申请号:US09257488

    申请日:1999-02-25

    Abstract: The present invention provides systems and methods of determining the concentration of chemicals in a wet processing stream where the wet processing stream is formed from two or more liquid streams having known chemical concentrations. The concentration of chemicals in the wet processing stream are monitored by measuring the flow rates of the liquid streams during combination to form the wet processing stream, and calculating the concentrations of chemicals in the wet processing stream based on the flow rates and known chemical concentrations of the liquid streams. The present invention also provides systems and methods for controlling the wet processing of semiconductor substrates using the calculated concentrations in the wet processing stream. The methods and systems of the present invention are particularly useful when the semiconductor substrates are contacted with the wet processing stream in a single pass.

    Abstract translation: 本发明提供了确定湿处理流中化学品浓度的系统和方法,其中湿处理流由具有已知化学浓度的两个或多个液体流形成。 通过在组合期间测量液体流的流量以形成湿处理流来监测湿处理流中的化学品浓度,并且基于流速和已知化学浓度计算湿处理流中化学品的浓度 液体流。 本发明还提供了使用湿处理流中计算的浓度来控制半导体衬底的湿法处理的系统和方法。 当半导体衬底在一次通过湿式处理流体接触时,本发明的方法和系统特别有用。

    Method for sulfuric acid resist stripping
    138.
    发明授权
    Method for sulfuric acid resist stripping 失效
    硫酸抗剥离方法

    公开(公告)号:US6032682A

    公开(公告)日:2000-03-07

    申请号:US881267

    申请日:1997-06-24

    Abstract: The present invention provides methods for efficiently cleaning semiconductor wafers, and particularly for removing photoresist material from the surfaces of semiconductor wafers, using a mixture of sulfuric acid and hydrogen peroxide. In accordance with the present invention, an initial sulfuric acid-based photoresist stripping bath, either being pure sulfuric acid or a sulfuric acid:hydrogen peroxide mixture with a ratio of at least 15:0.3, based on the anhydrous chemical substances, is prepared for processing an initial batch of wafers. During the processing of the semiconductor wafers, hydrogen peroxide is added to the bath solution at a controlled rate of between about 0.015-1.5 g H.sub.2 O.sub.2 (anhydrous basis)/min./liter of photoresist bath solution. In such a way, the conversion of hydrogen peroxide to Caro's acid is optimized resulting in an extended bath life and conservation of hydrogen peroxide.

    Abstract translation: 本发明提供了使用硫酸和过氧化氢的混合物有效地清洁半导体晶片,特别是用于从半导体晶片的表面去除光致抗蚀剂材料的方法。 根据本发明,制备基于无水化学物质的初始硫酸类光致抗蚀剂剥离浴,其为纯硫酸或比例至少为15:0.3的硫酸:过氧化氢混合物,用于 处理初始批次的晶圆。 在半导体晶片的加工期间,过氧化氢以约0.015-1.5g H 2 O 2(无水基)/分/分光刻胶浴溶液的控制速率加入到浴溶液中。 以这种方式,过氧化氢向卡罗酸的转化被优化,导致延长的浴寿命和过氧化氢的保存。

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