Successful and easy method to remove polysilicon film
    11.
    发明授权
    Successful and easy method to remove polysilicon film 失效
    成功和简单的方法去除多晶硅膜

    公开(公告)号:US06703320B1

    公开(公告)日:2004-03-09

    申请号:US10036898

    申请日:2002-01-04

    申请人: Shao-Yen Ku

    发明人: Shao-Yen Ku

    IPC分类号: H01L21302

    CPC分类号: H01L21/32131

    摘要: A method for removing a polysilicon layer from a non-silicon layer comprising the following steps. A structure having a non-silicon layer formed thereover is provided. A first polysilicon layer is formed upon the non-silicon layer. The first polysilicon layer is removed from over the non-silicon layer to expose the non-silicon layer using a NH4OH:DIW dip solution process having a NH4OH:DIW ratio of from about 1:2 to 1:8. Whereby the non-silicon layer is substantially unaffected by the NH4OH:DIW dip solution process.

    摘要翻译: 一种从非硅层去除多晶硅层的方法,包括以下步骤。 提供了一种其上形成有非硅层的结构。 在非硅层上形成第一多晶硅层。 使用具有约1:2至1:8的NH 4 OH:DIW比的NH 4 OH:DIW浸渍方法从非硅层上除去第一多晶硅层以暴露非硅层。 由此,非硅层基本上不受NH4OH:DIW浸渍溶液过程的影响。

    CLEANING PROCESS FOR SEMICONDUCTOR DEVICE FABRICATION
    13.
    发明申请
    CLEANING PROCESS FOR SEMICONDUCTOR DEVICE FABRICATION 有权
    用于半导体器件制造的清洁工艺

    公开(公告)号:US20120202156A1

    公开(公告)日:2012-08-09

    申请号:US13022931

    申请日:2011-02-08

    IPC分类号: G03F7/20

    摘要: A method of making an integrated circuit is provided. The method includes providing a substrate having a photosensitive layer. The photosensitive layer is exposed to a radiation beam. The exposed photosensitive layer is developed in a first chamber. In the first chamber, a cleaning process is performed on the developed photosensitive layer. The cleaning process includes using a rinse solution including at least one of ozone, hydrogen peroxide, and oxalic acid.

    摘要翻译: 提供一种制造集成电路的方法。 该方法包括提供具有感光层的基底。 感光层暴露于辐射束。 曝光的感光层在第一室中显影。 在第一室中,对显影的感光层进行清洁处理。 清洁方法包括使用包括臭氧,过氧化氢和草酸中的至少一种的冲洗溶液。

    Method of fabricating high-k metal gate devices
    15.
    发明授权
    Method of fabricating high-k metal gate devices 有权
    制造高k金属栅极器件的方法

    公开(公告)号:US07776757B2

    公开(公告)日:2010-08-17

    申请号:US12354394

    申请日:2009-01-15

    IPC分类号: H01L21/302

    摘要: The present disclosure provides a method for fabricating a semiconductor device. The method includes providing a semiconductor substrate having a first region and a second region, forming a high-k dielectric layer over the semiconductor substrate, forming a first metal layer and a first silicon layer by an in-situ deposition process, patterning the first silicon layer to remove a portion overlying the second region, patterning the first metal layer using the patterned first silicon layer as a mask, and removing the patterned first silicon layer including applying a solution. The solution includes a first component having an [F-] concentration greater than 0.01M, a second component configured to adjust a pH of the solution from about 4.3 to about 6.7, and a third component configured to adjust a potential of the solution to be greater than −1.4 volts.

    摘要翻译: 本公开提供了一种用于制造半导体器件的方法。 该方法包括提供具有第一区域和第二区域的半导体衬底,在半导体衬底上形成高k电介质层,通过原位沉积工艺形成第一金属层和第一硅层,图案化第一硅 以去除覆盖在第二区域上的部分,使用图案化的第一硅层作为掩模来图案化第一金属层,以及去除图案化的第一硅层,包括施加溶液。 该溶液包括具有大于0.01M的[F-]浓度的第一组分,构成为将溶液的pH调节至约4.3至约6.7的第二组分,以及构成为将溶液的电位调节为 大于-1.4伏。

    Nitride film wet stripping
    19.
    发明授权
    Nitride film wet stripping 有权
    氮化膜湿剥

    公开(公告)号:US08105851B1

    公开(公告)日:2012-01-31

    申请号:US12889167

    申请日:2010-09-23

    IPC分类号: H01L21/66

    摘要: Provided is a method of removing a nitride material from a semiconductor wafer. The method includes monitoring a silicon concentration level in a chemical solution. The chemical solution may include a phosphoric acid. The method includes adjusting the silicon concentration level in response to the monitoring. The method includes heating the chemical solution. The method includes applying the heated chemical solution to a wafer surface in a manner so that a temperature of the heated chemical solution is within a predefined temperature range throughout the wafer surface. The method includes etching a nitride material of the wafer using the heated chemical solution.

    摘要翻译: 提供从半导体晶片去除氮化物材料的方法。 该方法包括监测化学溶液中的硅浓度水平。 化学溶液可以包括磷酸。 该方法包括响应于监测调整硅浓度水平。 该方法包括加热化学溶液。 该方法包括将加热的化学溶液以使得加热的化学溶液的温度在整个晶片表面的预定温度范围内的方式施加到晶片表面。 该方法包括使用加热的化学溶液蚀刻晶片的氮化物材料。