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    • 3. 发明授权
    • Selective suppression of dry-etch rate of materials containing both silicon and nitrogen
    • 选择性抑制含有硅和氮的材料的干蚀刻速率
    • US08679983B2
    • 2014-03-25
    • US13449441
    • 2012-04-18
    • Yunyu WangAnchuan WangJingchun ZhangNitin K. IngleYoung S. Lee
    • Yunyu WangAnchuan WangJingchun ZhangNitin K. IngleYoung S. Lee
    • H01L21/302B44C1/22
    • H01L21/3065H01J37/32357H01J37/32449H01L21/32137
    • A method of suppressing the etch rate for exposed silicon-and-nitrogen-containing material on patterned heterogeneous structures is described and includes a two stage remote plasma etch. The etch selectivity of silicon relative to silicon nitride and other silicon-and-nitrogen-containing material is increased using the method. The first stage of the remote plasma etch reacts plasma effluents with the patterned heterogeneous structures to form protective solid by-product on the silicon-and-nitrogen-containing material. The plasma effluents of the first stage are formed from a remote plasma of a combination of precursors, including nitrogen trifluoride and hydrogen (H2). The second stage of the remote plasma etch also reacts plasma effluents with the patterned heterogeneous structures to selectively remove material which lacks the protective solid by-product. The plasma effluents of the second stage are formed from a remote plasma of a fluorine-containing precursor.
    • 描述了抑制图案化异质结构上暴露的含硅和氮的材料的蚀刻速率的方法,并且包括两级远程等离子体蚀刻。 使用该方法,硅相对于氮化硅和其它含硅和氮的材料的蚀刻选择性增加。 远程等离子体蚀刻的第一阶段使等离子体流出物与图案化的异质结构反应,以在含硅和氮的材料上形成保护性固体副产物。 第一级的等离子体流出物由包括三氟化氮和氢气(H 2)在内的前体组合的远程等离子体形成。 远程等离子体蚀刻的第二阶段还使等离子体流出物与图案化的异质结构反应,以选择性地去除缺乏保护性固体副产物的材料。 第二级的等离子体流出物由含氟前体的远程等离子体形成。
    • 4. 发明授权
    • Selective suppression of dry-etch rate of materials containing both silicon and oxygen
    • 选择性抑制含有硅和氧的材料的干蚀刻速率
    • US08679982B2
    • 2014-03-25
    • US13449543
    • 2012-04-18
    • Yunyu WangAnchuan WangJingchun ZhangNitin K. IngleYoung S. Lee
    • Yunyu WangAnchuan WangJingchun ZhangNitin K. IngleYoung S. Lee
    • H01L21/311
    • H01L21/31116H01J37/32357H01L21/3065H01L21/32137
    • A method of suppressing the etch rate for exposed silicon-and-oxygen-containing material on patterned heterogeneous structures is described and includes a two stage remote plasma etch. Examples of materials whose selectivity is increased using this technique include silicon nitride and silicon. The first stage of the remote plasma etch reacts plasma effluents with the patterned heterogeneous structures to form protective solid by-product on the silicon-and-oxygen-containing material. The plasma effluents of the first stage are formed from a remote plasma of a combination of precursors, including a nitrogen-containing precursor and a hydrogen-containing precursor. The second stage of the remote plasma etch also reacts plasma effluents with the patterned heterogeneous structures to selectively remove material which lacks the protective solid by-product. The plasma effluents of the second stage are formed from a remote plasma of a fluorine-containing precursor.
    • 描述了抑制图案化异质结构上暴露的含硅和氧的材料的蚀刻速率的方法,并且包括两级远程等离子体蚀刻。 使用该技术提高其选择性的材料的实例包括氮化硅和硅。 远程等离子体蚀刻的第一阶段使等离子体流出物与图案化的异质结构反应,以在含硅和氧的材料上形成保护性固体副产物。 第一级的等离子体流出物由包括含氮前体和含氢前体的前体组合的远程等离子体形成。 远程等离子体蚀刻的第二阶段还使等离子体流出物与图案化的异质结构反应,以选择性地去除缺乏保护性固体副产物的材料。 第二级的等离子体流出物由含氟前体的远程等离子体形成。
    • 5. 发明授权
    • Integrated process modulation for PSG gapfill
    • 用于PSG填隙的集成过程调制
    • US08497211B2
    • 2013-07-30
    • US13490426
    • 2012-06-06
    • Young S. LeeAnchuan WangLan Chia ChanShankar Venkataraman
    • Young S. LeeAnchuan WangLan Chia ChanShankar Venkataraman
    • H01L21/311
    • C23C16/56C23C16/045C23C16/401H01L21/02129H01L21/02274H01L21/0234H01L21/76224
    • A method of depositing a phosphosilicate glass (PSG) film on a substrate disposed in a substrate processing chamber includes depositing a first portion of the PSG film over the substrate using a high-density plasma process. Thereafter, a portion of the first portion of the PSG film may be etched back. The etch back process may include flowing a halogen precursor to the substrate processing chamber, forming a high-density plasma from the halogen precursor, and terminating flowing the halogen precursor after the etch back. The method also includes flowing a halogen scavenger to the substrate processing chamber to react with residual halogen in the substrate processing chamber, and exposing the first portion of the PSG film to a phosphorus-containing gas to provide a substantially uniform phosphorus concentration throughout the first portion of the PSG film.
    • 在设置在衬底处理室中的衬底上沉积磷硅玻璃(PSG)膜的方法包括使用高密度等离子体工艺在衬底上沉积第一部分PSG膜。 此后,PSG膜的第一部分的一部分可被回蚀刻。 回蚀工艺可以包括将卤素前体流动到衬底处理室,从卤素前体形成高密度等离子体,并且在回蚀刻之后使卤素前体终止流动。 该方法还包括使卤素清除剂流到衬底处理室以与衬底处理室中的残留卤素反应,并将PSG膜的第一部分暴露于含磷气体,以在整个第一部分中提供基本均匀的磷浓度 的PSG电影。
    • 7. 发明授权
    • High-throughput HDP-CVD processes for advanced gapfill applications
    • 高通量HDP-CVD工艺,适用于先进的填缝应用
    • US08414747B2
    • 2013-04-09
    • US11941263
    • 2007-11-16
    • Bo QiYoung S. Lee
    • Bo QiYoung S. Lee
    • C23C14/34
    • H01L21/02164C23C16/045C23C16/401C23C16/45523H01L21/02274H01L21/31612
    • Methods are provided of depositing a silicon oxide film on a substrate disposed in a substrate processing chamber. The substrate has a gap formed between adjacent raised surfaces. A silicon-containing gas, an oxygen-containing gas, and a fluent gas are flowed into the substrate processing chamber. The fluent gas has an average molecular weight less than 5 amu. A first high-density plasma is formed from the silicon-containing gas, the oxygen-containing gas, and the fluent gas to deposit a first portion of the silicon oxide film over the substrate and within the gap with a first deposition process that has simultaneous deposition and sputtering components having relative contributions defined by a first deposition/sputter ratio. A second high-density plasma is formed from the silicon-containing gas, the oxygen-containing gas, and the fluent gas to deposit a second portion of the silicon oxide film over the substrate and within the gap with a second deposition process that has simultaneous deposition and sputtering components having relative contributions defined by a second deposition/sputter ratio. The second deposition/sputter ratio is less than the first deposition/sputter ratio. Each of the first and second deposition/sputter ratios is defined as a ratio of a sum of a net deposition rate and a blanket sputtering rate to the blanket sputtering rate.
    • 提供了在设置在基板处理室中的基板上沉积氧化硅膜的方法。 基板在相邻的凸起表面之间形成间隙。 含硅气体,含氧气体和流动气体流入衬底处理室。 流动气体的平均分子量小于5 amu。 由含硅气体,含氧气体和流动气体形成第一高密度等离子体,以将第一部分氧化硅膜沉积在衬底上并且在间隙内,同时具有同时存在的第一沉积工艺 具有由第一沉积/溅射比限定的相对贡献的沉积和溅射部件。 由含硅气体,含氧气体和流动气体形成第二高密度等离子体,以将第二部分的氧化硅膜沉积在衬底上并在间隙内,同时具有同时存在的第二沉积工艺 沉积和溅射组分具有由第二沉积/溅射比定义的相对贡献。 第二沉积/溅射比小于第一沉积/溅射比。 第一和第二沉积/溅射比率中的每一个被定义为净沉积速率和覆盖溅射速率之和与覆盖溅射速率的比率。