Trilayer resist organic layer etch
    1.
    发明申请
    Trilayer resist organic layer etch 有权
    三层抗蚀剂有机层蚀刻

    公开(公告)号:US20080044995A1

    公开(公告)日:2008-02-21

    申请号:US11507862

    申请日:2006-08-21

    IPC分类号: H01L21/44

    CPC分类号: H01L21/76808

    摘要: A method of forming dual damascene features in a porous low-k dielectric layer is provided. Vias are formed in the porous low-k dielectric layer. An organic planarization layer is formed over the porous low-k dielectric layer, wherein the organic layer fills the vias. A photoresist mask is formed over the organic planarization layer. Features are etched into the organic planarization layer comprising providing a CO2 containing etch gas and forming a plasma from the CO2 containing etch gas, which etches the organic planarization layer. Trenches are etched into the porous low-k dielectric layer using the organic planarization layer as a mask. The organic planarization layer is stripped.

    摘要翻译: 提供了一种在多孔低k电介质层中形成双镶嵌特征的方法。 在多孔低k电介质层中形成通孔。 在多孔低k电介质层上形成有机平坦化层,其中有机层填充通孔。 在有机平坦化层上形成光致抗蚀剂掩模。 特征被蚀刻到有机平坦化层中,包括提供含有CO 2的蚀刻气体,并从含有CO 2 2的蚀刻气体形成等离子体,其蚀刻有机平坦化层。 使用有机平坦化层作为掩模将沟槽蚀刻到多孔低k电介质层中。 剥离有机平坦化层。

    Trilayer resist organic layer etch
    2.
    发明授权
    Trilayer resist organic layer etch 有权
    三层抗蚀剂有机层蚀刻

    公开(公告)号:US08124516B2

    公开(公告)日:2012-02-28

    申请号:US11507862

    申请日:2006-08-21

    IPC分类号: H01L21/44

    CPC分类号: H01L21/76808

    摘要: A method of forming dual damascene features in a porous low-k dielectric layer is provided. Vias are formed in the porous low-k dielectric layer. An organic planarization layer is formed over the porous low-k dielectric layer, wherein the organic layer fills the vias. A photoresist mask is formed over the organic planarization layer. Features are etched into the organic planarization layer comprising providing a CO2 containing etch gas and forming a plasma from the CO2 containing etch gas, which etches the organic planarization layer. Trenches are etched into the porous low-k dielectric layer using the organic planarization layer as a mask. The organic planarization layer is stripped.

    摘要翻译: 提供了一种在多孔低k电介质层中形成双镶嵌特征的方法。 在多孔低k电介质层中形成通孔。 在多孔低k电介质层上形成有机平坦化层,其中有机层填充通孔。 在有机平坦化层上形成光致抗蚀剂掩模。 将特征蚀刻到有机平坦化层中,包括提供含CO 2的蚀刻气体并从含有CO 2的蚀刻气体形成等离子体,其蚀刻有机平坦化层。 使用有机平坦化层作为掩模将沟槽蚀刻到多孔低k电介质层中。 剥离有机平坦化层。

    Reducing damage to low-K materials during photoresist stripping
    3.
    发明授权
    Reducing damage to low-K materials during photoresist stripping 有权
    在光刻胶剥离期间减少对低K材料的损伤

    公开(公告)号:US08815745B2

    公开(公告)日:2014-08-26

    申请号:US12360765

    申请日:2009-01-27

    IPC分类号: H01L21/302

    摘要: A method of forming features in a porous low-k dielectric layer disposed below a patterned organic mask is provided. Features are etched into the porous low-k dielectric layer through the patterned organic mask, and then the patterned organic mask is stripped. The stripping of the patterned organic mask includes providing a stripping gas comprising COS, forming a plasma from the stripping gas, and stopping the stripping gas. A cap layer may be provided between the porous low-k dielectric layer and the patterned organic mask. The stripping of the patterned organic mask leaves the cap layer on the porous low-k dielectric layer.

    摘要翻译: 提供了一种在图案化有机掩模下方形成多孔低k电介质层中的特征的方法。 通过图案化的有机掩模将特征蚀刻到多孔低k电介质层中,然后剥去图案化的有机掩模。 图案化有机掩模的剥离包括提供包含COS的汽提气体,从汽提气体形成等离子体,并停止汽提气体。 可以在多孔低k电介质层和图案化有机掩模之间设置覆盖层。 图案化有机掩模的剥离在多孔低k电介质层上留下盖层。

    Method of patterning a low-k dielectric film
    4.
    发明授权
    Method of patterning a low-k dielectric film 有权
    图案化低k电介质膜的方法

    公开(公告)号:US08987139B2

    公开(公告)日:2015-03-24

    申请号:US14159832

    申请日:2014-01-21

    摘要: Methods of patterning low-k dielectric films are described. In an example, In an embodiment, a method of patterning a low-k dielectric film involves forming and patterning a metal nitride mask layer above a low-k dielectric layer. The low-k dielectric layer is disposed above a substrate. The method also involves passivating the metal nitride mask layer by treating with a plasma based on O2/N2/SixFy. The method also involves etching a portion of the low-k dielectric layer.

    摘要翻译: 描述了低k介电膜图案的方法。 在一个实施例中,在一个实施例中,图案化低k电介质膜的方法涉及在低k电介质层上形成和图案化金属氮化物掩模层。 低k电介质层设置在衬底之上。 该方法还涉及通过用基于O 2 / N 2 / SixFy的等离子体处理钝化金属氮化物掩模层。 该方法还涉及蚀刻低k电介质层的一部分。

    In-situ plug fill
    5.
    发明授权
    In-situ plug fill 有权
    现场插头填充

    公开(公告)号:US07192531B1

    公开(公告)日:2007-03-20

    申请号:US10603412

    申请日:2003-06-24

    IPC分类号: H01L21/302

    CPC分类号: H01L21/76808 H01L21/31138

    摘要: A method for forming damascene features in a dielectric layer over a barrier layer over a substrate is provided. A plurality of vias are etched in the dielectric layer to the barrier layer with a plasma etching process in the plasma processing chamber. A patterned photoresist layer is formed with a trench pattern. Within a single plasma process chamber a combination via plug deposition to form plugs in the vias over the barrier layer and trench etch is provided.

    摘要翻译: 提供了一种用于在衬底上的阻挡层上的介电层中形成镶嵌特征的方法。 在等离子体处理室中通过等离子体蚀刻工艺将多个通孔在电介质层中蚀刻到阻挡层。 形成具有沟槽图案的图案化的光致抗蚀剂层。 在单个等离子体处理室内,提供了通过插塞沉积的组合以在阻挡层上的通孔中形成插塞和沟槽蚀刻。

    Etching a dielectric layer in an integrated circuit structure having a metal hard mask layer
    6.
    发明授权
    Etching a dielectric layer in an integrated circuit structure having a metal hard mask layer 有权
    在具有金属硬掩模层的集成电路结构中蚀刻介电层

    公开(公告)号:US06969685B1

    公开(公告)日:2005-11-29

    申请号:US10246926

    申请日:2002-09-18

    摘要: The invention relates to the etching of a dielectric layer in an integrated circuit (IC) structure having a patterned metal hard mask layer. The method comprises feeding a gas mixture that includes a carbon monoxide (CO) and at least one fluorocarbon gas mixture into a reactor. The gas mixture has no oxygen (O2) gas. The gas mixture is then converted into a plasma. The plasma selectively etches the dielectric layer. Typically, the dielectric layer comprises silicon.

    摘要翻译: 本发明涉及具有图案化金属硬掩模层的集成电路(IC)结构中的介电层的蚀刻。 该方法包括将包含一氧化碳(CO)和至少一种碳氟化合物气体混合物的气体混合物进料到反应器中。 气体混合物没有氧(O 2/2)气体。 然后将气体混合物转化成等离子体。 等离子体选择性地蚀刻介电层。 通常,电介质层包括硅。

    Method of removing a metal hardmask
    7.
    发明授权
    Method of removing a metal hardmask 有权
    去除金属硬掩模的方法

    公开(公告)号:US09006106B2

    公开(公告)日:2015-04-14

    申请号:US13889550

    申请日:2013-05-08

    IPC分类号: H01L21/311

    摘要: Methods of removing metal hardmasks in the presence of ultra low-k dielectric films are described. In an example, a method of patterning a low-k dielectric film includes forming a pattern in a metal nitride hardmask layer formed above a low-k dielectric film formed above a substrate. The method also includes etching, using the metal nitride hardmask layer as a mask, the pattern at least partially into the low-k dielectric film, the etching involving using a plasma etch based on SiFx. The etching also involves forming an SiOx passivation layer at least on sidewalls of the low-k dielectric film formed during the etching. The method also includes removing the metal nitride hardmask layer by a dry etch process, where the SiOx passivation layer protects the low-k dielectric film during the removing.

    摘要翻译: 描述了在超低k电介质膜存在下去除金属硬掩模的方法。 在一个示例中,图案化低k电介质膜的方法包括在形成在衬底上方的低k电介质膜上形成的金属氮化物硬掩模层中形成图案。 该方法还包括使用金属氮化物硬掩模层作为掩模的蚀刻,该图案至少部分地进入低k电介质膜,该蚀刻涉及使用基于SiFx的等离子体蚀刻。 蚀刻还包括至少在蚀刻期间形成的低k电介质膜的侧壁上形成SiO x钝化层。 该方法还包括通过干蚀刻工艺去除金属氮化物硬掩模层,其中SiO x钝化层在去除期间保护低k绝缘膜。

    METHOD OF PATTERNING A LOW-K DIELECTRIC FILM
    8.
    发明申请
    METHOD OF PATTERNING A LOW-K DIELECTRIC FILM 有权
    绘制低K电介质膜的方法

    公开(公告)号:US20140213060A1

    公开(公告)日:2014-07-31

    申请号:US14159832

    申请日:2014-01-21

    IPC分类号: H01L21/311

    摘要: Methods of patterning low-k dielectric films are described. In an example, In an embodiment, a method of patterning a low-k dielectric film involves forming and patterning a metal nitride mask layer above a low-k dielectric layer. The low-k dielectric layer is disposed above a substrate. The method also involves passivating the metal nitride mask layer by treating with a plasma based on O2/N2/SixFy. The method also involves etching a portion of the low-k dielectric layer.

    摘要翻译: 描述了低k介电膜图案的方法。 在一个实施例中,在一个实施例中,图案化低k电介质膜的方法涉及在低k电介质层上形成和图案化金属氮化物掩模层。 低k电介质层设置在衬底之上。 该方法还涉及通过用基于O 2 / N 2 / SixFy的等离子体处理钝化金属氮化物掩模层。 该方法还涉及蚀刻低k电介质层的一部分。

    Lag control
    9.
    发明授权
    Lag control 有权
    滞后控制

    公开(公告)号:US07789991B1

    公开(公告)日:2010-09-07

    申请号:US11810929

    申请日:2007-06-07

    IPC分类号: C23F1/00 H01L21/306

    CPC分类号: H01L21/31116 H01L21/31138

    摘要: A method for etching features in a silicon oxide based dielectric layer over a substrate, comprising performing an etch cycle. A lag etch partially etching features in the silicon oxide based dielectric layer is performed, comprising providing a lag etchant gas, forming a plasma from the lag etchant gas, and etching the etch layer with the lag etchant gas, so that smaller features are etched slower than wider features. A reverse lag etch further etching the features in the silicon oxide based dielectric layer is performed comprising providing a reverse lag etchant gas, which is different from the lag etchant gas and is more polymerizing than the lag etchant gas, forming a plasma from the reverse lag etchant gas, and etching the silicon oxide based dielectric layer with the plasma formed from the reverse lag etchant gas, so that smaller features are etched faster than wider features.

    摘要翻译: 一种用于在衬底上蚀刻基于氧化硅的电介质层中的特征的方法,包括执行蚀刻循环。 执行基于氧化硅的电介质层中部分蚀刻部分蚀刻特征的延迟蚀刻,包括提供滞后的蚀刻剂气体,从滞后的蚀刻剂气体形成等离子体,并用滞后的蚀刻剂气体蚀刻蚀刻层,使得较小的特征被蚀刻更慢 比更广泛的功能。 执行反向延迟蚀刻进一步蚀刻基于氧化硅的电介质层中的特征,其包括提供与滞后蚀刻剂气体不同的反向滞后蚀刻剂气体,并且比滞后蚀刻剂气体更聚合,从逆向滞后形成等离子体 蚀刻气体,并用由反向滞后蚀刻剂气体形成的等离子体蚀刻基于氧化硅的电介质层,从而比较宽的特征蚀刻更小的特征。

    Lag control
    10.
    发明授权
    Lag control 有权
    滞后控制

    公开(公告)号:US07307025B1

    公开(公告)日:2007-12-11

    申请号:US11104733

    申请日:2005-04-12

    IPC分类号: H01L21/302

    CPC分类号: H01L21/31116 H01L21/31138

    摘要: A method for etching features in a silicon oxide based dielectric layer over a substrate, comprising performing an etch cycle. A lag etch partially etching features in the silicon oxide based dielectric layer is performed, comprising providing a lag etchant gas, forming a plasma from the lag etchant gas, and etching the etch layer with the lag etchant gas, so that smaller features are etched slower than wider features. A reverse lag etch further etching the features in the silicon oxide based dielectric layer is performed comprising providing a reverse lag etchant gas, which is different from the lag etchant gas and is more polymerizing than the lag etchant gas, forming a plasma from the reverse lag etchant gas, and etching the silicon oxide based dielectric layer with the plasma formed from the reverse lag etchant gas, so that smaller features are etched faster than wider features.

    摘要翻译: 一种用于在衬底上蚀刻基于氧化硅的电介质层中的特征的方法,包括执行蚀刻循环。 执行基于氧化硅的电介质层中部分蚀刻部分蚀刻特征的延迟蚀刻,包括提供滞后的蚀刻剂气体,从滞后的蚀刻剂气体形成等离子体,并用滞后的蚀刻剂气体蚀刻蚀刻层,使得较小的特征被蚀刻更慢 比更广泛的功能。 执行反向延迟蚀刻进一步蚀刻基于氧化硅的电介质层中的特征,其包括提供与滞后蚀刻剂气体不同的反向滞后蚀刻剂气体,并且比滞后蚀刻剂气体更聚合,从逆向滞后形成等离子体 蚀刻气体,并用由反向滞后蚀刻剂气体形成的等离子体蚀刻基于氧化硅的电介质层,从而比较宽的特征蚀刻更小的特征。