Reduction of feature critical dimensions
    1.
    发明授权
    Reduction of feature critical dimensions 有权
    减少功能关键尺寸

    公开(公告)号:US07541291B2

    公开(公告)日:2009-06-02

    申请号:US11821422

    申请日:2007-06-22

    IPC分类号: H01L21/302

    摘要: A feature in a layer is provided. A photoresist layer is formed over the layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls, where the photoresist features have a first critical dimension. A conformal layer is deposited over the sidewalls of the photoresist features to reduce the critical dimensions of the photoresist features. Features are etched into the layer, wherein the layer features have a second critical dimension, which is less than the first critical dimension.

    摘要翻译: 提供了一个图层中的一个特征。 在该层上形成光致抗蚀剂层。 光致抗蚀剂层被图案化以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征,其中光致抗蚀剂特征具有第一临界尺寸。 在光致抗蚀剂特征的侧壁上沉积保形层以减少光致抗蚀剂特征的临界尺寸。 将特征蚀刻到层中,其中层特征具有小于第一临界尺寸的第二临界尺寸。

    Reduction of feature critical dimensions
    2.
    发明授权
    Reduction of feature critical dimensions 有权
    减少功能关键尺寸

    公开(公告)号:US07250371B2

    公开(公告)日:2007-07-31

    申请号:US10648953

    申请日:2003-08-26

    IPC分类号: H01L21/311

    摘要: A feature in a layer is provided. A photoresist layer is formed over the layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls, where the photoresist features have a first critical dimension. A conformal layer is deposited over the sidewalls of the photoresist features to reduce the critical dimensions of the photoresist features. Features are etched into the layer, wherein the layer features have a second critical dimension, which is less than the first critical dimension.

    摘要翻译: 提供了一个图层中的一个特征。 在该层上形成光致抗蚀剂层。 光致抗蚀剂层被图案化以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征,其中光致抗蚀剂特征具有第一临界尺寸。 在光致抗蚀剂特征的侧壁上沉积保形层以减少光致抗蚀剂特征的临界尺寸。 将特征蚀刻到层中,其中层特征具有小于第一临界尺寸的第二临界尺寸。

    In-situ plug fill
    3.
    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。

    Treatment for corrosion in substrate processing
    4.
    发明授权
    Treatment for corrosion in substrate processing 有权
    处理基板加工腐蚀

    公开(公告)号:US07084070B1

    公开(公告)日:2006-08-01

    申请号:US10623016

    申请日:2003-07-17

    IPC分类号: H01L21/461 H01L21/302

    摘要: A method for processing substrate to form a semiconductor device is disclosed. The substrate includes an etch stop layer disposed above a metal layer. The method includes etching through the etch stop layer down to the copper metal layer, using a plasma etch process that utilizes a chlorine-containing etchant source gas, thereby forming etch stop layer openings in the etch stop layer. The etch stop layer includes at least one of a SiN and SiC material. Thereafter, the method includes performing a wet treatment on the substrate using a solution that contains acetic acid (CH3COOH) or acetic acid/ammonium hydroxide (NH4OH) to remove at least some of the copper oxides. Alternatively, the copper oxides may be removed using a H2 plasma. BTA passivation may be optionally performed on the substrate.

    摘要翻译: 公开了一种用于处理基板以形成半导体器件的方法。 衬底包括设置在金属层上方的蚀刻停止层。 该方法包括使用利用含氯蚀刻剂源气体的等离子体蚀刻工艺将蚀刻停止层蚀刻到铜金属层下方,从而在蚀刻停止层中形成蚀刻停止层开口。 蚀刻停止层包括SiN和SiC材料中的至少一种。 此后,该方法包括使用含有乙酸(CH 3 COOH)或乙酸/氢氧化铵(NH 4 OH)的溶液对底物进行湿处理至 去除至少一些铜氧化物。 或者,可以使用H 2 O 3等离子体去除铜氧化物。 可以任选地在衬底上进行BTA钝化。

    Method for plasma stripping using periodic modulation of gas chemistry and hydrocarbon addition
    5.
    发明授权
    Method for plasma stripping using periodic modulation of gas chemistry and hydrocarbon addition 有权
    使用气体化学和碳氢化合物加成的周期调制的等离子体剥离方法

    公开(公告)号:US07294580B2

    公开(公告)日:2007-11-13

    申请号:US10860833

    申请日:2004-06-03

    IPC分类号: H01L21/00

    摘要: A method for etching a feature in a low-k dielectric layer through a photoresist etch mask over a substrate. A gas-modulated cyclic stripping process is performed for more than three cycles for stripping a single photoresist mask. Each cycle of the gas-modulated cyclic stripping process comprises performing a protective layer formation phase and a stripping phase. The protective layer forming phase using first gas chemistry with a deposition gas chemistry, wherein the protective layer forming phase is performed in about 0.005 to 10 seconds for each cycle. The performing the stripping phase for stripping the photoresist mask using a second gas chemistry using a stripping gas chemistry, where the first gas chemistry is different than the second gas chemistry, wherein the etching phase is performed in about 0.005 to 10 seconds for each cycle.

    摘要翻译: 一种通过光刻胶蚀刻掩模在衬底上蚀刻低k电介质层中的特征的方法。 执行气体调制的循环剥离工艺超过三个循环以剥离单个光致抗蚀剂掩模。 气体调节循环汽提过程的每个循环包括进行保护层形成阶段和汽提阶段。 使用具有沉积气化学性质的第一气体化学物质的保护层形成阶段,其中保护层形成阶段在每个循环中以约0.005至10秒钟进行。 使用第二种气体化学法,使用剥离气体化学法,其中第一种气体化学物质与第二种气体化学物质不同,进行汽提阶段以剥离光致抗蚀剂掩模,其中每个循环在约0.005至10秒内进行蚀刻阶段。

    Critical dimension reduction and roughness control
    6.
    发明授权
    Critical dimension reduction and roughness control 有权
    关键尺寸减小和粗糙度控制

    公开(公告)号:US08614149B2

    公开(公告)日:2013-12-24

    申请号:US13586571

    申请日:2012-08-15

    IPC分类号: H01L21/311

    摘要: A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

    摘要翻译: 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开,控制层突破性化学。 特征被蚀刻到蚀刻层中,其蚀刻化学性质不同于控制层突破化学,其中控制层比蚀刻化学性质比保形层蚀刻更耐腐蚀。

    CRITICAL DIMENSION REDUCTION AND ROUGHNESS CONTROL
    7.
    发明申请
    CRITICAL DIMENSION REDUCTION AND ROUGHNESS CONTROL 有权
    关键尺寸减少和粗糙度控制

    公开(公告)号:US20120309201A1

    公开(公告)日:2012-12-06

    申请号:US13586571

    申请日:2012-08-15

    IPC分类号: H01L21/302

    摘要: A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

    摘要翻译: 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开,控制层突破性化学。 特征被蚀刻到蚀刻层中,其蚀刻化学性质不同于控制层突破性化学,其中控制层比蚀刻化学性质比共形层更耐蚀刻蚀刻。

    Critical dimension reduction and roughness control
    8.
    发明授权
    Critical dimension reduction and roughness control 失效
    关键尺寸减小和粗糙度控制

    公开(公告)号:US07695632B2

    公开(公告)日:2010-04-13

    申请号:US11142509

    申请日:2005-05-31

    IPC分类号: H01L21/302

    摘要: A method for forming a feature in an etch layer is provided. A photoresist layer is formed over the etch layer. The photoresist layer is patterned to form photoresist features with photoresist sidewalls. A control layer is formed over the photoresist layer and bottoms of the photoresist features. A conformal layer is deposited over the sidewalls of the photoresist features and control layer to reduce the critical dimensions of the photoresist features. Openings in the control layer are opened with a control layer breakthrough chemistry. Features are etched into the etch layer with an etch chemistry, which is different from the control layer break through chemistry, wherein the control layer is more etch resistant to the etch with the etch chemistry than the conformal layer.

    摘要翻译: 提供了一种在蚀刻层中形成特征的方法。 在蚀刻层上形成光致抗蚀剂层。 图案化光致抗蚀剂层以形成具有光致抗蚀剂侧壁的光致抗蚀剂特征。 在光致抗蚀剂层和光致抗蚀剂特征的底部上形成控制层。 在光致抗蚀剂特征和控制层的侧壁上沉积保形层以减少光刻胶特征的临界尺寸。 控制层的开口打开,控制层突破性化学。 特征被蚀刻到蚀刻层中,其蚀刻化学性质不同于控制层突破性化学,其中控制层比蚀刻化学性质比共形层更耐蚀刻蚀刻。

    Method of forming dual damascene structure
    9.
    发明授权
    Method of forming dual damascene structure 有权
    形成双镶嵌结构的方法

    公开(公告)号:US07098130B1

    公开(公告)日:2006-08-29

    申请号:US11016304

    申请日:2004-12-16

    IPC分类号: H01L21/4763

    CPC分类号: H01L21/76808 H01L21/76813

    摘要: A method for forming dual damascene features in a dielectric layer. Vias are partially etched in the dielectric layer. A trench pattern mask is formed over the dielectric layer. Trenches are partially etched in the dielectric layer. The trench pattern mask is stripped. The dielectric layer is further etched to complete etch the vias and the trenches in the dielectric layer.

    摘要翻译: 一种在介电层中形成双镶嵌特征的方法。 在电介质层中部分地蚀刻通孔。 在电介质层上形成沟槽图案掩模。 在介电层中部分蚀刻沟槽。 剥去沟槽图案掩模。 进一步蚀刻电介质层以完成蚀刻介电层中的通路和沟槽。

    Glue layer for hydrofluorocarbon etch
    10.
    发明授权
    Glue layer for hydrofluorocarbon etch 有权
    氟化氢蚀刻胶层

    公开(公告)号:US07902073B2

    公开(公告)日:2011-03-08

    申请号:US11610953

    申请日:2006-12-14

    IPC分类号: H01L21/311

    摘要: A method for etching features in an etch layer disposed below a mask on a process wafer is provided. A hydrocarbon based glue layer is deposited. The etch layer on the process wafer is etched with at least one cycle, wherein each cycle comprises depositing a hydrofluorocarbon layer over the mask and on the hydrocarbon based glue layer, wherein the hydrocarbon based glue layer increases adhesion of the hydrofluorocarbon layer and etching the etch layer.

    摘要翻译: 提供了一种用于蚀刻设置在处理晶片上的掩模下方的蚀刻层中的特征的方法。 沉积烃基胶层。 用至少一个循环蚀刻处理晶片上的蚀刻层,其中每个循环包括在掩模上和基于烃的胶层上沉积氢氟碳化合物层,其中基于烃的胶层增加氢氟烃层的粘附和蚀刻蚀刻 层。