Method for patterning trenches with varying dimension
    1.
    发明授权
    Method for patterning trenches with varying dimension 有权
    用于对具有不同尺寸的沟槽进行图案化的方法

    公开(公告)号:US08361684B2

    公开(公告)日:2013-01-29

    申请号:US12975120

    申请日:2010-12-21

    IPC分类号: G03F9/00

    摘要: Methods for patterning integrated circuit (IC) features with varying dimensions are provided. In an example, a method includes forming a first patterned radiation-sensitive resist layer over a device substrate using a first mask, wherein the first patterned radiation-sensitive resist layer includes a first portion of an IC pattern; using the patterned first radiation-sensitive resist layer as a mask to form the first portion of the IC pattern in the device substrate; forming a second patterned radiation-sensitive resist layer over the device substrate using a second mask, wherein the second patterned radiation-sensitive resist layer includes a second portion of the IC pattern; and using the patterned second radiation-sensitive resist layer as a mask to form the second portion of the IC pattern in the device substrate. The combined first and second portions of the IC pattern in the device substrate form an IC feature having a dimension greater than dimensions of the first and second portions.

    摘要翻译: 提供了具有不同尺寸的图案化集成电路(IC)特征的方法。 在一个示例中,一种方法包括使用第一掩模在器件衬底上形成第一图案化的辐射敏感抗蚀剂层,其中第一图案化的辐射敏感抗蚀剂层包括IC图案的第一部分; 使用图案化的第一辐射敏感抗蚀剂层作为掩模,以在器件衬底中形成IC图案的第一部分; 使用第二掩模在所述器件衬底上形成第二图案化的辐射敏感抗蚀剂层,其中所述第二图案化的辐射敏感抗蚀剂层包括所述IC图案的第二部分; 并且使用图案化的第二辐射敏感抗蚀剂层作为掩模,以在器件衬底中形成IC图案的第二部分。 装置衬底中IC图案的组合的第一和第二部分形成尺寸大于第一和第二部分的尺寸的IC特征。

    METHOD OF FORMING VIA HOLES
    2.
    发明申请
    METHOD OF FORMING VIA HOLES 有权
    通过孔的形成方法

    公开(公告)号:US20120149204A1

    公开(公告)日:2012-06-14

    申请号:US13228108

    申请日:2011-09-08

    IPC分类号: H01L21/311 G03F1/00

    摘要: A method for forming vias and trenches for an interconnect structure on a substrate includes exposing via pitch reduction patterns in a photoresist layer, developing the patterns to remove the via pitch reduction patterns, etching the photoresist layer partially using a polymer gas to reshape the pattern into small via shapes, and etching the remaining photoresist layer to extend the reshaped pattern. The reshaped small via shape patterns have a smaller pitch than the via pitch reduction patterns in a long direction. For via pitch reduction patterns having two vias each, the pattern has a peanut-shape. During the reshaping etch operation, the polymer gas deposits more in a pinched-in middle section while allowing downward etch in unpinched sections.

    摘要翻译: 用于形成衬底上的互连结构的通路和沟槽的方法包括通过光刻胶层中的节距减小图案曝光,显影图案以去除通孔间距减小图案,使用聚合物气体部分地蚀刻光致抗蚀剂层以将图案重新形成为 小通孔形状,并蚀刻剩余的光致抗蚀剂层以延伸重塑图案。 重新成形的小通孔形状图案具有比在长方向上的通孔间距减小图案更小的间距。 对于具有每个具有两个通孔的通孔间距减小图案,图案具有花生形状。 在重新成形蚀刻操作期间,聚合物气体更多地沉积在夹入的中间部分中,同时允许在未切割的部分中进行向下蚀刻。

    Method and apparatus of forming a via
    5.
    发明授权
    Method and apparatus of forming a via 有权
    形成通孔的方法和装置

    公开(公告)号:US09496217B2

    公开(公告)日:2016-11-15

    申请号:US12478619

    申请日:2009-06-04

    IPC分类号: H01L23/522 H01L21/768

    摘要: The present disclosure provides a semiconductor device that includes, a substrate; a first conductive line located over the substrate and extending along a first axis, the first conductive line having a first length and a first width, the first length being measured along the first axis; a second conductive line located over the first conductive line and extending along a second axis different from the first axis, the second conductive line having a second length and a second width, the second length being measured along the second axis; and a via coupling the first and second conductive lines, the via having an upper surface that contacts the second conductive line and a lower surface that contacts the first conductive line. The via has an approximately straight edge at the upper surface, the straight edge extending along the second axis and being substantially aligned with the second conductive line.

    摘要翻译: 本公开提供一种半导体器件,其包括:衬底; 第一导电线,位于所述衬底上并且沿着第一轴线延伸,所述第一导电线具有第一长度和第一宽度,所述第一长度沿着所述第一轴线被测量; 第二导电线,位于第一导电线之上并沿着不同于第一轴的第二轴延伸,第二导线具有第二长度和第二宽度,第二长度沿第二轴线测量; 以及耦合所述第一和第二导线的通孔,所述通孔具有接触所述第二导电线的上表面和接触所述第一导线的下表面。 通孔在上表面具有大致直边,直边沿第二轴线延伸并与第二导线基本对准。

    Double patterning strategy for contact hole and trench in photolithography
    6.
    发明授权
    Double patterning strategy for contact hole and trench in photolithography 有权
    光刻中接触孔和沟槽的双重图案化策略

    公开(公告)号:US08222151B2

    公开(公告)日:2012-07-17

    申请号:US13185067

    申请日:2011-07-18

    IPC分类号: H01L21/311

    摘要: A method of lithography patterning includes forming a hard mask layer on a material layer and forming a capping layer on the hard mask layer. The capping layer does not react with oxygen gas during a photoresist ashing process. The capping layer is patterned by using a first resist pattern and a second resist pattern as etch masks. After the capping layer is patterned, the hard mask layer is patterned by using the patterned capping layer as an etch mask.

    摘要翻译: 光刻图案的方法包括在材料层上形成硬掩模层,并在硬掩模层上形成覆盖层。 在光刻胶灰化过程中,封盖层不与氧气反应。 通过使用第一抗蚀剂图案和第二抗蚀剂图案作为蚀刻掩模来对覆盖层进行图案化。 在图案化覆盖层之后,通过使用图案化覆盖层作为蚀刻掩模来对硬掩模层进行图案化。

    METHOD FOR PATTERNING TRENCHES WITH VARYING DIMENSION
    7.
    发明申请
    METHOD FOR PATTERNING TRENCHES WITH VARYING DIMENSION 有权
    用不同尺寸绘制斜纹的方法

    公开(公告)号:US20120156593A1

    公开(公告)日:2012-06-21

    申请号:US12975120

    申请日:2010-12-21

    IPC分类号: G03F1/00 G03F7/20

    摘要: Methods for patterning integrated circuit (IC) features with varying dimensions are provided. In an example, a method includes forming a first patterned radiation-sensitive resist layer over a device substrate using a first mask, wherein the first patterned radiation-sensitive resist layer includes a first portion of an IC pattern; using the patterned first radiation-sensitive resist layer as a mask to form the first portion of the IC pattern in the device substrate; forming a second patterned radiation-sensitive resist layer over the device substrate using a second mask, wherein the second patterned radiation-sensitive resist layer includes a second portion of the IC pattern; and using the patterned second radiation-sensitive resist layer as a mask to form the second portion of the IC pattern in the device substrate. The combined first and second portions of the IC pattern in the device substrate form an IC feature having a dimension greater than dimensions of the first and second portions.

    摘要翻译: 提供了具有不同尺寸的图案化集成电路(IC)特征的方法。 在一个示例中,一种方法包括使用第一掩模在器件衬底上形成第一图案化的辐射敏感抗蚀剂层,其中第一图案化的辐射敏感抗蚀剂层包括IC图案的第一部分; 使用图案化的第一辐射敏感抗蚀剂层作为掩模,以在器件衬底中形成IC图案的第一部分; 使用第二掩模在所述器件衬底上形成第二图案化的辐射敏感抗蚀剂层,其中所述第二图案化的辐射敏感抗蚀剂层包括所述IC图案的第二部分; 并且使用图案化的第二辐射敏感抗蚀剂层作为掩模,以在器件衬底中形成IC图案的第二部分。 装置衬底中IC图案的组合的第一和第二部分形成尺寸大于第一和第二部分的尺寸的IC特征。

    Post etch dielectric film re-capping layer
    8.
    发明授权
    Post etch dielectric film re-capping layer 有权
    后蚀刻介质膜覆盖层

    公开(公告)号:US08105947B2

    公开(公告)日:2012-01-31

    申请号:US12547232

    申请日:2009-08-25

    摘要: Methods for improving post etch in via or trench formation in semiconductor devices. A preferred embodiment comprises forming a re-capping layer over a dielectric film following an initial etch to form a feature in the dielectric film, followed by additional etch and etch back processing steps. The re-capping method provides protection for underlying films and prevents film damage post etch. Uniform feature profiles are maintained and critical dimension uniformity is obtained by use of the methods of the invention. The time dependent dielectric breakdown performance is increased.

    摘要翻译: 用于改善半导体器件中的通孔或沟槽形成中的后蚀刻的方法。 优选实施例包括在初始蚀刻之后在电介质膜上形成覆盖层,以在电介质膜中形成特征,随后进行另外的蚀刻和回蚀处理步骤。 重新覆盖方法为底层膜提供保护,并防止蚀刻后的膜损伤。 通过使用本发明的方法维持均匀的特征轮廓并获得临界尺寸均匀性。 时间依赖介电击穿性能提高。

    Double patterning strategy for contact hole and trench in photolithography
    9.
    发明授权
    Double patterning strategy for contact hole and trench in photolithography 有权
    光刻中接触孔和沟槽的双重图案化策略

    公开(公告)号:US08008206B2

    公开(公告)日:2011-08-30

    申请号:US12873429

    申请日:2010-09-01

    IPC分类号: H01L21/311

    摘要: A method of lithography patterning includes forming a hard mask layer on a material layer and forming a capping layer on the hard mask layer. The capping layer does not react with oxygen gas during a photoresist ashing process. The capping layer is patterned by using a first resist pattern and a second resist pattern as etch masks. After the capping layer is patterned, the hard mask layer is patterned by using the patterned capping layer as an etch mask.

    摘要翻译: 光刻图案的方法包括在材料层上形成硬掩模层,并在硬掩模层上形成覆盖层。 在光刻胶灰化过程中,封盖层不与氧气反应。 通过使用第一抗蚀剂图案和第二抗蚀剂图案作为蚀刻掩模来对覆盖层进行图案化。 在图案化覆盖层之后,通过使用图案化覆盖层作为蚀刻掩模来对硬掩模层进行图案化。

    Method Of Forming An Interconnect Of A Semiconductor Device
    10.
    发明申请
    Method Of Forming An Interconnect Of A Semiconductor Device 有权
    形成半导体器件互连的方法

    公开(公告)号:US20110076845A1

    公开(公告)日:2011-03-31

    申请号:US12569146

    申请日:2009-09-29

    IPC分类号: H01L21/768 G03F7/20

    摘要: A method for fabricating an integrated circuit device is provided. In one embodiment, the method includes providing a substrate. A first photolithography process is performed to define a first pattern on the substrate. The first pattern includes a first trench segment. A second photolithography process is performed which defines a second pattern on the substrate. The second pattern includes a second trench segment. The second trench segment includes an overlap area with the first trench segment. The embodiment of the method further includes etching the substrate according the first and second patterns; the etching includes forming a via hole defined by the overlap area. The first trench segment, second trench segment, and via hole may be used to form a dual damascene interconnect structure.

    摘要翻译: 提供一种制造集成电路器件的方法。 在一个实施例中,该方法包括提供基底。 执行第一光刻工艺以在衬底上限定第一图案。 第一图案包括第一沟槽段。 执行在衬底上限定第二图案的第二光刻工艺。 第二图案包括第二沟槽段。 第二沟槽段包括与第一沟槽段重叠的区域。 该方法的实施例还包括根据第一和第二图案蚀刻衬底; 蚀刻包括形成由重叠区域限定的通孔。 第一沟槽段,第二沟槽段和通孔可用于形成双镶嵌互连结构。