公开(公告)号：US09449822B2

公开(公告)日：2016-09-20

申请号：US12846020

申请日：2010-07-29

申请人： Wai-Kin Li ,  Wu-Song Huang ,  Joy Cheng ,  Kuang-Jung Chen

发明人： Wai-Kin Li ,  Wu-Song Huang ,  Joy Cheng ,  Kuang-Jung Chen

IPC分类号： H01L21/033

CPC分类号： H01L21/0337 ,  H01L21/0338

摘要： Embodiments of the present invention provide a method of forming a semiconductor structure. The method includes forming a set of shapes on top of a substrate; applying a layer of copolymer covering the substrate; causing the copolymer to form a plurality of cylindrical blocks both inside and outside the shapes; forming a pattern of contact holes from the plurality of cylindrical blocks; and transferring the pattern of contact holes to the substrate to form the semiconductor structure. In one embodiment, the shapes are rings and forming the set of shapes includes forming a set of rings that are equally and squarely spaced. In another embodiment, causing the copolymer to form the plurality of cylindrical blocks includes forming only one cylindrical block inside each of the rings and only one cylindrical block outside every four (4) squarely neighboring rings.

摘要翻译： 本发明的实施例提供一种形成半导体结构的方法。 该方法包括在衬底的顶部上形成一组形状; 涂覆覆盖基材的共聚物层; 使共聚物在形状内部和外部形成多个圆柱形块; 从所述多个圆柱形块形成接触孔的图案; 并将接触孔的图案转移到衬底以形成半导体结构。 在一个实施例中，形状是环，并且形成一组形状包括形成均匀且平直间隔的一组环。 在另一个实施方案中，使共聚物形成多个圆柱形块包括仅在每个环内形成一个圆柱形块，并且在每四（4）个正方形相邻的环周围仅形成一个圆柱形块。

公开(公告)号：US20120028476A1

公开(公告)日：2012-02-02

申请号：US12846020

申请日：2010-07-29

申请人： Wai-Kin Li ,  Wu-Song Huang ,  Joy Cheng ,  Kuang-Jung Chen

发明人： Wai-Kin Li ,  Wu-Song Huang ,  Joy Cheng ,  Kuang-Jung Chen

IPC分类号： H01L21/312

CPC分类号： H01L21/0337 ,  H01L21/0338

摘要： Embodiments of the present invention provide a method of forming a semiconductor structure. The method includes forming a set of shapes on top of a substrate; applying a layer of copolymer covering the substrate; causing the copolymer to form a plurality of cylindrical blocks both inside and outside the shapes; forming a pattern of contact holes from the plurality of cylindrical blocks; and transferring the pattern of contact holes to the substrate to form the semiconductor structure. In one embodiment, the shapes are rings and forming the set of shapes includes forming a set of rings that are equally and squarely spaced. In another embodiment, causing the copolymer to form the plurality of cylindrical blocks includes forming only one cylindrical block inside each of the rings and only one cylindrical block outside every four (4) squarely neighboring rings.

摘要翻译： 本发明的实施例提供一种形成半导体结构的方法。 该方法包括在衬底的顶部上形成一组形状; 涂覆覆盖基材的共聚物层; 使共聚物在形状内部和外部形成多个圆柱形块; 从所述多个圆柱形块形成接触孔的图案; 并将接触孔的图案转移到衬底以形成半导体结构。 在一个实施例中，形状是环，并且形成一组形状包括形成均匀且平直间隔的一组环。 在另一个实施方案中，使共聚物形成多个圆柱形块包括仅在每个环内形成一个圆柱形块，并且在每四（4）个正方形相邻的环周围仅形成一个圆柱形块。

公开(公告)号：US09316916B2

公开(公告)日：2016-04-19

申请号：US12419403

申请日：2009-04-07

申请人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-kin Li

发明人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-kin Li

IPC分类号： G03F7/207 ,  G03F7/40 ,  G03F7/00 ,  G03F7/20 ,  G03F7/38

CPC分类号： G03F7/40 ,  G03F7/0035 ,  G03F7/2024 ,  G03F7/203 ,  G03F7/2041 ,  G03F7/38

摘要： A method to mitigate resist pattern critical dimension (CD) variation in a double-exposure process generally includes forming a photoresist layer over a substrate; exposing the photoresist layer to a first radiation; developing the photoresist layer to form a first pattern in the photoresist layer; forming a topcoat layer over the photoresist layer; exposing the topcoat layer and the photoresist layer to a second radiation; removing the topcoat layer; and developing the photoresist layer to form a second pattern in the photoresist layer.

摘要翻译： 减轻双曝光工艺中抗蚀剂图案临界尺寸（CD）变化的方法通常包括在衬底上形成光致抗蚀剂层; 将光致抗蚀剂层暴露于第一辐射; 显影光致抗蚀剂层以在光致抗蚀剂层中形成第一图案; 在光致抗蚀剂层上形成顶涂层; 将顶涂层和光致抗蚀剂层暴露于第二辐射; 去除顶涂层; 并且在光致抗蚀剂层中显影光致抗蚀剂层以形成第二图案。

公开(公告)号：US08394573B2

公开(公告)日：2013-03-12

申请号：US12883442

申请日：2010-09-16

申请人： Wu-Song Huang ,  Kuang-Jung Chen ,  Wai-Kin Li ,  Sen Liu

发明人： Wu-Song Huang ,  Kuang-Jung Chen ,  Wai-Kin Li ,  Sen Liu

IPC分类号： G03F7/00 ,  G03F7/004 ,  G03F7/40

CPC分类号： G03F7/40 ,  G03F7/0045 ,  G03F7/0397 ,  G03F7/405

摘要： A method for reducing a photoresist critical dimension, the method comprising depositing a photoresist film on a substrate, wherein the photoresist film includes a thermal base generator; patterning the photoresist film to form a first patterned film possessing a first critical dimension; depositing a crosslinkable film over the first patterned film; heat-activating the first patterned film, either before or after depositing the crosslinkable film, to release a base in the first patterned film and cause crosslinking in the crosslinkable film in contact with the first patterned film; and developing the crosslinkable film to remove non-crosslinked soluble portions therein to form a second patterned film possessing a reduced critical dimension compared to the first critical dimension.

摘要翻译： 一种降低光致抗蚀剂临界尺寸的方法，所述方法包括在基底上沉积光致抗蚀剂膜，其中光致抗蚀剂膜包括热碱发生器; 图案化光致抗蚀剂膜以形成具有第一临界尺寸的第一图案化膜; 在第一图案化膜上沉积可交联膜; 在沉积可交联膜之前或之后热激活第一图案化膜，以释放第一图案化膜中的碱，并引起与第一图案化膜接触的可交联膜的交联; 并且显影所述可交联膜以除去其中的非交联的可溶部分以形成与第一临界尺寸相比具有降低的临界尺寸的第二图案化膜。

公开(公告)号：US20090130590A1

公开(公告)日：2009-05-21

申请号：US11942062

申请日：2007-11-19

申请人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-Kin Li ,  Pushkara R. Varanasi

发明人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-Kin Li ,  Pushkara R. Varanasi

IPC分类号： G03C1/73 ,  G03F7/26

CPC分类号： G03F7/0048 ,  G03F7/0035 ,  G03F7/0397 ,  G03F7/40

摘要： A photoresist composition and methods using the photoresist composition in multiple exposure/multiple layer processes. The photoresist composition includes a polymer comprising repeat units having a hydroxyl moiety; a photoacid generator; and a solvent. The polymer when formed on a substrate is substantially insoluble to the solvent after heating to a temperature of about 150° C. or greater. One method includes forming a first photoresist layer on a substrate, patternwise exposing the first photoresist layer, forming a second non photoresist layer on the substrate and patterned first photoresist layer. Another method includes forming a first photoresist layer on a substrate, patternwise exposing the first photoresist layer, forming a second photoresist layer on the substrate and patterned first photoresist layer and patternwise exposing the second photoresist layer.

摘要翻译： 光致抗蚀剂组合物和在多次曝光/多层工艺中使用光致抗蚀剂组合物的方法。 光致抗蚀剂组合物包括包含具有羟基部分的重复单元的聚合物; 光致酸发生器; 和溶剂。 形成在基材上的聚合物在加热至约150℃或更高的温度之后基本上不溶于溶剂。 一种方法包括在衬底上形成第一光致抗蚀剂层，图案地暴露第一光致抗蚀剂层，在衬底上形成第二非光致抗蚀剂层并且形成图案化的第一光致抗蚀剂层。 另一种方法包括在衬底上形成第一光致抗蚀剂层，以图形方式暴露第一光致抗蚀剂层，在衬底上形成第二光致抗蚀剂层并图案化的第一光致抗蚀剂层和图案地曝光第二光致抗蚀剂层。

公开(公告)号：US08846295B2

公开(公告)日：2014-09-30

申请号：US13457735

申请日：2012-04-27

申请人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-Kin Li

发明人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-Kin Li

IPC分类号： G03F7/038 ,  G03F7/021

CPC分类号： G03F7/0382 ,  G03F7/021 ,  G03F7/0397 ,  G03F7/20 ,  G03F7/325

摘要： The present invention relates to a photoresist composition capable of negative development and a pattern forming method using the photoresist composition. The photoresist composition includes an imaging polymer, a crosslinking agent and a radiation sensitive acid generator. The imaging polymer includes a monomeric unit having an acid-labile moiety-substituted hydroxyl group. The patterning forming method utilizes an organic solvent developer to selectively remove an unexposed region of a photoresist layer of the photoresist composition to form a patterned structure in the photoresist layer. The photoresist composition and the pattern forming method are especially useful for forming material patterns on a semiconductor substrate using 193 nm (ArF) lithography.

摘要翻译： 本发明涉及能够显影的光致抗蚀剂组合物和使用光致抗蚀剂组合物的图案形成方法。 光致抗蚀剂组合物包括成像聚合物，交联剂和辐射敏感的酸发生剂。 成像聚合物包括具有酸不稳定部分取代的羟基的单体单元。 图案形成方法利用有机溶剂显影剂选择性地除去光致抗蚀剂组合物的光致抗蚀剂层的未曝光区域，以在光致抗蚀剂层中形成图案化结构。 光致抗蚀剂组合物和图案形成方法对于使用193nm（ArF）光刻在半导体衬底上形成材料图案特别有用。

公开(公告)号：US20090155715A1

公开(公告)日：2009-06-18

申请号：US12356187

申请日：2009-01-20

申请人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-Kin Li ,  Pushkara Rao Varanasi ,  Sen Liu

发明人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-Kin Li ,  Pushkara Rao Varanasi ,  Sen Liu

IPC分类号： G03F7/20 ,  G03F7/004

CPC分类号： G03F7/0045 ,  G03F7/0035 ,  G03F7/0397 ,  G03F7/40

摘要： A method and a resist composition. The resist composition includes a polymer having repeating units having a lactone moiety, a thermal base generator capable of generating a base and a photosensitive acid generator. The polymer has the properties of being substantially soluble in a first solvent and becoming substantially insoluble after heating the polymer. The method includes forming a film of a photoresist including a polymer, a thermal base generator capable of releasing a base, a photosensitive acid generator, and a solvent. The film is patternwise imaged. The imaging includes exposing the film to radiation, resulting in producing an acid catalyst. The film is developed in an aqueous base, resulting in removing base-soluble regions and forming a patterned layer. The patterned layer is baked above the temperature, resulting in the thermal base generator releasing a base within the patterned layer and the patterned layer becoming insoluble in the solvent.

摘要翻译： 一种方法和抗蚀剂组合物。 抗蚀剂组合物包括具有内酯部分的重复单元的聚合物，能够产生碱的热碱发生剂和感光酸产生剂。 聚合物具有基本上可溶于第一溶剂的性质，并且在加热聚合物之后变得基本上不溶。 该方法包括形成包含聚合物的光致抗蚀剂膜，能够释放碱的热碱发生器，光敏酸产生剂和溶剂。 该影片被图案化成像。 成像包括将膜暴露于辐射，导致产生酸催化剂。 该膜在水性碱中显影，导致去除碱溶性区域并形成图案层。 图案化层被烘烤高于该温度，导致热基发生器释放图案化层内的基底并且图案化层变得不溶于溶剂。

公开(公告)号：US08268542B2

公开(公告)日：2012-09-18

申请号：US11949190

申请日：2007-12-03

申请人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-kin Li

发明人： Kuang-Jung Chen ,  Wu-Song Huang ,  Wai-kin Li

IPC分类号： G03F7/26

CPC分类号： G03F7/095

摘要： A method suitable for reducing side lobe printing in a photolithography process is enabled by the use of a barrier layer on top of a photoresist on a substrate. The barrier layer is absorbing at the imaging wavelength of the underlying photoresist and thus blocks the light from reaching the photoresist. A first exposure followed by a development in an aqueous base solution selectively removes a portion of the barrier layer to reveal a section of the underlying photoresist layer. At least a portion of the revealed section of the photoresist layer is then exposed and developed to form a patterned structure in the photoresist layer. The barrier layer can also be bleachable upon exposure and bake in the present invention.

摘要翻译： 通过在基板上的光致抗蚀剂的顶部上使用阻挡层，能够实现在光刻工艺中减少旁瓣印刷的方法。 阻挡层在下面的光致抗蚀剂的成像波长处吸收，从而阻挡光到达光致抗蚀剂。 第一曝光随后在碱性水溶液中显影，选择性地除去阻挡层的一部分以露出下面的光致抗蚀剂层的一部分。 然后将光致抗蚀剂层的显露部分的至少一部分曝光和显影以在光致抗蚀剂层中形成图案化结构。 在本发明中曝光和烘烤时，阻挡层也可以是可漂白的。

公开(公告)号：US08227307B2

公开(公告)日：2012-07-24

申请号：US12490353

申请日：2009-06-24

申请人： Kuang-Jung Chen ,  Ricardo A. Donaton ,  Wu-Song Huang ,  Wai-Kin Li

发明人： Kuang-Jung Chen ,  Ricardo A. Donaton ,  Wu-Song Huang ,  Wai-Kin Li

IPC分类号： H01L21/8238 ,  H01L21/31

CPC分类号： H01L21/31122 ,  H01L21/823842 ,  H01L21/823857

摘要： The present invention provides a method of forming a threshold voltage adjusted gate stack in which an external acid diffusion process is employed for selectively removing a portion of a threshold voltage adjusting layer from one device region of a semiconductor substrate. The external acid diffusion process utilizes an acid polymer which when baked exhibits an increase in acid concentration which can diffuse into an underlying exposed portion of a threshold voltage adjusting layer. The diffused acid reacts with the exposed portion of the threshold voltage adjusting layer providing an acid reacted layer that can be selectively removed as compared to a laterally adjacent portion of the threshold voltage adjusting layer that is not exposed to the diffused acid.

摘要翻译： 本发明提供一种形成阈值电压调节的栅极叠层的方法，其中使用外部酸扩散工艺来从半导体衬底的一个器件区域选择性地去除一部分阈值电压调节层。 外部酸扩散方法使用酸性聚合物，其在烘烤时表现出酸浓度的增加，其可以扩散到阈值电压调节层的下部暴露部分。 扩散的酸与阈值电压调节层的暴露部分反应，提供酸反应层，与不暴露于扩散的酸的阈值电压调节层的横向相邻部分相比，可以选择性地除去酸反应层。

公开(公告)号：US08227180B2

公开(公告)日：2012-07-24

申请号：US13158901

申请日：2011-06-13

申请人： Timothy Allan Brunner ,  Sean David Burns ,  Kuang-Jung Chen ,  Wu-Song Huang ,  Kafai Lai ,  Wai-Kin Li ,  Bernhard R. Liegl

发明人： Timothy Allan Brunner ,  Sean David Burns ,  Kuang-Jung Chen ,  Wu-Song Huang ,  Kafai Lai ,  Wai-Kin Li ,  Bernhard R. Liegl

IPC分类号： G03F7/00 ,  G03F7/028 ,  G03F7/11 ,  G03F7/20 ,  G03F7/40

CPC分类号： G03F7/091 ,  G03F7/70216 ,  Y10S430/127

摘要： An anti-reflective coating material, a microelectronic structure that includes an anti-reflective coating layer formed from the anti-reflective coating material and a related method for exposing a resist layer located over a substrate while using the anti-reflective coating layer provide for attenuation of secondary reflected vertical alignment beam radiation when aligning the substrate including the resist layer located thereover. Such enhanced vertical alignment provides for improved dimensional integrity of a patterned resist layer formed from the resist layer, as well as additional target layers that may be fabricated while using the resist layer as a mask.

摘要翻译： 防反射涂层材料，包括由抗反射涂层材料形成的抗反射涂层的微电子结构和用于在使用抗反射涂层的同时使位于基板上的抗蚀剂层曝光的相关方法提供衰减 当对准包括位于其上的抗蚀剂层的衬底时，二次反射垂直取向束辐射。 这种增强的垂直对准提供了由抗蚀剂层形成的图案化抗蚀剂层的改进的尺寸完整性，以及可以在使用抗蚀剂层作为掩模时制造的附加目标层。