公开(公告)号：US08679941B2

公开(公告)日：2014-03-25

申请号：US13422138

申请日：2012-03-16

申请人： Jason E Cummings ,  Lisa F Edge ,  Balasubramanian S. Haran ,  David V Horak ,  Hemanth Jagannathan ,  Sanjay Mehta

发明人： Jason E Cummings ,  Lisa F Edge ,  Balasubramanian S. Haran ,  David V Horak ,  Hemanth Jagannathan ,  Sanjay Mehta

IPC分类号： H01L21/76

CPC分类号： H01L21/76229

摘要： A method of forming a semiconductor device is provided where in one embodiment an STI fill is recessed below the pad nitride and pad oxide layers, to a level substantially coplanar with the top surface of the substrate. A thin (having a thickness in the range of about 10 Å-100 Å) wet etch resistant layer is formed in contact with and completely covering at least the top surface of the recessed STI fill material. The thin wet etch resistant layer is more resistant to a wet etch process than at least the pad oxide layer. The thin wet etch resistant layer may be a refractory dielectric material, or a dielectric such as HfOx, AlyOx, ZrOx, HfZrOx, and HfSiOx. The inventive wet etch resistant layer improves the wet etch budget of subsequent wet etch processing steps.

摘要翻译： 提供一种形成半导体器件的方法，其中在一个实施例中，STI填充物在衬垫氮化物和衬垫氧化物层下方凹入到与衬底的顶表面基本上共面的水平。 至少形成凹入的STI填充材料的上表面，形成薄（具有在约10埃-120埃范围内的厚度）耐湿蚀刻层。 薄的耐湿蚀刻层比至少衬垫氧化物层更耐湿蚀刻工艺。 薄的耐湿蚀刻层可以是耐火电介质材料，或诸如HfO x，Al y O x，ZrO x，HfZrO x和HfSiO x的电介质。 本发明的耐湿蚀刻层提高了后续湿蚀刻处理步骤的湿法蚀刻预算。

公开(公告)号：US08524606B2

公开(公告)日：2013-09-03

申请号：US13012821

申请日：2011-01-25

申请人： Leslie Charns ,  John M. Cotte ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

发明人： Leslie Charns ,  John M. Cotte ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

IPC分类号： H01L21/311

CPC分类号： H01L21/31053 ,  H01L29/517 ,  H01L29/6653 ,  H01L29/66545

摘要： Planarization methods include depositing a mask material on top of an overburden layer on a semiconductor wafer. The mask material is planarized to remove the mask material from up areas of the overburden layer to expose the overburden layer without removing the mask material from down areas. The exposed overburden layer is wet etched and leaves a thickness remaining over an underlying layer. Remaining portions of the mask layer and the exposed portions of the overburden layer are planarized to expose the underlying layer.

摘要翻译： 平面化方法包括在半导体晶片上的覆盖层顶部沉积掩模材料。 将掩模材料平坦化以从覆盖层的上部区域去除掩模材料，以暴露覆盖层，而不从掩模材料向下区域移除。 暴露的覆盖层被湿蚀刻并留下厚度保留在下层上。 掩模层的剩余部分和覆盖层的暴露部分被平坦化以暴露下面的层。

公开(公告)号：US20120187523A1

公开(公告)日：2012-07-26

申请号：US13011546

申请日：2011-01-21

申请人： Jason E. Cummings ,  Balasubramanian S. Haran ,  Hemanth Jagannathan ,  Sanjay Mehta

发明人： Jason E. Cummings ,  Balasubramanian S. Haran ,  Hemanth Jagannathan ,  Sanjay Mehta

IPC分类号： H01L21/762 ,  H01L29/06

CPC分类号： H01L21/76224 ,  H01L21/02107 ,  H01L21/823481 ,  H01L21/823878 ,  H01L29/0649 ,  H01L29/513 ,  H01L29/517 ,  H01L29/6659 ,  H01L29/7833

摘要： A shallow trench isolation region is provided in which void formation is substantially or totally eliminated therefrom. The shallow trench isolation mitigates active shorts between two active regions of a semiconductor substrate. The shallow trench isolation region includes a bilayer liner which is present on sidewalls and a bottom wall of a trench that is formed in a semiconductor substrate. The bilayer liner of the present disclosure includes, from bottom to top, a shallow trench isolation liner, e.g., a semiconductor oxide and/or nitride, and a high k liner, e.g., a dielectric material having a dielectric constant that is greater than silicon oxide.

摘要翻译： 提供浅沟槽隔离区域，其中空隙形成基本上或完全从其中消除。 浅沟槽隔离减轻半导体衬底的两个有源区域之间的有源短路。 浅沟槽隔离区域包括存在于形成在半导体衬底中的沟槽的侧壁和底壁上的双层衬垫。 本公开的双层衬垫包括从底部到顶部的浅沟槽隔离衬垫，例如半导体氧化物和/或氮化物，以及高k衬里，例如介电常数大于硅的介电材料 氧化物。

公开(公告)号：US20120178236A1

公开(公告)日：2012-07-12

申请号：US13422138

申请日：2012-03-16

申请人： Jason E. Cummings ,  Lisa F. Edge ,  Balasubramanian S. Haran ,  David V. Horak ,  Hemanth Jagannathan ,  Sanjay Mehta

发明人： Jason E. Cummings ,  Lisa F. Edge ,  Balasubramanian S. Haran ,  David V. Horak ,  Hemanth Jagannathan ,  Sanjay Mehta

IPC分类号： H01L21/762

CPC分类号： H01L21/76229

摘要： A method of forming a semiconductor device is provided where in one embodiment an STI fill is recessed below the pad nitride and pad oxide layers, to a level substantially coplanar with the top surface of the substrate. A thin (having a thickness in the range of about 10 Å-100 Å) wet etch resistant layer is formed in contact with and completely covering at least the top surface of the recessed STI fill material. The thin wet etch resistant layer is more resistant to a wet etch process than at least the pad oxide layer. The thin wet etch resistant layer may be a refractory dielectric material, or a dielectric such as HfOx, AlyOx, ZrOx, HfZrOx, and HfSiOx. The inventive wet etch resistant layer improves the wet etch budget of subsequent wet etch processing steps.

摘要翻译： 提供一种形成半导体器件的方法，其中在一个实施例中，STI填充物在衬垫氮化物和衬垫氧化物层下方凹入到与衬底的顶表面基本上共面的水平。 至少形成凹入的STI填充材料的上表面，形成薄（具有在约10埃-120埃范围内的厚度）耐湿蚀刻层。 薄的耐湿蚀刻层比至少衬垫氧化物层更耐湿蚀刻工艺。 薄的耐湿蚀刻层可以是耐火电介质材料，或诸如HfO x，Al y O x，ZrO x，HfZrO x和HfSiO x的电介质。 本发明的耐湿蚀刻层提高了后续湿蚀刻处理步骤的湿法蚀刻预算。

公开(公告)号：US20120083125A1

公开(公告)日：2012-04-05

申请号：US13012821

申请日：2011-01-25

申请人： Leslie Charns ,  John M. Cotte ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lafaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

发明人： Leslie Charns ,  John M. Cotte ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lafaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

IPC分类号： H01L21/311

CPC分类号： H01L21/31053 ,  H01L29/517 ,  H01L29/6653 ,  H01L29/66545

摘要： Planarization methods include depositing a mask material on top of an overburden layer on a semiconductor wafer. The mask material is planarized to remove the mask material from up areas of the overburden layer to expose the overburden layer without removing the mask material from down areas. The exposed overburden layer is wet etched and leaves a thickness remaining over an underlying layer. Remaining portions of the mask layer and the exposed portions of the overburden layer are planarized to expose the underlying layer.

摘要翻译： 平面化方法包括在半导体晶片上的覆盖层顶部沉积掩模材料。 将掩模材料平坦化以从覆盖层的上部区域去除掩模材料，以暴露覆盖层，而不从掩模材料向下区域移除。 暴露的覆盖层被湿蚀刻并留下厚度保留在下层上。 掩模层的剩余部分和覆盖层的暴露部分被平坦化以暴露下面的层。

公开(公告)号：US09018024B2

公开(公告)日：2015-04-28

申请号：US12603668

申请日：2009-10-22

申请人： Nathaniel C. Berliner ,  Kangguo Cheng ,  Jason E. Cummings ,  Toshiharu Furukawa ,  Jed H. Rankin ,  Robert R. Robison ,  William R. Tonti

发明人： Nathaniel C. Berliner ,  Kangguo Cheng ,  Jason E. Cummings ,  Toshiharu Furukawa ,  Jed H. Rankin ,  Robert R. Robison ,  William R. Tonti

IPC分类号： H01L21/66 ,  H01L21/762 ,  H01L21/306

CPC分类号： H01L21/7624 ,  H01L21/30625 ,  H01L22/12 ,  H01L22/20 ,  H01L2924/0002 ,  Y10S438/959 ,  H01L2924/00

摘要： An extremely thin semiconductor-on-insulator (ETSOI) wafer is created having a substantially uniform thickness by measuring a semiconductor layer thickness at a plurality of selected points on a wafer; determining a removal thickness to be removed at each of the plurality of selected points such that removal of the removal thickness results in a substantially uniform within-wafer semiconductor layer thickness; implanting a species into the wafer at each of the plurality of selected points with at least one of a dose level and an energy level based on the removal thickness for the respective point; and polishing the semiconductor layer to thin the semiconductor layer.

摘要翻译： 通过测量晶片上的多个选定点处的半导体层厚度，制造出具有基本上均匀的厚度的极薄的绝缘体上半导体（ETSOI）晶片; 确定在所述多个选择点中的每一个处要除去的去除厚度，使得所述去除厚度的去除导致基本上均匀的晶片内半导体层厚度; 基于各个点的去除厚度，以剂量水平和能量水平中的至少一个将多个选择点中的每一个植入种子到晶片; 并抛光半导体层以使半导体层变薄。

公开(公告)号：US08790991B2

公开(公告)日：2014-07-29

申请号：US13011546

申请日：2011-01-21

申请人： Jason E. Cummings ,  Balasubramanian S. Haran ,  Hemanth Jagannathan ,  Sanjay Mehta

发明人： Jason E. Cummings ,  Balasubramanian S. Haran ,  Hemanth Jagannathan ,  Sanjay Mehta

IPC分类号： H01L21/76 ,  H01L21/762 ,  H01L21/02 ,  H01L21/8234 ,  H01L29/06

CPC分类号： H01L21/76224 ,  H01L21/02107 ,  H01L21/823481 ,  H01L21/823878 ,  H01L29/0649 ,  H01L29/513 ,  H01L29/517 ,  H01L29/6659 ,  H01L29/7833

摘要： A shallow trench isolation region is provided in which void formation is substantially or totally eliminated therefrom. The shallow trench isolation mitigates active shorts between two active regions of a semiconductor substrate. The shallow trench isolation region includes a bilayer liner which is present on sidewalls and a bottom wall of a trench that is formed in a semiconductor substrate. The bilayer liner of the present disclosure includes, from bottom to top, a shallow trench isolation liner, e.g., a semiconductor oxide and/or nitride, and a high k liner, e.g., a dielectric material having a dielectric constant that is greater than silicon oxide.

摘要翻译： 提供浅沟槽隔离区域，其中空隙形成基本上或完全从其中消除。 浅沟槽隔离减轻半导体衬底的两个有源区域之间的有源短路。 浅沟槽隔离区域包括存在于形成在半导体衬底中的沟槽的侧壁和底壁上的双层衬垫。 本公开的双层衬垫包括从底部到顶部的浅沟槽隔离衬垫，例如半导体氧化物和/或氮化物，以及高k衬里，例如介电常数大于硅的介电材料 氧化物。

公开(公告)号：US08513127B2

公开(公告)日：2013-08-20

申请号：US13012836

申请日：2011-01-25

申请人： Josephine B. Chang ,  Leslie Charns ,  Jason E. Cummings ,  Michael A. Guillorn ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

发明人： Josephine B. Chang ,  Leslie Charns ,  Jason E. Cummings ,  Michael A. Guillorn ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

IPC分类号： H01L21/302

CPC分类号： H01L21/31053 ,  H01L29/517 ,  H01L29/6653 ,  H01L29/66545

摘要： A planarization method includes planarizing a semiconductor wafer in a first chemical mechanical polish step to remove overburden and planarize a top layer leaving a thickness of top layer material over underlying layers. The top layer material is planarized in a second chemical mechanical polish step to further remove the top layer and expose underlying layers of a second material and a third material such that a selectivity of the top layer material to the second material to the third material is between about 1:1:1 to about 2:1:1 to provide a planar topography.

摘要翻译： 平面化方法包括在第一化学机械抛光步骤中平坦化半导体晶片以去除覆盖层并平坦化顶层，从而在顶层之上留下厚度的顶层材料。 顶层材料在第二化学机械抛光步骤中被平坦化，以进一步去除顶层并暴露第二材料和第三材料的下层，使得顶层材料对第二材料对第三材料的选择性在 约1：1至约2：1：1，以提供平面形貌。

公开(公告)号：US20120083121A1

公开(公告)日：2012-04-05

申请号：US13012879

申请日：2011-01-25

申请人： Takashi Ando ,  Leslie Charns ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

发明人： Takashi Ando ,  Leslie Charns ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

IPC分类号： H01L21/463

CPC分类号： H01L21/31053 ,  H01L29/517 ,  H01L29/6653 ,  H01L29/66545

摘要： Methods for polishing multiple dielectric layers to form replacement metal gate structures include a first chemical mechanical polish step to remove overburden and planarize a top layer to leave a planarized thickness over a gate structure. A second chemical mechanical polish step includes removal of the thickness to expose an underlying covered surface of a dielectric of the gate structure with a slurry configured to polish the top layer and the underlying covered surface substantially equally to accomplish a planar topography. A third chemical mechanical polish step is employed to remove the dielectric of the gate structure and expose a gate conductor.

摘要翻译： 用于抛光多个电介质层以形成替换金属栅极结构的方法包括第一化学机械抛光步骤，以去除覆盖层并平坦化顶层以在栅极结构上留下平坦化的厚度。 第二化学机械抛光步骤包括去除厚度以暴露栅极结构的电介质的下面覆盖的表面，其中浆料被配置成基本上等同地抛光顶层和下面的被覆表面以实现平面形貌。 采用第三种化学机械抛光步骤来去除栅极结构的电介质并露出栅极导体。

公开(公告)号：US08507383B2

公开(公告)日：2013-08-13

申请号：US13012879

申请日：2011-01-25

申请人： Takashi Ando ,  Leslie Charns ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

发明人： Takashi Ando ,  Leslie Charns ,  Jason E. Cummings ,  Lukasz J. Hupka ,  Dinesh R. Koli ,  Tomohisa Konno ,  Mahadevaiyer Krishnan ,  Michael F. Lofaro ,  Jakub W. Nalaskowski ,  Masahiro Noda ,  Dinesh K. Penigalapati ,  Tatsuya Yamanaka

IPC分类号： H01L21/302 ,  C03C15/00 ,  C23F1/00

CPC分类号： H01L21/31053 ,  H01L29/517 ,  H01L29/6653 ,  H01L29/66545

摘要： Methods for polishing multiple dielectric layers to form replacement metal gate structures include a first chemical mechanical polish step to remove overburden and planarize a top layer to leave a planarized thickness over a gate structure. A second chemical mechanical polish step includes removal of the thickness to expose an underlying covered surface of a dielectric of the gate structure with a slurry configured to polish the top layer and the underlying covered surface substantially equally to accomplish a planar topography. A third chemical mechanical polish step is employed to remove the dielectric of the gate structure and expose a gate conductor.

摘要翻译： 用于抛光多个电介质层以形成替换金属栅极结构的方法包括第一化学机械抛光步骤，以去除覆盖层并平坦化顶层以在栅极结构上留下平坦化的厚度。 第二化学机械抛光步骤包括去除厚度以暴露栅极结构的电介质的下面覆盖的表面，其中浆料被配置成基本上等同地抛光顶层和下面的被覆表面以实现平面形貌。 采用第三种化学机械抛光步骤来去除栅极结构的电介质并露出栅极导体。