公开(公告)号：US20070164356A1

公开(公告)日：2007-07-19

申请号：US11332564

申请日：2006-01-13

申请人： Thomas Adam ,  Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Alexander Reznicek ,  Devendra Sadana ,  Ghavam Shahidi

发明人： Thomas Adam ,  Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Alexander Reznicek ,  Devendra Sadana ,  Ghavam Shahidi

IPC分类号： H01L27/12 ,  H01L21/84

CPC分类号： H01L21/76243 ,  H01L29/66772 ,  H01L29/7849 ,  H01L29/78654

摘要： A strained (tensile or compressive) semiconductor-on-insulator material is provided in which a single semiconductor wafer and a separation by ion implantation of oxygen process are used. The separation by ion implantation of oxygen process, which includes oxygen ion implantation and annealing creates, a buried oxide layer within the material that is located beneath the strained semiconductor layer. In some embodiments, a graded semiconductor buffer layer is located beneath the buried oxide layer, while in other a doped semiconductor layer including Si doped with at least one of B or C is located beneath the buried oxide layer.

摘要翻译： 提供了一种应变（拉伸或压缩）半导体绝缘体材料，其中使用单个半导体晶片和通过氧气工艺的离子注入分离。 通过离子注入氧气工艺的分离，其中包括氧离子注入和退火，产生位于应变半导体层之下的材料内的掩埋氧化物层。 在一些实施例中，渐变半导体缓冲层位于掩埋氧化物层的下方，而在其它掺杂半导体层中，包含掺杂有B或C中的至少一个的掺杂半导体层位于掩埋氧化物层的下方。

公开(公告)号：US20070111463A1

公开(公告)日：2007-05-17

申请号：US11620663

申请日：2007-01-06

申请人： Thomas Adam ,  Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Alexander Reznicek ,  Devendra Sadana ,  Ghavam Shahidi

发明人： Thomas Adam ,  Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Alexander Reznicek ,  Devendra Sadana ,  Ghavam Shahidi

IPC分类号： H01L21/337 ,  H01L27/12 ,  H01L21/76

CPC分类号： H01L21/76259 ,  Y10S438/967

摘要： A cost efficient and manufacturable method of fabricating strained semiconductor-on-insulator (SSOI) substrates is provided that avoids wafer bonding. The method includes growing various epitaxial semiconductor layers on a substrate, wherein at least one of the semiconductor layers is a doped and relaxed semiconductor layer underneath a strained semiconductor layer; converting the doped and relaxed semiconductor layer into a porous semiconductor via an electrolytic anodization process, and oxidizing to convert the porous semiconductor layer into a buried oxide layer. The method provides a SSOI substrate that includes a relaxed semiconductor layer on a substrate; a high-quality buried oxide layer on the relaxed semiconductor layer; and a strained semiconductor layer on the high-quality buried oxide layer. In accordance with the present invention, the relaxed semiconductor layer and the strained semiconductor layer have identical crystallographic orientations.

摘要翻译： 提供了制造应变半导体绝缘体（SSOI）衬底的成本有效和可制造的方法，其避免晶片接合。 该方法包括在衬底上生长各种外延半导体层，其中半导体层中的至少一个是在应变半导体层下面的掺杂和弛豫半导体层; 通过电解阳极氧化处理将掺杂和松弛的半导体层转化成多孔半导体，并氧化以将多孔半导体层转化为掩埋氧化物层。 该方法提供了在衬底上包括松弛半导体层的SSOI衬底; 在松弛的半导体层上形成高质量的掩埋氧化物层; 以及在高质量掩埋氧化物层上的应变半导体层。 根据本发明，松弛半导体层和应变半导体层具有相同的晶体取向。

公开(公告)号：US20060003555A1

公开(公告)日：2006-01-05

申请号：US10883887

申请日：2004-07-02

申请人： Thomas Adam ,  Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Alexander Reznicek ,  Devendra Sadana ,  Ghavam Shahidi

发明人： Thomas Adam ,  Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Alexander Reznicek ,  Devendra Sadana ,  Ghavam Shahidi

IPC分类号： H01L31/0328 ,  H01L31/0336 ,  H01L31/072 ,  H01L31/109 ,  C30B1/00 ,  H01L21/20 ,  H01L21/36

CPC分类号： H01L21/76259 ,  Y10S438/967

摘要： A cost efficient and manufacturable method of fabricating strained semiconductor-on-insulator (SSOI) substrates is provided that avoids wafer bonding. The method includes growing various epitaxial semiconductor layers on a substrate, wherein at least one of the semiconductor layers is a doped and relaxed semiconductor layer underneath a strained semiconductor layer; converting the doped and relaxed semiconductor layer into a porous semiconductor via an electrolytic anodization process, and oxidizing to convert the porous semiconductor layer into a buried oxide layer. The method provides a SSOI substrate that includes a relaxed semiconductor layer on a substrate; a high-quality buried oxide layer on the relaxed semiconductor layer; and a strained semiconductor layer on the high-quality buried oxide layer. In accordance with the present invention, the relaxed semiconductor layer and the strained semiconductor layer have identical crystallographic orientations.

公开(公告)号：US20050153487A1

公开(公告)日：2005-07-14

申请号：US11039602

申请日：2005-01-19

申请人： Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Devendra Sadana ,  Ghavam Shahidi

发明人： Stephen Bedell ,  Joel de Souza ,  Keith Fogel ,  Devendra Sadana ,  Ghavam Shahidi

IPC分类号： H01L27/08 ,  H01L21/02 ,  H01L21/20 ,  H01L21/265 ,  H01L21/762 ,  H01L27/12 ,  H01L21/00

CPC分类号： H01L21/76243 ,  H01L21/26506 ,  H01L21/76267 ,  Y10T428/12674 ,  Y10T428/12681

摘要： A method of forming a substantially relaxed, high-quality SiGe-on-insulator substrate material using SIMOX and Ge interdiffusion is provided. The method includes first implanting ions into a Si-containing substrate to form an implanted-ion rich region in the Si-containing substrate. The implanted-ion rich region has a sufficient ion concentration such that during a subsequent anneal at high temperatures a barrier layer that is resistant to Ge diffusion is formed. Next, a Ge-containing layer is formed on a surface of the Si-containing substrate, and thereafter a heating step is performed at a temperature which permits formation of the barrier layer and interdiffusion of Ge thereby forming a substantially relaxed, single crystal SiGe layer atop the barrier layer.

摘要翻译： 提供了使用SIMOX和Ge相互扩散形成基本上松弛的，优质的绝缘体上硅衬底材料的方法。 该方法包括首先将离子注入到含Si衬底中以在含Si衬底中形成植入离子富集区。 注入离子富集区具有足够的离子浓度，使得在随后的高温退火期间形成耐Ge扩散的阻挡层。 接下来，在含Si衬底的表面上形成Ge含有层，然后在允许形成阻挡层和Ge的相互扩散的温度下进行加热步骤，从而形成基本上松弛的单晶SiGe层 阻挡层顶部。

公开(公告)号：US20050221591A1

公开(公告)日：2005-10-06

申请号：US10818572

申请日：2004-04-06

申请人： Stephen Bedell ,  Huajie Chen ,  Joel de Souza ,  Keith Fogel ,  Devendra Sadana ,  Ghavam Shahidi

发明人： Stephen Bedell ,  Huajie Chen ,  Joel de Souza ,  Keith Fogel ,  Devendra Sadana ,  Ghavam Shahidi

IPC分类号： C30B1/00 ,  H01L21/20 ,  H01L21/3063 ,  H01L21/36 ,  H01L31/0328 ,  H01L31/0336 ,  H01L31/072 ,  H01L31/109

CPC分类号： H01L21/3063 ,  H01L21/02381 ,  H01L21/0245 ,  H01L21/02513 ,  H01L21/02532 ,  H01L21/02658

摘要： A method of forming a high-quality relaxed SiGe alloy layer on a bulk Si-containing substrate is provided. The method of the present invention includes growing a strained SiGe alloy layer on a Si-containing substrate that has a porous Si-containing layer at or near the surface of the Si-containing substrate. The porous layer is formed by an electrolytic anodization process. The pores create free volume below the strained SiGe layer which can serve to accommodate strain relaxation during SiGe deposition or a subsequent heating step. The subsequent heating step is optional and is performed to further increase the relaxation of the SiGe alloy layer. The buried porous structure allows for a unique relaxation mechanism compared to prior art methods.

摘要翻译： 提供了在体积含Si衬底上形成高品质的弛豫SiGe合金层的方法。 本发明的方法包括在含Si衬底上生长应变SiGe合金层，该Si基合金层在含Si衬底的表面处或附近具有多孔含Si层。 多孔层通过电解阳极氧化处理形成。 孔隙在应变SiGe层之下产生自由体积，其可用于在SiGe沉积或随后的加热步骤期间适应应变松弛。 随后的加热步骤是可选的并且进行以进一步增加SiGe合金层的松弛。 与现有技术方法相比，埋入的多孔结构允许独特的松弛机制。

公开(公告)号：US20060024931A1

公开(公告)日：2006-02-02

申请号：US10902557

申请日：2004-07-29

申请人： Kevin Chan ,  Joel de Souza ,  Alexander Reznicek ,  Devendra Sadana ,  Katherine Saenger

发明人： Kevin Chan ,  Joel de Souza ,  Alexander Reznicek ,  Devendra Sadana ,  Katherine Saenger

IPC分类号： H01L21/20 ,  H01L21/425 ,  H01L21/762 ,  H01L21/84

CPC分类号： H01L21/84 ,  H01L21/76243 ,  H01L21/76267 ,  H01L27/1203 ,  H01L27/1207

摘要： This invention provides a separation by implanted oxygen (SIMOX) method for forming planar hybrid orientation semiconductor-on-insulator (SOI) substrates having different crystal orientations, thereby making it possible for devices to be fabricated on crystal orientations providing optimal performance. The method includes the steps of selecting a substrate having a base semiconductor layer having a first crystallographic orientation separated by a thin insulating layer from a top semiconductor layer having a second crystallographic orientation; replacing the top semiconductor layer in selected regions with an epitaxially grown semiconductor having the first crystallographic orientation; then using an ion implantation and annealing method to (i) form a buried insulating region within the epitaxially grown semiconductor material, and (ii) thicken the insulating layer underlying the top semiconductor layer, thereby forming a hybrid orientation substrate in which the two semiconductor materials with different crystallographic orientations have substantially the same thickness and are both disposed on a common buried insulator layer. In a variation of this method, an ion implantation and annealing method is instead used to extend an auxiliary buried insulator layer (initially underlying the base semiconductor layer) upwards (i) into the epitaxially grown semiconductor, and (ii) up to the insulating layer underlying the top semiconductor layer.

摘要翻译： 本发明提供了通过注入氧（SIMOX）分离方法，用于形成具有不同晶体取向的平面杂化取向绝缘体上半导体（SOI）衬底，从而使得可以以提供最佳性能的晶体取向来制造器件。 该方法包括以下步骤：从具有第二晶体取向的顶部半导体层选择具有由薄绝缘层分离的第一晶体取向的基底半导体层的衬底; 用具有第一晶体取向的外延生长的半导体代替选定区域中的顶部半导体层; 然后使用离子注入和退火方法来（i）在外延生长的半导体材料内形成掩埋绝缘区，并且（ii）加厚顶部半导体层下面的绝缘层，从而形成混合取向基板，其中两个半导体材料 具有不同的晶体取向具有基本上相同的厚度并且均设置在公共掩埋绝缘体层上。 在该方法的变型中，替代地使用离子注入和退火方法将辅助掩埋绝缘体层（最初在基底半导体层下面）向上（i）延伸到外延生长的半导体中，以及（ii）直到绝缘层 在顶部半导体层下面。

公开(公告)号：US20060154442A1

公开(公告)日：2006-07-13

申请号：US11031165

申请日：2005-01-07

申请人： Joel de Souza ,  John Ott ,  Alexander Reznicek ,  Devendra Sadana ,  Katherine Saenger

发明人： Joel de Souza ,  John Ott ,  Alexander Reznicek ,  Devendra Sadana ,  Katherine Saenger

IPC分类号： H01L21/46

CPC分类号： H01L21/187 ,  H01L21/76251

摘要： The present invention provides a method for removing or reducing the thickness of ultrathin interfacial oxides remaining at Si—Si interfaces after silicon wafer bonding. In particular, the invention provides a method for removing ultrathin interfacial oxides remaining after hydrophilic Si—Si wafer bonding to create bonded Si—Si interfaces having properties comparable to those achieved with hydrophobic bonding. Interfacial oxide layers of order of about 2 to about 3 nm are dissolved away by high temperature annealing, for example, an anneal at 1300°-1330° C. for 1-5 hours. The inventive method is used to best advantage when the Si surfaces at the bonded interface have different surface orientations, for example, when a Si surface having a (100) orientation is bonded to a Si surface having a (110) orientation. In a more general aspect of the invention, the similar annealing processes may be used to remove undesired material disposed at a bonded interface of two silicon-containing semiconductor materials. The two silicon-containing semiconductor materials may be the same or different in surface crystal orientation, microstructure (single-crystal, polycrystalline, or amorphous), and composition.

摘要翻译： 本发明提供一种在硅晶片接合之后去除或减少残留在Si-Si界面处的超薄界面氧化物的厚度的方法。 特别地，本发明提供了一种去除在亲水性Si-Si晶片接合之后残留的超薄界面氧化物以产生具有与通过疏水性接合实现的性能相当的特性的结合Si-Si界面的方法。 约2至约3nm的界面氧化物层通过高温退火（例如1300°-1330℃退火1-5小时）被溶解掉。 当粘合界面处的Si表面具有不同的表面取向时，例如当具有（100）取向的Si表面被结合到具有（110）取向的Si表面时，本发明的方法被用于最好的优点。 在本发明的更一般的方面中，类似的退火工艺可用于去除设置在两个含硅半导体材料的键合界面处的不期望的材料。 两种含硅半导体材料在表面晶体取向，微结构（单晶，多晶或无定形）和组成上可以相同或不同。

公开(公告)号：US20060154429A1

公开(公告)日：2006-07-13

申请号：US11031142

申请日：2005-01-07

申请人： Joel de Souza ,  Keith Fogel ,  John Ott ,  Devendra Sadana ,  Katherine Saenger

发明人： Joel de Souza ,  Keith Fogel ,  John Ott ,  Devendra Sadana ,  Katherine Saenger

IPC分类号： H01L21/336

CPC分类号： H01L21/26506 ,  H01L21/2022

摘要： The present invention provides a method for forming low-defect density changed-orientation Si by amorphization/templated recrystallization (ATR) processes in which regions of Si having a first crystal orientation are amorphized by ion implantation and then recrystallized into the orientation of a template layer having a different orientation. More generally, the invention relates to the high temperature annealing conditions needed to eliminate the defects remaining in Si-containing single crystal semiconductor materials formed by ion-implant-induced amorphization and templated recrystallization from a layer whose orientation may be the same or different from the amorphous layer's original orientation. The key component of the inventive method is a thermal treatment for minutes to hours in the the temperature range 1250-1330° C. to remove the defects remaining after the initial recrystallization anneal. The invention also provides a low-defect density changed-orientation Si formed by ATR for use in hybrid orientation substrates.

摘要翻译： 本发明提供一种通过非晶化/模板化再结晶（ATR）工艺形成低缺陷密度变化取向Si的方法，其中具有第一晶体取向的Si区域通过离子注入而非晶化，然后再结晶成模板层的取向 具有不同的方向。 更一般地，本发明涉及消除由离子注入诱导的非晶化形成的含Si单晶半导体材料中剩余的缺陷所需的高温退火条件和从取向可以相同或不同的层的模板化再结晶 非晶层的原始方向。 本发明方法的关键组分是在1250-1330℃的温度范围内进行数分钟至数小时的热处理，以去除在初始再结晶退火之后残留的缺陷。 本发明还提供了一种用于混合取向基板的ATR形成的低缺陷密度变化取向Si。

公开(公告)号：US20080057684A1

公开(公告)日：2008-03-06

申请号：US11873928

申请日：2007-10-17

申请人： Joel de Souza ,  Keith Fogel ,  John Ott ,  Devendra Sadana ,  Katherine Saenger

发明人： Joel de Souza ,  Keith Fogel ,  John Ott ,  Devendra Sadana ,  Katherine Saenger

IPC分类号： H01L21/425

CPC分类号： H01L21/26506 ,  H01L21/2022

摘要： The present invention provides a method for forming low-defect density changed-orientation Si by amorphization/templated recrystallization (ATR) processes in which regions of Si having a first crystal orientation are amorphized by ion implantation and then recrystallized into the orientation of a template layer having a different orientation. More generally, the invention relates to the high temperature annealing conditions needed to eliminate the defects remaining in Si-containing single crystal semiconductor materials formed by ion-implant-induced amorphization and templated recrystallization from a layer whose orientation may be the same or different from the amorphous layer's original orientation. The key component of the inventive method is a thermal treatment for minutes to hours in the the temperature range 1250-1330° C. to remove the defects remaining after the initial recrystallization anneal. The invention also provides a low-defect density changed-orientation Si formed by ATR for use in hybrid orientation substrates.

摘要翻译： 本发明提供一种通过非晶化/模板化再结晶（ATR）工艺形成低缺陷密度变化取向Si的方法，其中具有第一晶体取向的Si区域通过离子注入而非晶化，然后再结晶成模板层的取向 具有不同的方向。 更一般地，本发明涉及消除由离子注入诱导的非晶化形成的含Si单晶半导体材料中剩余的缺陷所需的高温退火条件和从取向可以相同或不同的层的模板化再结晶 非晶层的原始方向。 本发明方法的关键组分是在1250-1330℃的温度范围内进行数分钟至数小时的热处理，以去除在初始再结晶退火之后残留的缺陷。 本发明还提供了一种用于混合取向基板的ATR形成的低缺陷密度变化取向Si。

公开(公告)号：US20070164358A1

公开(公告)日：2007-07-19

申请号：US11333074

申请日：2006-01-17

申请人： Joel de Souza ,  Keith Fogel ,  Brian Greene ,  Devendra Sadana ,  Haining Yang

发明人： Joel de Souza ,  Keith Fogel ,  Brian Greene ,  Devendra Sadana ,  Haining Yang

IPC分类号： H01L27/12 ,  H01L29/00

CPC分类号： H01L29/32 ,  H01L21/0203 ,  H01L21/76259 ,  H01L29/1033 ,  H01L29/1083 ,  H01L29/16 ,  H01L29/78

摘要： A semiconducting material that has all the advantages of prior art SOI substrates including, for example, low parasitic capacitance and leakage, without having floating body effects is provided. More specifically, the present invention provides a Semiconductor-on-Pores (SOP) material that includes a top semiconductor layer and a bottom semiconductor layer, wherein the semiconductor layers are separated in at least one region by a porous semiconductor material. Semiconductor structures including the SOP material as a substrate as well as a method of fabricating the SOP material are also provided. The method includes forming a p-type region with a first semiconductor layer, converting the p-type region to a porous semiconductor material, sealing the upper surface of the porous semiconductor material by annealing, and forming a second semiconductor layer atop the porous semiconductor material.

摘要翻译： 提供了具有现有技术的SOI衬底的所有优点的半导体材料，包括例如低寄生电容和泄漏，而不具有浮体效应。 更具体地说，本发明提供一种包括顶部半导体层和底部半导体层的半导体激光器（SOP）材料，其中半导体层通过多孔半导体材料在至少一个区域中分离。 还提供了包括作为基板的SOP材料的半导体结构以及制造SOP材料的方法。 该方法包括：形成具有第一半导体层的p型区域，将p型区域转换为多孔半导体材料，通过退火密封多孔半导体材料的上表面，以及在多孔半导体材料的顶部形成第二半导体层 。