公开(公告)号：US20120292705A1

公开(公告)日：2012-11-22

申请号：US13108290

申请日：2011-05-16

申请人： Kangguo Cheng ,  Bruce B. Doris ,  Balasubramanian S. Haran ,  Ali Khakifirooz ,  Pranita Kulkarni ,  Ghavam G. Shahidi

发明人： Kangguo Cheng ,  Bruce B. Doris ,  Balasubramanian S. Haran ,  Ali Khakifirooz ,  Pranita Kulkarni ,  Ghavam G. Shahidi

IPC分类号： H01L27/092

CPC分类号： H01L27/1203 ,  H01L21/823864 ,  H01L21/823892

摘要： A semiconductor structure which includes a semiconductor on insulator (SOI) substrate. The SOI substrate includes a base semiconductor layer; a buried oxide (BOX) layer in contact with the base semiconductor layer; and an SOI layer in contact with the BOX layer. The semiconductor structure further includes a circuit formed with respect to the SOI layer, the circuit including an N type field effect transistor (NFET) having source and drain extensions in the SOI layer and a gate; and a P type field effect transistor (PFET) having source and drain extensions in the SOI layer and a gate. There may also be a well under each of the NFET and PFET. There is a nonzero electrical bias being applied to the. SOI substrate. One of the NFET extensions and PFET extensions may be underlapped with respect to the NFET gate or PFET gate, respectively.

摘要翻译： 一种半导体结构，其包括绝缘体上半导体（SOI）基板。 SOI衬底包括基极半导体层; 与基底半导体层接触的掩埋氧化物（BOX）层; 以及与BOX层接触的SOI层。 半导体结构还包括相对于SOI层形成的电路，该电路包括在SOI层中具有源极和漏极延伸的N型场效应晶体管（NFET）和栅极; 以及在SOI层中具有源极和漏极延伸的P型场效应晶体管（PFET）和栅极。 每个NFET和PFET下面也可以有一个阱。 有一个非零的电偏压被施加到。 SOI衬底。 NFET扩展和PFET扩展中的一个可能分别相对于NFET栅极或PFET栅极被覆盖。

公开(公告)号：US20120280290A1

公开(公告)日：2012-11-08

申请号：US13102073

申请日：2011-05-06

申请人： Ali Khakifirooz ,  Kangguo Cheng ,  Bruce B. Doris ,  Wilfried E. Haensch ,  Balasubramanian S. Haran ,  Pranita Kulkarni

发明人： Ali Khakifirooz ,  Kangguo Cheng ,  Bruce B. Doris ,  Wilfried E. Haensch ,  Balasubramanian S. Haran ,  Pranita Kulkarni

IPC分类号： H01L29/772 ,  H01L21/28

CPC分类号： H01L27/0207 ,  H01L21/28518 ,  H01L21/76802 ,  H01L21/76895 ,  H01L21/76897 ,  H01L21/823425 ,  H01L21/823437 ,  H01L21/823475 ,  H01L27/1104 ,  H01L29/41783 ,  H01L29/66545 ,  H01L29/6659 ,  H01L29/7834

摘要： A common cut mask is employed to define a gate pattern and a local interconnect pattern so that local interconnect structures and gate structures are formed with zero overlay variation relative to one another. A local interconnect structure may be laterally spaced from a gate structure in a first horizontal direction, and contact another gate structure in a second horizontal direction that is different from the first horizontal direction. Further, a gate structure may be formed to be collinear with a local interconnect structure that adjoins the gate structure. The local interconnect structures and the gate structures are formed by a common damascene processing step so that the top surfaces of the gate structures and the local interconnect structures are coplanar with each other.

摘要翻译： 采用公共切割掩模来限定栅极图案和局部互连图案，使得局部互连结构和栅极结构相对于彼此形成为零覆盖变化。 局部互连结构可以在第一水平方向上与栅极结构横向间隔开，并且在与第一水平方向不同的第二水平方向上接触另一个栅极结构。 此外，栅极结构可以形成为与邻接栅极结构的局部互连结构共线。 局部互连结构和栅极结构通过公共镶嵌处理步骤形成，使得栅极结构的顶表面和局部互连结构彼此共面。

公开(公告)号：US20130175579A1

公开(公告)日：2013-07-11

申请号：US13347161

申请日：2012-01-10

申请人： Kangguo Cheng ,  Ali Khakifirooz ,  Sivananda Kanakasabapathy ,  Pranita Kulkarni ,  Balasubramanian S. Haran

发明人： Kangguo Cheng ,  Ali Khakifirooz ,  Sivananda Kanakasabapathy ,  Pranita Kulkarni ,  Balasubramanian S. Haran

IPC分类号： H01L29/78 ,  H01L21/335

CPC分类号： H01L29/66795 ,  H01L29/66545 ,  H01L29/7848 ,  H01L29/785

摘要： A transistor includes a first semiconductor layer. A second semiconductor layer is located on the first semiconductor layer. A portion of the second semiconductor layer is removed to expose a first portion of the first semiconductor layer and to provide vertical sidewalls of the second semiconductor layer. A gate spacer is located on the second semiconductor layer. A gate dielectric includes a first portion located on the first portion of the first semiconductor layer and a second portion adjacent to the vertical sidewalls of the second semiconductor layer. A gate conductor is located on the first portion of the gate dielectric and abuts the gate dielectric second portion. A channel region is located in at least part of the first portion of the first semiconductor layer. Raised source/drain regions are located in the second semiconductor layer. At least part of the raised source/drain regions is located below the gate spacer.

摘要翻译： 晶体管包括第一半导体层。 第二半导体层位于第一半导体层上。 去除第二半导体层的一部分以暴露第一半导体层的第一部分并提供第二半导体层的垂直侧壁。 栅极间隔物位于第二半导体层上。 栅极电介质包括位于第一半导体层的第一部分上的第一部分和与第二半导体层的垂直侧壁相邻的第二部分。 栅极导体位于栅极电介质的第一部分上并邻接栅极电介质第二部分。 沟道区位于第一半导体层的第一部分的至少一部分中。 上升的源极/漏极区域位于第二半导体层中。 凸起的源极/漏极区域的至少一部分位于栅极间隔物的下方。

公开(公告)号：US08399957B2

公开(公告)日：2013-03-19

申请号：US13082491

申请日：2011-04-08

申请人： Kangguo Cheng ,  Balasubramanian S. Haran ,  Ali Khakifirooz ,  Ghavam G. Shahidi

发明人： Kangguo Cheng ,  Balasubramanian S. Haran ,  Ali Khakifirooz ,  Ghavam G. Shahidi

IPC分类号： H01L29/06

CPC分类号： H01L29/66742 ,  H01L21/26506 ,  H01L21/2652 ,  H01L21/26586 ,  H01L21/743 ,  H01L21/76229 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/78648

摘要： Doped semiconductor back gate regions self-aligned to active regions are formed by first patterning a top semiconductor layer and a buried insulator layer to form stacks of a buried insulator portion and a semiconductor portion. Oxygen is implanted into an underlying semiconductor layer at an angle so that oxygen-implanted regions are formed in areas that are not shaded by the stack or masking structures thereupon. The oxygen implanted portions are converted into deep trench isolation structures that are self-aligned to sidewalls of the active regions, which are the semiconductor portions in the stacks. Dopant ions are implanted into the portions of the underlying semiconductor layer between the deep trench isolation structures to form doped semiconductor back gate regions. A shallow trench isolation structure is formed on the deep trench isolation structures and between the stacks.

摘要翻译： 通过首先构图顶部半导体层和掩埋绝缘体层来形成与有源区域自对准的掺杂半导体背栅极区域，以形成埋入绝缘体部分和半导体部分的堆叠。 将氧气以一定角度注入到下面的半导体层中，使得注氧区域形成在不被叠层或掩模结构遮蔽的区域中。 氧注入部分被转换成深沟槽隔离结构，其与作为堆叠中的半导体部分的有源区的侧壁自对准。 将掺杂离子注入深沟槽隔离结构之间的底层半导体层的部分，以形成掺杂半导体背栅区。 在深沟槽隔离结构和堆叠之间形成浅沟槽隔离结构。

公开(公告)号：US20120256260A1

公开(公告)日：2012-10-11

申请号：US13082491

申请日：2011-04-08

申请人： Kangguo Cheng ,  Balasubramanian S. Haran ,  Ali Khakifirooz ,  Ghavam G. Shahidi

发明人： Kangguo Cheng ,  Balasubramanian S. Haran ,  Ali Khakifirooz ,  Ghavam G. Shahidi

IPC分类号： H01L29/78 ,  H01L21/336

CPC分类号： H01L29/66742 ,  H01L21/26506 ,  H01L21/2652 ,  H01L21/26586 ,  H01L21/743 ,  H01L21/76229 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/78648

摘要： Doped semiconductor back gate regions self-aligned to active regions are formed by first patterning a top semiconductor layer and a buried insulator layer to form stacks of a buried insulator portion and a semiconductor portion. Oxygen is implanted into an underlying semiconductor layer at an angle so that oxygen-implanted regions are formed in areas that are not shaded by the stack or masking structures thereupon. The oxygen implanted portions are converted into deep trench isolation structures that are self-aligned to sidewalls of the active regions, which are the semiconductor portions in the stacks. Dopant ions are implanted into the portions of the underlying semiconductor layer between the deep trench isolation structures to form doped semiconductor back gate regions. A shallow trench isolation structure is formed on the deep trench isolation structures and between the stacks.

摘要翻译： 通过首先构图顶部半导体层和掩埋绝缘体层来形成与有源区域自对准的掺杂半导体背栅极区域，以形成埋入绝缘体部分和半导体部分的堆叠。 将氧气以一定角度注入到下面的半导体层中，使得注氧区域形成在不被叠层或掩模结构遮蔽的区域中。 氧注入部分被转换成深沟槽隔离结构，其与作为堆叠中的半导体部分的有源区的侧壁自对准。 将掺杂离子注入深沟槽隔离结构之间的底层半导体层的部分，以形成掺杂半导体背栅区。 在深沟槽隔离结构和堆叠之间形成浅沟槽隔离结构。

公开(公告)号：US09054211B2

公开(公告)日：2015-06-09

申请号：US13540801

申请日：2012-07-03

申请人： Kangguo Cheng ,  Bruce B. Doris ,  Ali Khakifirooz ,  Pranita Kulkarni ,  Ghavam G. Shahidi

发明人： Kangguo Cheng ,  Bruce B. Doris ,  Ali Khakifirooz ,  Pranita Kulkarni ,  Ghavam G. Shahidi

IPC分类号： H01L27/088 ,  H01L21/8234 ,  H01L21/8238 ,  H01L29/66 ,  H01L29/78

CPC分类号： H01L21/823431 ,  H01L21/823412 ,  H01L21/823807 ,  H01L21/823821 ,  H01L29/66795 ,  H01L29/7843 ,  H01L29/7846 ,  H01L29/785

摘要： An FET device structure has a Fin-FET device with a fin of a Si based material. An oxide element is abutting the fin and exerts pressure onto the fin. The Fin-FET device channel is compressively stressed due to the pressure on the fin. A further FET device structure has Fin-FET devices in a row. An oxide element extending perpendicularly to the row of fins is abutting the fins and exerts pressure onto the fins. Device channels of the Fin-FET devices are compressively stressed due to the pressure on the fins.

摘要翻译： FET器件结构具有具有Si基材料的翅片的Fin-FET器件。 氧化物元件邻接翅片并对翅片施加压力。 Fin-FET器件通道由于鳍上的压力而受到压缩应力。 另外的FET器件结构具有Fin-FET器件。 垂直于翅片排延伸的氧化物元件邻接散热片并对翅片施加压力。 Fin-FET器件的器件通道由于鳍片上的压力而受到压缩应力。

公开(公告)号：US08994085B2

公开(公告)日：2015-03-31

申请号：US13551714

申请日：2012-07-18

申请人： Veeraraghavan S. Basker ,  Kangguo Cheng ,  Bruce B. Doris ,  Terence B. Hook ,  Ali Khakifirooz ,  Pranita Kulkarni ,  Tenko Yamashita ,  Chun-Chen Yeh

发明人： Veeraraghavan S. Basker ,  Kangguo Cheng ,  Bruce B. Doris ,  Terence B. Hook ,  Ali Khakifirooz ,  Pranita Kulkarni ,  Tenko Yamashita ,  Chun-Chen Yeh

IPC分类号： H01L27/108 ,  H01L29/76 ,  H01L29/94 ,  H01L31/119 ,  H01L21/84 ,  H01L27/11 ,  H01L27/12

CPC分类号： H01L21/84 ,  H01L27/10861 ,  H01L27/1087 ,  H01L27/10873 ,  H01L27/10894 ,  H01L27/10897 ,  H01L27/1108 ,  H01L27/1116 ,  H01L27/1203 ,  H01L29/945

摘要： An integrated circuit comprising an N+ type layer, a buffer layer arranged on the N+ type layer; a P type region formed on with the buffer layer; an insulator layer overlying the N+ type layer, a silicon layer overlying the insulator layer, an embedded RAM FET formed in the silicon layer and connected with a conductive node of a trench capacitor that extends into the N+ type layer, the N+ type layer forming a plate electrode of the trench capacitor, a first contact through the silicon layer and the insulating layer and electrically connecting to the N+ type layer, a first logic RAM FET formed in the silicon layer above the P type region, the P type region functional as a P-type back gate of the first logic RAM FET, and a second contact through the silicon layer and the insulating layer and electrically connecting to the P type region.

摘要翻译： 一种集成电路，包括N +型层，设置在N +型层上的缓冲层; 形成在缓冲层上的P型区域; 覆盖N +型层的绝缘体层，覆盖绝缘体层的硅层，形成在硅层中并与延伸到N +型层的沟槽电容器的导电节点连接的嵌入式RAM FET，N +型层形成 沟槽电容器的平板电极，通过硅层和绝缘层的第一接触并且电连接到N +型层，形成在P型区域上方的硅层中的第一逻辑RAM FET，P型区域用作 第一逻辑RAM FET的P型背栅，以及通过硅层和绝缘层的第二接触，并且电连接到P型区域。

公开(公告)号：US08653596B2

公开(公告)日：2014-02-18

申请号：US13344885

申请日：2012-01-06

申请人： Kangguo Cheng ,  Bruce B. Doris ,  Terence B. Hook ,  Ali Khakifirooz ,  Pranita Kulkarni

发明人： Kangguo Cheng ,  Bruce B. Doris ,  Terence B. Hook ,  Ali Khakifirooz ,  Pranita Kulkarni

IPC分类号： H01L21/70 ,  H01L27/12 ,  H01L21/762 ,  H01L21/84

CPC分类号： H01L29/945 ,  H01L21/84 ,  H01L27/1052 ,  H01L27/1087 ,  H01L27/10873 ,  H01L27/10894 ,  H01L27/1116 ,  H01L27/1203 ,  H01L27/1207

摘要： An integrated circuit includes an SOI substrate with a unitary N+ layer below the BOX, a P region in the N+ layer, an eDRAM with an N+ plate, and logic/SRAM devices above the P region. The P region functions as a back gate of the logic/SRAM devices. An optional intrinsic (undoped) layer can be formed between the P back gate layer and the N+ layer to reduce the junction field and lower the junction leakage between the P back gate and the N+ layer. In another embodiment an N or N+ back gate can be formed in the P region. The N+ back gate functions as a second back gate of the logic/SRAM devices. The N+ plate of the SOI eDRAM, the P back gate, and the N+ back gate can be electrically biased at the same or different voltage potentials. Methods to fabricate the integrated circuits are also disclosed.

摘要翻译： 集成电路包括在BOX下方具有单一N +层的SOI衬底，N +层中的P区，N +板的eDRAM和P区上方的逻辑/ SRAM器件。 P区域用作逻辑/ SRAM器件的后门。 可以在P背栅层和N +层之间形成可选的本征（未掺杂）层，以减少结场并降低P背栅与N +层之间的结泄漏。 在另一个实施例中，可以在P区中形成N或N +背栅。 N +后门作为逻辑/ SRAM器件的第二个后门。 SOI eDRAM的N +板，P背栅极和N +背栅极可以在相同或不同的电压电位下被电偏置。 还公开了制造集成电路的方法。

公开(公告)号：US20140024215A1

公开(公告)日：2014-01-23

申请号：US13555306

申请日：2012-07-23

申请人： Kangguo Cheng ,  Bruce B. Doris ,  Ali Khakifirooz ,  Ying Zhang

发明人： Kangguo Cheng ,  Bruce B. Doris ,  Ali Khakifirooz ,  Ying Zhang

IPC分类号： B44C1/22 ,  H01B13/00 ,  H01L21/308

CPC分类号： H01L21/3086 ,  H01B13/00 ,  H01B19/04 ,  H01L21/0337 ,  H01L21/3081 ,  H01L21/32134 ,  H01L21/32137

摘要： Disclosed is an improved double patterning method for forming openings (e.g., vias or trenches) or mesas on a substrate. This method avoids the wafer topography effects seen in prior art double patterning techniques by ensuring that the substrate itself is only subjected to a single etch process. Specifically, in the method, a first mask layer is formed on the substrate and processed such that it has a doped region and multiple undoped regions within the doped region. Then, either the undoped regions or the doped region can be selectively removed in order to form a mask pattern above the substrate. Once the mask pattern is formed, an etch process can be performed to transfer the mask pattern into the substrate. Depending upon whether the undoped regions are removed or the doped region is removed, the mask pattern will form openings (e.g., vias or trenches) or mesas, respectively, on the substrate.

摘要翻译： 公开了一种用于在基板上形成开口（例如，通孔或沟槽）或台面的改进的双重图案化方法。 该方法通过确保衬底本身仅经历单次蚀刻工艺来避免现有技术的双重图案化技术中所见到的晶片形貌效应。 具体地说，在该方法中，在衬底上形成第一掩模层并进行处理，使得其在掺杂区域内具有掺杂区域和多个未掺杂区域。 然后，可以选择性地去除未掺杂区域或掺杂区域，以在衬底上方形成掩模图案。 一旦形成掩模图案，就可以执行蚀刻工艺以将掩模图案转印到基板中。 取决于未掺杂的区域是去除还是去除掺杂区域，掩模图案将分别在衬底上形成开口（例如，通孔或沟槽）或台面。

公开(公告)号：US08629504B2

公开(公告)日：2014-01-14

申请号：US13433401

申请日：2012-03-29

申请人： Bruce B. Doris ,  Kangguo Cheng ,  Ali Khakifirooz ,  Ghavam G. Shahidi

发明人： Bruce B. Doris ,  Kangguo Cheng ,  Ali Khakifirooz ,  Ghavam G. Shahidi

IPC分类号： H01L21/00

CPC分类号： H01L27/1214 ,  H01L21/84 ,  H01L27/1203 ,  H01L27/13

摘要： An electrical device is provided that in one embodiment includes a semiconductor-on-insulator (SOI) substrate having a semiconductor layer with a thickness of less than 10 nm. A semiconductor device having a raised source region and a raised drain region of a single crystal semiconductor material of a first conductivity is present on a first surface of the semiconductor layer. A resistor composed of the single crystal semiconductor material of the first conductivity is present on a second surface of the semiconductor layer. A method of forming the aforementioned electrical device is also provided.

摘要翻译： 提供了一种电气装置，其在一个实施例中包括具有厚度小于10nm的半导体层的绝缘体上半导体（SOI）基板。 在半导体层的第一表面上存在具有第一导电性的单晶半导体材料的升高的源极区域和升高的漏极区域的半导体器件。 由第一导电性的单晶半导体材料构成的电阻器存在于半导体层的第二表面上。 还提供了形成上述电气装置的方法。