公开(公告)号：US20120112281A1

公开(公告)日：2012-05-10

申请号：US13349883

申请日：2012-01-13

Applicant: Rohit PAL ,  Stephan Waidmann

Inventor： Rohit PAL ,  Stephan Waidmann

IPC: H01L27/12

CPC classification number: H01L29/7848 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823864 ,  H01L21/84 ,  H01L27/1203 ,  H01L29/6653 ,  H01L29/6656 ,  H01L29/78

Abstract: Semiconductor devices with high-K/metal gates are formed with spacers that are substantially resistant to subsequent etching to remove an overlying spacer, thereby avoiding replacement and increasing manufacturing throughput. Embodiments include forming a high-K/metal gate, having an upper surface and side surfaces, over a substrate, e.g., a SOI substrate, and sequentially forming, on the side surfaces of the high-K/metal gate, a first spacer of a non-oxide material, a second spacer, of a material different from that of the first spacer, and a third spacer, of a material different from that of the second spacer. After formation of source and drain regions, e.g., epitaxially grown silicon-germanium, the third spacer is etched with an etchant, such as hot phosphoric acid, to which the second spacer is substantially resistant, thereby avoiding replacement.

Abstract translation: 具有高K /金属栅极的半导体器件由间隔物形成，其具有基本上抵抗后续蚀刻以去除上覆间隔物，从而避免替换并增加制造生产量。 实施例包括在衬底（例如SOI衬底）上形成具有上表面和侧表面的高K /金属栅极，并且在高K /金属栅极的侧表面上依次形成第一间隔物 不同于第一间隔物的材料的非氧化物材料，第二间隔物和与第二间隔物不同的材料的第三间隔物。 在形成源极和漏极区域，例如外延生长的硅 - 锗之后，用蚀刻剂（例如热磷酸）蚀刻第三间隔物，第二间隔物基本上抵抗其上，从而避免更换。

公开(公告)号：US20110169083A1

公开(公告)日：2011-07-14

申请号：US12687607

申请日：2010-01-14

Applicant: Bin YANG ,  Rohit PAL ,  Michael HARGROVE

Inventor： Bin YANG ,  Rohit PAL ,  Michael HARGROVE

IPC: H01L29/786 ,  H01L21/86

CPC classification number: H01L21/84 ,  H01L21/845 ,  H01L23/485 ,  H01L27/12 ,  H01L27/1211

Abstract: A method of fabricating a semiconductor device with back side conductive plugs is provided here. The method begins by forming a gate structure overlying a semiconductor-on-insulator (SOI) substrate. The SOI substrate has a support layer, an insulating layer overlying the support layer, an active semiconductor region overlying the insulating layer, and an isolation region outboard of the active semiconductor region. A first section of the gate structure is formed overlying the isolation region and a second section of the gate structure is formed overlying the active semiconductor region. The method continues by forming source/drain regions in the active semiconductor region, and thereafter removing the support layer from the SOI substrate. Next, the method forms conductive plugs for the gate structure and the source/drain regions, where each of the conductive plugs passes through the insulating layer.

Abstract translation: 此处提供制造具有背面导电插头的半导体器件的方法。 该方法通过形成覆盖绝缘体上半导体（SOI）衬底的栅极结构开始。 SOI衬底具有支撑层，覆盖在支撑层上的绝缘层，覆盖绝缘层的有源半导体区域和有源半导体区域外侧的隔离区域。 栅极结构的第一部分形成在隔离区域的上方，栅极结构的第二部分形成在有源半导体区域的上方。 该方法通过在有源半导体区域中形成源极/漏极区域继续，然后从SOI衬底去除支撑层。 接下来，该方法形成用于栅极结构和源极/漏极区域的导电插塞，其中每个导电插塞穿过绝缘层。

公开(公告)号：US20120129311A1

公开(公告)日：2012-05-24

申请号：US13355221

申请日：2012-01-20

Applicant: Rohit PAL ,  Frank Bin YANG ,  Michael J. HARGROVE

Inventor： Rohit PAL ,  Frank Bin YANG ,  Michael J. HARGROVE

IPC: H01L21/336

CPC classification number: H01L29/66636 ,  H01L21/26506 ,  H01L21/26586 ,  H01L21/3065 ,  H01L29/165 ,  H01L29/665 ,  H01L29/66659 ,  H01L29/7848

Abstract: Semiconductor transistor devices and related fabrication methods are provided. An exemplary transistor device includes a layer of semiconductor material having a channel region defined therein and a gate structure overlying the channel region. Recesses are formed in the layer of semiconductor material adjacent to the channel region, such that the recesses extend asymmetrically toward the channel region. The transistor device also includes stress-inducing semiconductor material formed in the recesses. The asymmetric profile of the stress-inducing semiconductor material enhances carrier mobility in a manner that does not exacerbate the short channel effect.

Abstract translation: 提供半导体晶体管器件及相关制造方法。 示例性晶体管器件包括其中限定有沟道区的半导体材料层和覆盖沟道区的栅极结构。 凹槽在与沟道区相邻的半导体材料层中形成，使得凹槽朝向沟道区不对称地延伸。 晶体管器件还包括形成在凹槽中的应力诱导半导体材料。 应力诱导半导体材料的不对称轮廓以不会加剧短通道效应的方式提高载流子迁移率。

公开(公告)号：US20110169073A1

公开(公告)日：2011-07-14

申请号：US13052969

申请日：2011-03-21

Applicant: Rohit PAL ,  Frank Bin YANG ,  Michael J. HARGROVE

Inventor： Rohit PAL ,  Frank Bin YANG ,  Michael J. HARGROVE

IPC: H01L29/78

CPC classification number: H01L29/66636 ,  H01L21/26506 ,  H01L21/26586 ,  H01L21/3065 ,  H01L29/165 ,  H01L29/665 ,  H01L29/66659 ,  H01L29/7848

Abstract: Semiconductor transistor devices and related fabrication methods are provided. An exemplary transistor device includes a layer of semiconductor material having a channel region defined therein and a gate structure overlying the channel region. Recesses are formed in the layer of semiconductor material adjacent to the channel region, such that the recesses extend asymmetrically toward the channel region. The transistor device also includes stress-inducing semiconductor material formed in the recesses. The asymmetric profile of the stress-inducing semiconductor material enhances carrier mobility in a manner that does not exacerbate the short channel effect.

Abstract translation: 提供半导体晶体管器件及相关制造方法。 示例性晶体管器件包括其中限定有沟道区的半导体材料层和覆盖沟道区的栅极结构。 凹槽在与沟道区相邻的半导体材料层中形成，使得凹槽朝向沟道区不对称地延伸。 晶体管器件还包括形成在凹槽中的应力诱导半导体材料。 应力诱导半导体材料的不对称轮廓以不会加剧短通道效应的方式提高载流子迁移率。

公开(公告)号：US20100012988A1

公开(公告)日：2010-01-21

申请号：US12176916

申请日：2008-07-21

Applicant: Frank Bin YANG ,  Michael J. HARGROVE ,  Rohit PAL

Inventor： Frank Bin YANG ,  Michael J. HARGROVE ,  Rohit PAL

IPC: H01L29/00 ,  H01L21/8236

CPC classification number: H01L21/26506 ,  H01L21/26513 ,  H01L21/26586 ,  H01L29/165 ,  H01L29/6659 ,  H01L29/66628 ,  H01L29/66636 ,  H01L29/7833 ,  H01L29/7848

Abstract: Semiconductor devices and methods for fabricating semiconductor devices are provided. One exemplary method comprises providing a silicon-comprising substrate having a first surface, etching a recess into the first surface, the recess having a side surface and a bottom surface, implanting carbon ions into the side surface and the bottom surface, and forming an impurity-doped, silicon-comprising region overlying the side surface and the bottom surface.

Abstract translation: 提供了用于制造半导体器件的半导体器件和方法。 一种示例性方法包括提供具有第一表面的含硅衬底，将凹陷蚀刻到第一表面中，凹部具有侧表面和底表面，将碳离子注入侧表面和底表面，以及形成杂质 掺杂的，覆盖侧表面和底表面的含硅区域。

公开(公告)号：US20100012975A1

公开(公告)日：2010-01-21

申请号：US12176835

申请日：2008-07-21

Applicant: Rohit PAL ,  Frank Bin YANG ,  Michael J. HARGROVE

Inventor： Rohit PAL ,  Frank Bin YANG ,  Michael J. HARGROVE

IPC: H01L29/778 ,  H01L21/336

CPC classification number: H01L29/66636 ,  H01L21/26506 ,  H01L21/26586 ,  H01L21/3065 ,  H01L29/165 ,  H01L29/665 ,  H01L29/66659 ,  H01L29/7848

Abstract: Semiconductor transistor devices and related fabrication methods are provided. An exemplary transistor device includes a layer of semiconductor material having a channel region defined therein and a gate structure overlying the channel region. Recesses are formed in the layer of semiconductor material adjacent to the channel region, such that the recesses extend asymmetrically toward the channel region. The transistor device also includes stress-inducing semiconductor material formed in the recesses. The asymmetric profile of the stress-inducing semiconductor material enhances carrier mobility in a manner that does not exacerbate the short channel effect.

Abstract translation: 提供半导体晶体管器件及相关制造方法。 示例性晶体管器件包括其中限定有沟道区的半导体材料层和覆盖沟道区的栅极结构。 凹槽在与沟道区相邻的半导体材料层中形成，使得凹槽朝向沟道区不对称地延伸。 晶体管器件还包括形成在凹槽中的应力诱导半导体材料。 应力诱导半导体材料的不对称轮廓以不会加剧短通道效应的方式提高载流子迁移率。

公开(公告)号：US20090170223A1

公开(公告)日：2009-07-02

申请号：US11964935

申请日：2007-12-27

Applicant: Rohit PAL ,  Alok VAID ,  Kevin LENSING

Inventor： Rohit PAL ,  Alok VAID ,  Kevin LENSING

IPC: H01L21/66

CPC classification number: H01L22/12 ,  C30B25/16 ,  C30B29/06 ,  H01L21/02532 ,  H01L22/20

Abstract: Methods are provided for calibrating a process for growing an epitaxial silicon-comprising film and for growing an epitaxial silicon-comprising film. One method comprises epitaxially growing a first silicon-comprising film on a first silicon substrate that has an adjacent non-crystalline-silicon structure that extends from said first silicon substrate. The step of epitaxially growing uses hydrochloric acid provided at a first hydrochloric acid flow rate for a first time period. A morphology of the first film relevant to the adjacent non-crystalline-silicon structure is analyzed and a thickness of the first film is measured. The first flow rate is adjusted to a second flow rate based on the morphology of the first film. The first time period is adjusted to a second time period based on the second flow rate and the thickness. A second silicon-comprising film on a second silicon substrate is epitaxially grown for the second time period using the second flow rate.

Abstract translation: 提供了用于校准用于生长外延含硅膜并用于生长外延含硅膜的工艺的方法。 一种方法包括在具有从所述第一硅衬底延伸的相邻非晶硅结构的第一硅衬底上外延生长第一含硅膜。 外延生长的步骤使用以第一次盐酸流速提供的盐酸第一次。 分析与相邻的非晶硅结构相关的第一膜的形态，并测量第一膜的厚度。 基于第一膜的形态将第一流量调节到第二流量。 基于第二流量和厚度将第一时间段调整到第二时间段。 使用第二流量，在第二时间段外延生长第二硅衬底上的第二含硅膜。

公开(公告)号：US20110086495A1

公开(公告)日：2011-04-14

申请号：US12577628

申请日：2009-10-12

Applicant: Rohit PAL ,  Janice MONZET

Inventor： Rohit PAL ,  Janice MONZET

IPC: H01L21/20 ,  H01L21/306 ,  H01L21/3205

CPC classification number: H01L21/823807 ,  H01L21/31111 ,  H01L21/823878

Abstract: Methods for fabricating semiconductor devices are provided. The methods include providing a semiconductor substrate having pFET and nFET regions, each having active areas and shallow trench isolation. A hardmask layer is formed overlying the semiconductor substrate. A photoresist layer is provided over the hardmask layer. The phoresist layer is patterned. An exposed portion of the hardmask layer is removed from one of the pFET region and nFET region with the patterned photoresist acting as an etch mask to define a masked region and an unmasked region. An epitaxial silicon layer is formed on the active area in the unmasked region. A protective oxide layer is formed overlying the epitaxial silicon layer. The hardmask layer is removed from the masked region with the protective oxide layer protecting the epitaxial silicon layer during such removal step. The protective oxide layer is removed from the epitaxial silicon layer.

Abstract translation: 提供制造半导体器件的方法。 所述方法包括提供具有pFET和nFET区域的半导体衬底，每个具有有源区和浅沟槽隔离。 形成覆盖半导体衬底的硬掩模层。 在硬掩模层上提供光致抗蚀剂层。 光刻胶层被图案化。 硬掩模层的暴露部分从pFET区域和nFET区域中的一个去除，图案化的光致抗蚀剂用作蚀刻掩模以限定掩蔽区域和未掩模区域。 在未掩模区域的有源区域上形成外延硅层。 形成覆盖在外延硅层上的保护性氧化物层。 在这种去除步骤期间，保护氧化层保护外延硅层，从屏蔽区域去除硬掩模层。 从外延硅层去除保护氧化物层。

公开(公告)号：US20100210084A1

公开(公告)日：2010-08-19

申请号：US12771948

申请日：2010-04-30

Applicant: Frank Bin YANG ,  Rohit PAL ,  Michael J. HARGROVE

Inventor： Frank Bin YANG ,  Rohit PAL ,  Michael J. HARGROVE

IPC: H01L21/336 ,  H01L21/20

CPC classification number: H01L29/7847 ,  H01L29/66636

Abstract: Methods for forming a semiconductor device comprising a silicon-comprising substrate are provided. One exemplary method comprises depositing a polysilicon layer overlying the silicon-comprising substrate, amorphizing the polysilicon layer, etching the amorphized polysilicon layer to form a gate electrode, etching recesses into the substrate using the gate electrode as an etch mask, depositing a stress-inducing layer overlying the gate electrode, annealing the silicon-comprising substrate to recrystallize the gate electrode, removing the stress-inducing layer, and epitaxially growing impurity-doped, silicon-comprising regions in the recesses.

Abstract translation: 提供了用于形成包括含硅衬底的半导体器件的方法。 一种示例性方法包括沉积覆盖含硅衬底的多晶硅层，使多晶硅层非晶化，蚀刻非晶化多晶硅层以形成栅电极，使用栅电极作为蚀刻掩模将凹陷蚀刻到衬底中，沉积应力诱导 覆盖栅极电极，退火含硅衬底以使栅电极重结晶，去除应力诱导层，以及在凹槽中外延生长杂质掺杂的含硅区域。

公开(公告)号：US20100090289A1

公开(公告)日：2010-04-15

申请号：US12249570

申请日：2008-10-10

Applicant: Frank Bin YANG ,  Rohit PAL ,  Michael J. HARGROVE

Inventor： Frank Bin YANG ,  Rohit PAL ,  Michael J. HARGROVE

IPC: H01L47/00 ,  H01L21/3205

CPC classification number: H01L29/66636 ,  H01L21/02381 ,  H01L21/02433 ,  H01L21/02529 ,  H01L21/02532 ,  H01L21/02609 ,  H01L21/02636 ,  H01L29/045 ,  H01L29/41766 ,  H01L29/665 ,  H01L29/6653 ,  H01L29/66545 ,  H01L29/6656 ,  H01L29/66628 ,  H01L29/7848

Abstract: The disclosed subject matter relates to semiconductor transistor devices and associated fabrication techniques that can be utilized to form silicide contacts having an increased effective size, relative to conventional silicide contacts. A semiconductor device fabricated in accordance with the processes disclosed herein includes a layer of semiconductor material and a gate structure overlying the layer of semiconductor material. A channel region is formed in the layer of semiconductor material, the channel region underlying the gate structure. The semiconductor device also includes source and drain regions in the layer of semiconductor material, wherein the channel region is located between the source and drain regions. Moreover, the semiconductor device includes facet-shaped silicide contact areas overlying the source and drain regions.

Abstract translation: 所公开的主题涉及半导体晶体管器件和相关的制造技术，其可以用于形成相对于常规硅化物触点具有增加的有效尺寸的硅化物触点。 根据本文公开的方法制造的半导体器件包括覆盖半导体材料层的半导体材料层和栅极结构。 沟道区形成在半导体材料层中，栅极结构下方的沟道区。 半导体器件还包括半导体材料层中的源极和漏极区域，其中沟道区域位于源极和漏极区域之间。 此外，半导体器件包括覆盖源极和漏极区域的面形硅化物接触区域。