FinFETs and methods for forming the same
    1.
    发明授权
    FinFETs and methods for forming the same 有权
    FinFET及其形成方法

    公开(公告)号:US08912602B2

    公开(公告)日:2014-12-16

    申请号:US12758426

    申请日:2010-04-12

    IPC分类号: H01L27/12 H01L29/78 H01L29/66

    CPC分类号: H01L29/785 H01L29/66795

    摘要: A Fin field effect transistor includes a fin disposed over a substrate. A gate is disposed over a channel portion of the fin. A source region is disposed at a first end of the fin. A drain region is disposed at a second end of the fin. The source region and the drain region are spaced from the substrate by at least one air gap.

    摘要翻译: Fin场效应晶体管包括设置在衬底上的鳍。 门设置在翅片的通道部分上。 源极区域设置在鳍片的第一端。 漏极区域设置在鳍片的第二端。 源极区域和漏极区域与衬底间隔开至少一个气隙。

    Reducing resistance in source and drain regions of FinFETs
    2.
    发明授权
    Reducing resistance in source and drain regions of FinFETs 有权
    降低FinFET源极和漏极区域的电阻

    公开(公告)号:US07939889B2

    公开(公告)日:2011-05-10

    申请号:US11873156

    申请日:2007-10-16

    摘要: A semiconductor structure includes a semiconductor fin on a top surface of a substrate, wherein the semiconductor fin includes a middle section having a first width; and a first and a second end section connected to opposite ends of the middle section, wherein the first and the second end sections each comprises at least a top portion having a second width greater than the first width. The semiconductor structure further includes a gate dielectric layer on a top surface and sidewalls of the middle section of the semiconductor fin; and a gate electrode on the gate dielectric layer.

    摘要翻译: 半导体结构包括在基板的顶面上的半导体翅片,其中半导体鳍片包括具有第一宽度的中间部分; 以及连接到中间部分的相对端部的第一和第二端部分,其中第一和第二端部部分至少包括具有大于第一宽度的第二宽度的顶部部分。 半导体结构还包括在半导体鳍片的顶表面和中间部分的侧壁上的栅介质层; 以及栅极电介质层上的栅电极。

    Semiconductor device having multiple fin heights
    3.
    发明授权
    Semiconductor device having multiple fin heights 有权
    具有多个翅片高度的半导体器件

    公开(公告)号:US07843000B2

    公开(公告)日:2010-11-30

    申请号:US12484900

    申请日:2009-06-15

    IPC分类号: H01L29/76 H01L29/94

    CPC分类号: H01L29/7851 H01L29/66795

    摘要: A semiconductor device having multiple fin heights is provided. Multiple fin heights are provided by using multiple masks to recess a dielectric layer within a trench formed in a substrate. In another embodiment, an implant mold or e-beam lithography are utilized to form a pattern of trenches in a photoresist material. Subsequent etching steps form corresponding trenches in the underlying substrate. In yet another embodiment, multiple masking layers are used to etch trenches of different heights separately. A dielectric region may be formed along the bottom of the trenches to isolate the fins by performing an ion implant and a subsequent anneal.

    摘要翻译: 提供具有多个翅片高度的半导体器件。 通过使用多个掩模来在形成在衬底中的沟槽内凹入电介质层来提供多个翅片高度。 在另一个实施例中,使用植入模具或电子束光刻来形成光致抗蚀剂材料中的沟槽图案。 随后的蚀刻步骤在下面的衬底中形成对应的沟槽。 在另一个实施例中,使用多个掩模层来分别蚀刻不同高度的沟槽。 可以沿着沟槽的底部形成电介质区域,以通过执行离子注入和随后的退火来隔离散热片。

    Semiconductor device having multiple fin heights
    4.
    发明授权
    Semiconductor device having multiple fin heights 有权
    具有多个翅片高度的半导体器件

    公开(公告)号:US07560785B2

    公开(公告)日:2009-07-14

    申请号:US11741580

    申请日:2007-04-27

    IPC分类号: H01L29/76 H01L29/94

    CPC分类号: H01L29/7851 H01L29/66795

    摘要: A semiconductor device having multiple fin heights is provided. Multiple fin heights are provided by using multiple masks to recess a dielectric layer within a trench formed in a substrate. In another embodiment, an implant mold or e-beam lithography are utilized to form a pattern of trenches in a photoresist material. Subsequent etching steps form corresponding trenches in the underlying substrate. In yet another embodiment, multiple masking layers are used to etch trenches of different heights separately. A dielectric region may be formed along the bottom of the trenches to isolate the fins by performing an ion implant and a subsequent anneal.

    摘要翻译: 提供具有多个翅片高度的半导体器件。 通过使用多个掩模来在形成在衬底中的沟槽内凹入电介质层来提供多个翅片高度。 在另一个实施例中,使用植入模具或电子束光刻来形成光致抗蚀剂材料中的沟槽图案。 随后的蚀刻步骤在下面的衬底中形成对应的沟槽。 在另一个实施例中,使用多个掩模层来分别蚀刻不同高度的沟槽。 可以沿着沟槽的底部形成电介质区域,以通过执行离子注入和随后的退火来隔离散热片。

    Reducing Resistance in Source and Drain Regions of FinFETs
    5.
    发明申请
    Reducing Resistance in Source and Drain Regions of FinFETs 有权
    降低FinFET源极和漏极区域的电阻

    公开(公告)号:US20090095980A1

    公开(公告)日:2009-04-16

    申请号:US11873156

    申请日:2007-10-16

    IPC分类号: H01L29/778 H01L29/786

    摘要: A semiconductor structure includes a semiconductor fin on a top surface of a substrate, wherein the semiconductor fin includes a middle section having a first width; and a first and a second end section connected to opposite ends of the middle section, wherein the first and the second end sections each comprises at least a top portion having a second width greater than the first width. The semiconductor structure further includes a gate dielectric layer on a top surface and sidewalls of the middle section of the semiconductor fin; and a gate electrode on the gate dielectric layer.

    摘要翻译: 半导体结构包括在基板的顶面上的半导体翅片,其中半导体鳍片包括具有第一宽度的中间部分; 以及连接到中间部分的相对端部的第一和第二端部分,其中第一和第二端部部分至少包括具有大于第一宽度的第二宽度的顶部部分。 半导体结构还包括在半导体鳍片的顶表面和中间部分的侧壁上的栅介质层; 以及栅极电介质层上的栅电极。

    Germanium FinFETs Having Dielectric Punch-Through Stoppers
    8.
    发明申请
    Germanium FinFETs Having Dielectric Punch-Through Stoppers 有权
    具有介质穿孔塞的锗FinFET

    公开(公告)号:US20120025313A1

    公开(公告)日:2012-02-02

    申请号:US13272994

    申请日:2011-10-13

    IPC分类号: H01L27/12 H01L29/02

    摘要: A method of forming a semiconductor structure includes providing a composite substrate, which includes a bulk silicon substrate and a silicon germanium (SiGe) layer over and adjoining the bulk silicon substrate. A first condensation is performed to the SiGe layer to form a condensed SiGe layer, so that the condensed SiGe layer has a substantially uniform germanium concentration. The condensed SiGe layer and a top portion of the bulk silicon substrate are etched to form a composite fin including a silicon fin and a condensed SiGe fin over the silicon fin. The method further includes oxidizing a portion of the silicon fin; and performing a second condensation to the condensed SiGe fin.

    摘要翻译: 形成半导体结构的方法包括提供复合衬底,该复合衬底包括在本体硅衬底上并邻接体硅衬底的体硅衬底和硅锗(SiGe)层。 对SiGe层进行第一次冷凝以形成冷凝的SiGe层,使得冷凝的SiGe层具有基本均匀的锗浓度。 蚀刻冷凝的SiGe层和体硅衬底的顶部以在硅片上形成包括硅翅片和冷凝的SiGe鳍的复合翅片。 该方法还包括氧化硅片的一部分; 并对冷凝的SiGe翅片进行第二冷凝。

    Germanium FinFETs having dielectric punch-through stoppers
    9.
    发明授权
    Germanium FinFETs having dielectric punch-through stoppers 有权
    锗FinFET具有绝缘穿孔塞

    公开(公告)号:US08048723B2

    公开(公告)日:2011-11-01

    申请号:US12329279

    申请日:2008-12-05

    IPC分类号: H01L21/332

    摘要: A method of forming a semiconductor structure includes providing a composite substrate, which includes a bulk silicon substrate and a silicon germanium (SiGe) layer over and adjoining the bulk silicon substrate. A first condensation is performed to the SiGe layer to form a condensed SiGe layer, so that the condensed SiGe layer has a substantially uniform germanium concentration. The condensed SiGe layer and a top portion of the bulk silicon substrate are etched to form a composite fin including a silicon fin and a condensed SiGe fin over the silicon fine. The method further includes oxidizing a portion of the silicon fin; and performing a second condensation to the condensed SiGe fin.

    摘要翻译: 形成半导体结构的方法包括提供复合衬底,该复合衬底包括在本体硅衬底上并邻接体硅衬底的体硅衬底和硅锗(SiGe)层。 对SiGe层进行第一次冷凝以形成冷凝的SiGe层,使得冷凝的SiGe层具有基本均匀的锗浓度。 蚀刻冷凝的SiGe层和体硅衬底的顶部以形成包括硅片和在硅微细上的冷凝的SiGe鳍的复合翅片。 该方法还包括氧化硅片的一部分; 并对冷凝的SiGe翅片进行第二冷凝。

    Semiconductor Device Having Multiple Fin Heights
    10.
    发明申请
    Semiconductor Device Having Multiple Fin Heights 有权
    具有多个翅片高度的半导体器件

    公开(公告)号:US20110037129A1

    公开(公告)日:2011-02-17

    申请号:US12912522

    申请日:2010-10-26

    IPC分类号: H01L29/78

    CPC分类号: H01L29/7851 H01L29/66795

    摘要: A semiconductor device having multiple fin heights is provided. Multiple fin heights are provided by using multiple masks to recess a dielectric layer within a trench formed in a substrate. In another embodiment, an implant mold or e-beam lithography are utilized to form a pattern of trenches in a photoresist material. Subsequent etching steps form corresponding trenches in the underlying substrate. In yet another embodiment, multiple masking layers are used to etch trenches of different heights separately. A dielectric region may be formed along the bottom of the trenches to isolate the fins by performing an ion implant and a subsequent anneal.

    摘要翻译: 提供具有多个翅片高度的半导体器件。 通过使用多个掩模来在形成在衬底中的沟槽内凹入电介质层来提供多个翅片高度。 在另一个实施例中,使用植入模具或电子束光刻来形成光致抗蚀剂材料中的沟槽图案。 随后的蚀刻步骤在下面的衬底中形成对应的沟槽。 在另一个实施例中,使用多个掩模层来分别蚀刻不同高度的沟槽。 可以沿着沟槽的底部形成电介质区域,以通过执行离子注入和随后的退火来隔离散热片。