Method for forming a semiconductor device having a strained channel and a heterojunction source/drain
    2.
    发明授权
    Method for forming a semiconductor device having a strained channel and a heterojunction source/drain 失效
    用于形成具有应变通道和异质结源极/漏极的半导体器件的方法

    公开(公告)号:US07018901B1

    公开(公告)日:2006-03-28

    申请号:US10954121

    申请日:2004-09-29

    IPC分类号: H01L21/336

    摘要: A semiconductor device (10) is formed by positioning a gate (22) overlying a semiconductor layer (16) of preferably silicon. A semiconductor material (26) of, for example only, SiGe or Ge, is formed adjacent the gate over the semiconductor layer and over source/drain regions. A thermal process diffuses the stressor material into the semiconductor layer. Lateral diffusion occurs to cause the formation of a strained channel (17) in which a stressor material layer (30) is immediately adjacent the strained channel. Extension implants create source and drain implants from a first portion of the stressor material layer. A second portion of the stressor material layer remains in the channel between the strained channel and the source and drain implants. A heterojunction is therefore formed in the strained channel. In another form, oxidation of the stressor material occurs rather than extension implants to form the strained channel.

    摘要翻译: 半导体器件(10)通过将覆盖在优选硅的半导体层(16)上的栅极(22)定位而形成。 例如仅SiGe或Ge的半导体材料(26)形成在半导体层上方的栅极和源极/漏极区域附近。 热处理将应力源材料扩散到半导体层。 发生横向扩散以形成应变通道(17),其中应力材料层(30)紧邻应变通道。 延伸植入物从应力源材料层的第一部分产生源和漏植入物。 应力源材料层的第二部分保留在应变通道和源极和漏极植入物之间的通道中。 因此,在应变通道中形成异质结。 在另一种形式中,发生应力源材料的氧化而不是延伸植入物以形成应变通道。

    Electronic devices including a semiconductor layer and a process for forming the same
    3.
    发明授权
    Electronic devices including a semiconductor layer and a process for forming the same 有权
    包括半导体层的电子器件及其形成方法

    公开(公告)号:US07265004B2

    公开(公告)日:2007-09-04

    申请号:US11273092

    申请日:2005-11-14

    IPC分类号: H01L21/84

    摘要: An electronic device can include a first semiconductor portion and a second semiconductor portion, wherein the compositions of the first and second semiconductor portions are different from each other. In one embodiment, the first and second semiconductor portions can have different stresses compared to each other. In one embodiment, the electronic device may be formed by forming an oxidation mask over the first semiconductor portion. A second semiconductor layer can be formed over the second semiconductor portion of the first semiconductor layer and have a different composition compared to the first semiconductor layer. An oxidation can be performed, and a concentration of a semiconductor element (e.g., germanium) within the second portion of the first semiconductor layer can be increased. In another embodiment, a selective condensation may be performed, and a field isolation region can be formed between the first and second portions of the first semiconductor layer.

    摘要翻译: 电子设备可以包括第一半导体部分和第二半导体部分,其中第一半导体部分和第二半导体部分的组成彼此不同。 在一个实施例中,第一和第二半导体部分可以具有彼此不同的应力。 在一个实施例中,可以通过在第一半导体部分上形成氧化掩模来形成电子器件。 可以在第一半导体层的第二半导体部分上形成第二半导体层,并且与第一半导体层相比具有不同的组成。 可以进行氧化,并且可以增加第一半导体层的第二部分内的半导体元素(例如锗)的浓度。 在另一个实施例中,可以执行选择性冷凝,并且可以在第一半导体层的第一和第二部分之间形成场隔离区。

    Electronic devices including a semiconductor layer
    5.
    发明授权
    Electronic devices including a semiconductor layer 有权
    包括半导体层的电子器件

    公开(公告)号:US07821067B2

    公开(公告)日:2010-10-26

    申请号:US11836844

    申请日:2007-08-10

    IPC分类号: H01L21/84

    摘要: An electronic device can include a first semiconductor portion and a second semiconductor portion, wherein the compositions of the first and second semiconductor portions are different from each other. In one embodiment, the first and second semiconductor portions can have different stresses compared to each other. In one embodiment, the electronic device may be formed by forming an oxidation mask over the first semiconductor portion. A second semiconductor layer can be formed over the second semiconductor portion of the first semiconductor layer and have a different composition compared to the first semiconductor layer. An oxidation can be performed, and a concentration of a semiconductor element (e.g., germanium) within the second portion of the first semiconductor layer can be increased. In another embodiment, a selective condensation may be performed, and a field isolation region can be formed between the first and second portions of the first semiconductor layer.

    摘要翻译: 电子设备可以包括第一半导体部分和第二半导体部分,其中第一半导体部分和第二半导体部分的组成彼此不同。 在一个实施例中,第一和第二半导体部分可以具有彼此不同的应力。 在一个实施例中,可以通过在第一半导体部分上形成氧化掩模来形成电子器件。 可以在第一半导体层的第二半导体部分上形成第二半导体层,并且与第一半导体层相比具有不同的组成。 可以进行氧化,并且可以增加第一半导体层的第二部分内的半导体元素(例如锗)的浓度。 在另一个实施例中,可以执行选择性冷凝,并且可以在第一半导体层的第一和第二部分之间形成场隔离区。

    Integrated circuit with different channel materials for P and N channel transistors and method therefor
    6.
    发明授权
    Integrated circuit with different channel materials for P and N channel transistors and method therefor 有权
    用于P和N沟道晶体管的不同沟道材料的集成电路及其方法

    公开(公告)号:US07700420B2

    公开(公告)日:2010-04-20

    申请号:US11402395

    申请日:2006-04-12

    IPC分类号: H01L21/00 H01L21/84

    摘要: A substrate includes a first region and a second region. The first region comprises a III-nitride layer, and the second region comprises a first semiconductor layer. A first transistor (such as an n-type transistor) is formed in and on the III-nitride layer, and a second transistor (such as a p-type transistor) is formed in and on the first semiconductor layer. The III-nitride layer may be indium nitride. In the first region, the substrate may include a second semiconductor layer, a graded transition layer over the second semiconductor layer, and a buffer layer over the transition layer, where the III-nitride layer is over the buffer layer. In the second region, the substrate may include the second semiconductor layer and an insulating layer over the second semiconductor layer, where the first semiconductor layer is over the insulating layer.

    摘要翻译: 衬底包括第一区域和第二区域。 第一区域包括III族氮化物层,第二区域包括第一半导体层。 在III族氮化物层上形成第一晶体管(例如n型晶体管),并且在第一半导体层上形成第二晶体管(例如p型晶体管)。 III族氮化物层可以是氮化铟。 在第一区域中,衬底可以包括第二半导体层,在第二半导体层上的渐变过渡层,以及过渡层上的缓冲层,其中III族氮化物层在缓冲层之上。 在第二区域中,衬底可以包括第二半导体层和在第二半导体层上的绝缘层,其中第一半导体层在绝缘层之上。

    Semiconductor device structure and method therefor
    7.
    发明授权
    Semiconductor device structure and method therefor 有权
    半导体器件结构及其方法

    公开(公告)号:US07226833B2

    公开(公告)日:2007-06-05

    申请号:US10977423

    申请日:2004-10-29

    IPC分类号: H01L21/8234

    摘要: Two different transistors types are made on different crystal orientations in which both are formed on SOI. A substrate has an underlying semiconductor layer of one of the crystal orientations and an overlying layer of the other crystal orientation. The underlying layer has a portion exposed on which is epitaxially grown an oxygen-doped semiconductor layer that maintains the crystalline structure of the underlying semiconductor layer. A semiconductor layer is then epitaxially grown on the oxygen-doped semiconductor layer. An oxidation step at elevated temperatures causes the oxide-doped region to separate into oxide and semiconductor regions. The oxide region is then used as an insulation layer in an SOI structure and the overlying semiconductor layer that is left is of the same crystal orientation as the underlying semiconductor layer. Transistors of the different types are formed on the different resulting crystal orientations.

    摘要翻译: 在不同的晶体取向上制作了两种不同的晶体管类型,其中两者都形成在SOI上。 衬底具有晶体取向之一的底层半导体层和另一晶体取向的上覆层。 底层具有暴露在其上的部分外延生长保持下面的半导体层的晶体结构的氧掺杂半导体层。 然后在氧掺杂半导体层上外延生长半导体层。 在高温下的氧化步骤使得氧化物掺杂区域分离成氧化物和半导体区域。 然后将氧化物区域用作SOI结构中的绝缘层,并且剩下的上覆半导体层具有与下面的半导体层相同的晶体取向。 不同类型的晶体管形成在不同的结晶取向上。

    Graded semiconductor layer
    9.
    发明授权
    Graded semiconductor layer 有权
    分级半导体层

    公开(公告)号:US07241647B2

    公开(公告)日:2007-07-10

    申请号:US10919952

    申请日:2004-08-17

    IPC分类号: H01L21/00

    摘要: A process for forming a semiconductor device. The process includes forming a template layer for forming a layer of strained silicon. In one example a layer of graded silicon germanium is formed where the germanium is at a higher concentration at the lower portion and at a lower concentration at a top portion. When subject to a condensation process, the germanium of the top portion of the layer diffuses to a remaining portion of the silicon germanium layer. Because the silicon germanium layer has a higher concentration of germanium at lower portions, germanium pile up after condensation may be reduced at the upper portion of the remaining portion of the silicon germanium layer.

    摘要翻译: 一种形成半导体器件的方法。 该方法包括形成用于形成应变硅层的模板层。 在一个示例中,形成梯度硅锗层,其中锗在下部处具有较高的浓度,在顶部处的浓度较低。 当进行冷凝处理时,层的顶部的锗扩散到硅锗层的剩余部分。 由于硅锗层在下部具有较高的锗浓度,所以在硅锗层的剩余部分的上部可以减少在冷凝后堆积的锗。