Gallium nitride on silicon with a thermal expansion transition buffer layer
    52.
    发明申请
    Gallium nitride on silicon with a thermal expansion transition buffer layer 审中-公开
    具有热膨胀过渡缓冲层的硅上的氮化镓

    公开(公告)号:US20080173895A1

    公开(公告)日:2008-07-24

    申请号:US11657149

    申请日:2007-01-24

    IPC分类号: H01L29/267 H01L21/20

    摘要: A method is provided for forming a matching thermal expansion interface between silicon (Si) and gallium nitride (GaN) films. The method provides a (111) Si substrate with a first thermal expansion coefficient (TEC), and forms a silicon-germanium (SiGe) film overlying the Si substrate. A buffer layer is deposited overlying the SiGe film. The buffer layer may be aluminum nitride (AlN) or aluminum-gallium nitride (AlGaN). A GaN film is deposited overlying the buffer layer having a second TEC, greater than the first TEC. The SiGe film has a third TEC, with a value in between the first and second TECs. In one aspect, a graded SiGe film may be formed having a Ge content ratio in a range of about 0% to 50%, where the Ge content increases with the graded SiGe film thickness.

    摘要翻译: 提供了一种在硅(Si)和氮化镓(GaN)膜之间形成匹配的热膨胀界面的方法。 该方法提供具有第一热膨胀系数(TEC)的(111)Si衬底,并且形成覆盖Si衬底的硅 - 锗(SiGe)膜。 沉积SiGe膜上的缓冲层。 缓冲层可以是氮化铝(AlN)或铝 - 氮化镓(AlGaN)。 沉积GaN缓冲层,其具有大于第一TEC的第二TEC。 SiGe电影拥有第三个TEC,其值在第一和第二TEC之间。 一方面,可以形成具有Ge含量比在约0%至50%的范围内的等级SiGe膜,其中Ge含量随着梯度SiGe膜厚度而增加。

    Thermal Expansion Transition Buffer Layer for Gallium Nitride on Silicon
    53.
    发明申请
    Thermal Expansion Transition Buffer Layer for Gallium Nitride on Silicon 审中-公开
    硅上氮化镓的热膨胀转变缓冲层

    公开(公告)号:US20080315255A1

    公开(公告)日:2008-12-25

    申请号:US12199144

    申请日:2008-08-27

    IPC分类号: H01L29/267

    摘要: A method is provided for forming a matching thermal expansion interface between silicon (Si) and gallium nitride (GaN) films. The method provides a (111) Si substrate with a first thermal expansion coefficient (TEC), and forms a silicon-germanium (SiGe) film overlying the Si substrate. A buffer layer is deposited overlying the SiGe film. The buffer layer may be aluminum nitride (AlN) or aluminum-gallium nitride (AlGaN). A GaN film is deposited overlying the buffer layer having a second TEC, greater than the first TEC. The SiGe film has a third TEC, with a value in between the first and second TECs. In one aspect, a graded SiGe film may be formed having a Ge content ratio in a range of about 0% to 50%, where the Ge content increases with the graded SiGe film thickness.

    摘要翻译: 提供了一种在硅(Si)和氮化镓(GaN)膜之间形成匹配的热膨胀界面的方法。 该方法提供具有第一热膨胀系数(TEC)的(111)Si衬底,并且形成覆盖Si衬底的硅 - 锗(SiGe)膜。 沉积SiGe膜上的缓冲层。 缓冲层可以是氮化铝(AlN)或铝 - 氮化镓(AlGaN)。 沉积GaN缓冲层,其具有大于第一TEC的第二TEC。 SiGe电影拥有第三个TEC,其值在第一和第二TEC之间。 一方面,可以形成具有Ge含量比在约0%至50%的范围内的等级SiGe膜,其中Ge含量随着梯度SiGe膜厚度而增加。

    Gallium nitride-on-silicon interface using multiple aluminum compound buffer layers
    56.
    发明申请
    Gallium nitride-on-silicon interface using multiple aluminum compound buffer layers 失效
    使用多个铝化合物缓冲层的氮化镓 - 硅 - 硅界面

    公开(公告)号:US20090008647A1

    公开(公告)日:2009-01-08

    申请号:US11825427

    申请日:2007-07-06

    IPC分类号: H01L29/15 H01L21/20

    摘要: A thermal expansion interface between silicon (Si) and gallium nitride (GaN) films using multiple buffer layers of aluminum compounds has been provided, along with an associated fabrication method. The method provides a (111) Si substrate and deposits a first layer of AlN overlying the substrate by heating the substrate to a relatively high temperature of 1000 to 1200° C. A second layer of AlN is deposited overlying the first layer of AlN at a lower temperature of 500 to 800° C. A third layer of AlN is deposited overlying the second layer of AlN by heating the substrate to the higher temperature range. Then, a grading Al1-XGaXN layer is formed overlying the third layer of AlN, where 0

    摘要翻译: 已经提供了使用多种铝化合物缓冲层的硅(Si)和氮化镓(GaN)膜之间的热膨胀界面,以及相关的制造方法。 该方法提供(111)Si衬底,并通过将衬底加热至1000至1200℃的较高温度,将衬底上的第一层AlN沉积在衬底上。在第一层AlN上沉积第二层AlN, 较低温度为500至800℃。通过将衬底加热到​​较高温度范围,沉积第三层AlN,覆盖第二层AlN。 然后,形成覆盖在第一层次Al1-XGaXN层上的固定组成Al1-XGaXN层的覆盖在第三层AlN上的分级Al1-XGaXN层,其中0

    Gallium nitride-on-silicon multilayered interface
    57.
    发明申请
    Gallium nitride-on-silicon multilayered interface 审中-公开
    氮化镓 - 硅多层界面

    公开(公告)号:US20080296625A1

    公开(公告)日:2008-12-04

    申请号:US11810022

    申请日:2007-06-04

    IPC分类号: H01L29/06 H01L21/20

    摘要: A multilayer thermal expansion interface between silicon (Si) and gallium nitride (GaN) films is provided, along with an associated fabrication method. The method provides a (111) Si substrate and forms a first layer of a first film overlying the substrate. The Si substrate is heated to a temperature in the range of about 300 to 800° C., and the first layer of a second film is formed in compression overlying the first layer of the first film. Using a lateral nanoheteroepitaxy overgrowth (LNEO) process, a first GaN layer is grown overlying the first layer of second film. Then, the above-mentioned processes are repeated: forming a second layer of first film; heating the substrate to a temperature in the range of about 300 to 800° C.; forming a second layer of second film in compression; and, growing a second GaN layer using the LNEO process.

    摘要翻译: 提供硅(Si)和氮化镓(GaN)膜之间的多层热膨胀界面以及相关的制造方法。 该方法提供(111)Si衬底并且形成覆盖衬底的第一膜的第一层。 将Si衬底加热至约300至800℃的温度,并且第二膜的第一层以压缩形式覆盖第一膜的第一层。 使用横向纳米外延过度生长(LNEO)工艺,生长第一GaN层,覆盖第一层第二层膜。 然后,重复上述过程:形成第二层第一膜; 将基板加热至约300至800℃的温度; 在压缩中形成第二层第二膜; 并且使用LNEO工艺生长第二GaN层。

    Method to form local “silicon-on-nothing” or “silicon-on-insulator” wafers with tensile-strained silicon
    60.
    发明授权
    Method to form local “silicon-on-nothing” or “silicon-on-insulator” wafers with tensile-strained silicon 有权
    用拉伸应变硅形成局部“无硅无硅”或“绝缘体上硅”晶片的方法

    公开(公告)号:US07018882B2

    公开(公告)日:2006-03-28

    申请号:US10807931

    申请日:2004-03-23

    IPC分类号: H01L21/8238 H01L21/336

    摘要: A method of forming a substrate for use in IC device fabrication includes preparing a silicon substrate, including doping a bulk silicon (100) substrate with ions taken from the group of ions to form a doped substrate taken from the group of doped substrates consisting of n-type doped substrates and p-type doped substrates; forming a first relaxed SiGe layer on the silicon substrate; forming a first tensile-strained silicon cap on the first relaxed SiGe layer; forming a second relaxed SiGe layer on the first tensile-strained silicon cap; forming a second tensile-strained silicon cap on the second relaxed SiGe layer; and completing an IC device.

    摘要翻译: 一种形成用于IC器件制造的衬底的方法包括制备硅衬底,其包括用从离子组中取出的离子掺杂体硅(100)衬底,以形成从由n组成的掺杂衬底组中取出的掺杂衬底 型掺杂衬底和p型掺杂衬底; 在硅衬底上形成第一弛豫的SiGe层; 在第一松弛SiGe层上形成第一拉伸应变硅帽; 在第一拉伸应变硅帽上形成第二松弛SiGe层; 在第二松弛SiGe层上形成第二拉伸应变硅帽; 并完成IC设备。