Field effect transistor and method of manufacture
    4.
    发明授权
    Field effect transistor and method of manufacture 有权
    场效应晶体管及其制造方法

    公开(公告)号:US08921190B2

    公开(公告)日:2014-12-30

    申请号:US12099175

    申请日:2008-04-08

    摘要: A semiconductor structure and method of manufacture and, more particularly, a field effect transistor that has a body contact and method of manufacturing the same is provided. The structure includes a device having a raised source region of a first conductivity type and an active region below the raised source region extending to a body of the device. The active region has a second conductivity type different than the first conductivity type. A contact region is in electric contact with the active region. The method includes forming a raised source region over an active region of a device and forming a contact region of a same conductivity type as the active region, wherein the active region forms a contact body between the contact region and a body of the device.

    摘要翻译: 提供一种半导体结构和制造方法,更具体地说,具有身体接触的场效应晶体管及其制造方法。 该结构包括具有第一导电类型的凸起源极区域和延伸到器件主体的凸起源极区域下方的有源区域的器件。 有源区具有不同于第一导电类型的第二导电类型。 接触区域与有源区域电接触。 该方法包括在器件的有源区上形成凸起的源极区域,并形成与有源区域相同的导电类型的接触区域,其中有源区域在接触区域和器件的主体之间形成接触体。

    SILICON-ON-INSULATOR (SOI) STRUCTURE CONFIGURED FOR REDUCED HARMONICS AND METHOD OF FORMING THE STRUCTURE
    6.
    发明申请
    SILICON-ON-INSULATOR (SOI) STRUCTURE CONFIGURED FOR REDUCED HARMONICS AND METHOD OF FORMING THE STRUCTURE 有权
    用于减少谐波的硅绝缘体(SOI)结构和形成结构的方法

    公开(公告)号:US20110127529A1

    公开(公告)日:2011-06-02

    申请号:US12627343

    申请日:2009-11-30

    IPC分类号: H01L27/12 H01L21/762

    摘要: Disclosed is semiconductor structure with an insulator layer on a semiconductor substrate and a device layer is on the insulator layer. The substrate is doped with a relatively low dose of a dopant having a given conductivity type such that it has a relatively high resistivity. Additionally, a portion of the semiconductor substrate immediately adjacent to the insulator layer can be doped with a slightly higher dose of the same dopant, a different dopant having the same conductivity type or a combination thereof. Optionally, micro-cavities are created within this same portion so as to balance out any increase in conductivity due to increased doping with a corresponding increase in resistivity. Increasing the dopant concentration at the semiconductor substrate-insulator layer interface raises the threshold voltage (Vt) of any resulting parasitic capacitors and, thereby reduces harmonic behavior. Also disclosed herein are embodiments of a method for forming such a semiconductor structure.

    摘要翻译: 公开了在半导体衬底上具有绝缘体层并且器件层位于绝缘体层上的半导体结构。 衬底掺杂有相对低剂量的具有给定导电类型的掺杂剂,使得其具有相对高的电阻率。 此外,与绝缘体层紧密相邻的半导体衬底的一部分可掺杂略高的相同掺杂剂剂量,具有相同导电类型的不同掺杂剂或其组合。 可选地,在该相同部分内形成微腔,以便平衡由于掺杂增加导致的电导率的增加,同时具有相应的电阻率增加。 增加半导体衬底 - 绝缘体层界面处的掺杂剂浓度会提高任何结果的寄生电容器的阈值电压(Vt),从而降低谐波行为。 本文还公开了用于形成这种半导体结构的方法的实施例。

    SOI radio frequency switch with enhanced electrical isolation
    7.
    发明授权
    SOI radio frequency switch with enhanced electrical isolation 有权
    SOI射频开关具有增强的电气隔离

    公开(公告)号:US08866226B2

    公开(公告)日:2014-10-21

    申请号:US13345871

    申请日:2012-01-09

    摘要: At least one conductive via structure is formed from an interconnect-level metal line through a middle-of-line (MOL) dielectric layer, a shallow trench isolation structure in a top semiconductor layer, and a buried insulator layer to a bottom semiconductor layer. The shallow trench isolation structure laterally abuts at least two field effect transistors that function as a radio frequency (RF) switch. The at least one conductive via structure and the at interconnect-level metal line may provide a low resistance electrical path from the induced charge layer in a bottom semiconductor layer to electrical ground, discharging the electrical charge in the induced charge layer. The discharge of the charge in the induced charge layer thus reduces capacitive coupling between the semiconductor devices and the bottom semiconductor layer, and thus secondary coupling between components electrically disconnected by the RF switch is reduced.

    摘要翻译: 至少一个导电通孔结构由通过中间线(MOL)电介质层的互连级金属线,顶部半导体层中的浅沟槽隔离结构和到半导体层的掩埋绝缘体层形成。 浅沟槽隔离结构横向邻接用作射频(RF)开关的至少两个场效应晶体管。 所述至少一个导电通孔结构和所述互连级金属线可以提供从底部半导体层中的感应电荷层到电接地的低电阻电路径,从而对感应电荷层中的电荷进行放电。 感应电荷层中的电荷的放电因此减小了半导体器件与底部半导体层之间的电容耦合,因此降低了由RF开关电断开的部件之间的二次耦合。

    High resistivity silicon-on-insulator substrate and method of forming
    8.
    发明授权
    High resistivity silicon-on-insulator substrate and method of forming 有权
    高电阻率硅绝缘体基板及其成型方法

    公开(公告)号:US08741739B2

    公开(公告)日:2014-06-03

    申请号:US13342697

    申请日:2012-01-03

    IPC分类号: H01L21/30

    CPC分类号: H01L29/16 H01L21/76254

    摘要: A semiconductor structure and a method of forming the same. In one embodiment, a method of forming a silicon-on-insulator (SOI) wafer substrate includes: providing a handle substrate; forming a high resistivity material layer over the handle substrate, the high resistivity material layer including one of an amorphous silicon carbide (SiC), a polycrystalline SiC, an amorphous diamond, or a polycrystalline diamond; forming an insulator layer over the high resistivity material layer; and bonding a donor wafer to a top surface of the insulator layer to form the SOI wafer substrate.

    摘要翻译: 半导体结构及其形成方法。 在一个实施例中,形成绝缘体上硅(SOI)晶片衬底的方法包括:提供处理衬底; 在所述手柄衬底上形成高电阻率材料层,所述高电阻率材料层包括非晶碳化硅(SiC),多晶SiC,无定形金刚石或多晶金刚石中的一种; 在所述高电阻率材料层上形成绝缘体层; 并将施主晶片接合到绝缘体层的顶表面以形成SOI晶片衬底。

    Silicon-on-insulator substrate and method of forming
    9.
    发明授权
    Silicon-on-insulator substrate and method of forming 失效
    绝缘体上硅衬底及其成型方法

    公开(公告)号:US08536035B2

    公开(公告)日:2013-09-17

    申请号:US13363603

    申请日:2012-02-01

    IPC分类号: H01L21/425

    CPC分类号: H01L21/76254

    摘要: Silicon-on-insulator (SOI) structures and related methods of forming such structures. In one case, a method includes providing a silicon-on-insulator (SOI) handle substrate having: a substantially uniform resistivity profile along a depth of the handle substrate; and an interstitial oxygen (Oi) concentration of less than approximately 10 parts per million atoms (ppma). The method further includes counter-doping a surface region of the handle, causing the surface region to have a resistivity greater than approximately 3 kOhm-cm, and joining the surface region of the handle substrate with a donor wafer.

    摘要翻译: 绝缘体上硅(SOI)结构和形成这种结构的相关方法。 在一种情况下,一种方法包括提供绝缘体上硅(SOI)手柄衬底,其具有:沿着手柄衬底的深度的基本均匀的电阻率分布; 和间隙氧(Oi)浓度小于约10ppm(ppma)。 所述方法还包括对所述手柄的表面区域进行反掺杂,使所述表面区域具有大于约3kOhm-cm的电阻率,并且将所述手柄衬底的表面区域与施主晶片接合。