Semiconductor device and method for fabricating the same
    3.
    发明申请
    Semiconductor device and method for fabricating the same 审中-公开
    半导体装置及其制造方法

    公开(公告)号:US20060154425A1

    公开(公告)日:2006-07-13

    申请号:US11032439

    申请日:2005-01-10

    IPC分类号: H01L21/336

    摘要: A semiconductor device and method for fabricating the same. The semiconductor device comprises a substrate with a gate stack thereon, wherein the gate stack comprises a high-k dielectric layer and a conductive layer sequentially overlying a portion of the substrate. An oxidation-proof layer overlies sidewalls of the gate stack. A pair of insulating spacers oppositely overlies sidewalls of the gate stack and the oxidation-proof layers thereon and a pair of source/drain regions is oppositely formed in the substrate adjacent to the gate stack, wherein the oxidation-proof layer suppresses oxidation encroachment between the gate stack and the substrate.

    摘要翻译: 一种半导体器件及其制造方法。 半导体器件包括其上具有栅极堆叠的衬底,其中栅极堆叠包括高k电介质层和顺序地覆盖衬底的一部分的导电层。 防氧化层覆盖在栅叠层的侧壁上。 一对绝缘隔片相对地覆盖在栅堆叠的侧壁和其上的防氧化层上,并且一对源极/漏极区域相邻地形成在与栅极叠层相邻的衬底中,其中防氧化层抑制了栅极叠层之间的氧化侵蚀 栅极堆叠和衬底。

    Noble high-k device
    6.
    发明授权
    Noble high-k device 有权
    高贵的高k设备

    公开(公告)号:US07351994B2

    公开(公告)日:2008-04-01

    申请号:US10762164

    申请日:2004-01-21

    IPC分类号: H01L29/06 H01L21/336

    摘要: At least one high-k device, and a method for forming the at least one high-k device, comprising the following. A structure having a strained substrate formed thereover. The strained substrate comprising at least an uppermost strained-Si epi layer. At least one dielectric gate oxide portion over the strained substrate. The at least one dielectric gate oxide portion having a dielectric constant of greater than about 4.0. A device over each of the at least one dielectric gate oxide portion to complete the least one high-k device. A method of forming the at least one high-k device.

    摘要翻译: 至少一个高k装置和用于形成至少一个高k装置的方法包括以下。 具有在其上形成的应变衬底的结构。 应变衬底包括至少最上层的应变Si外延层。 在应变衬底上的至少一个电介质栅极氧化物部分。 所述至少一个电介质栅极氧化物部分具有大于约4.0的介电常数。 在所述至少一个电介质栅极氧化物部分中的每一个上方的器件,以完成所述至少一个高k器件。 一种形成所述至少一个高k装置的方法。

    Process for integration of a high dielectric constant gate insulator layer in a CMOS device
    7.
    发明授权
    Process for integration of a high dielectric constant gate insulator layer in a CMOS device 失效
    在CMOS器件中集成高介电常数栅极绝缘体层的工艺

    公开(公告)号:US06914313B2

    公开(公告)日:2005-07-05

    申请号:US10696007

    申请日:2003-10-29

    IPC分类号: H01L21/8238 H01L29/76

    摘要: A CMOS device structure, and a method of fabricating the CMOS device, featuring a gate insulator layer comprised of a high k metal oxide layer, has been developed. The process features formation of recessed, heavily doped source/drain regions, and of vertical, polysilicon LDD spacers, prior to deposition of the high k metal oxide layer. Removal of a silicon nitride shape, previously used as a mask for definition of the recessed regions, which in turn are used for accommodation of the heavily doped source/drain regions, provides the space to be occupied by the high k metal oxide layer. The integrity of the high k, gate insulator layer, butted by the vertical polysilicon spacers, and overlying a channel region provided by the non-recessed portion of the semiconductor substrate, is preserved via delayed deposition of the metal oxide layer, performed after high temperature anneals such as the activation anneal for heavily doped source/drain regions, as well as the anneal used for metal silicide formation.

    摘要翻译: 已经开发了CMOS器件结构,以及制造具有由高k金属氧化物层构成的栅极绝缘体层的CMOS器件的方法。 在沉积高k金属氧化物层之前,该工艺特征是形成凹陷的,重掺杂的源极/漏极区域以及垂直的多晶硅LDD间隔物。 先前用作凹陷区域的掩模的氮化硅形状的去除,其又用于重掺杂源极/漏极区域的适应,提供了由高k金属氧化物层占据的空间。 通过延迟沉积金属氧化物层,在高温下进行保存,通过垂直多晶硅间隔物对接的高k栅极绝缘体层的完整性,并覆盖由半导体衬底的非凹陷部分提供的沟道区域 退火如重掺杂源极/漏极区的激活退火,以及用于金属硅化物形成的退火。