Threshold Adjustment for High-K Gate Dielectric CMOS
    31.
    发明申请
    Threshold Adjustment for High-K Gate Dielectric CMOS 审中-公开
    高K栅介质CMOS的阈值调整

    公开(公告)号:US20080272437A1

    公开(公告)日:2008-11-06

    申请号:US11743101

    申请日:2007-05-01

    IPC分类号: H01L27/092 H01L21/3205

    摘要: A CMOS structure is disclosed in which a first type FET has an extremely thin oxide liner. This thin liner is capable of preventing oxygen from reaching the high-k dielectric gate insulator of the first type FET. A second type FET device of the CMOS structure has a thicker oxide liner. As a result, an oxygen exposure is capable to shift the threshold voltage of the second type of FET, without affecting the threshold value of the first type FET. The disclosure also teaches methods for producing the CMOS structure in which differing type of FET devices have differing thickness liners, and the threshold values of the differing type of FET devices is set independently from one another.

    摘要翻译: 公开了一种CMOS结构,其中第一类型FET具有极薄的氧化物衬垫。 该薄衬套能够防止氧气到达第一类型FET的高k电介质栅极绝缘体。 CMOS结构的第二种FET器件具有较厚的氧化物衬垫。 结果,氧暴露能够移动第二类型FET的阈值电压,而不影响第一类型FET的阈值。 本公开还教导了用于制造CMOS结构的方法,其中不同类型的FET器件具有不同的厚度衬垫,并且不同类型的FET器件的阈值彼此独立地设置。

    Metal oxynitride as a pFET material
    33.
    发明申请
    Metal oxynitride as a pFET material 有权
    金属氮氧化物作为pFET材料

    公开(公告)号:US20070138578A1

    公开(公告)日:2007-06-21

    申请号:US11311455

    申请日:2005-12-19

    IPC分类号: H01L29/78 H01L21/336

    摘要: A compound metal comprising MOxNy which is a p-type metal having a workfunction of about 4.75 to about 5.3, preferably about 5, eV that is thermally stable on a gate stack comprising a high k dielectric and an interfacial layer is provided as well as a method of fabricating the MOxNy compound metal. Furthermore, the MOxNy metal compound of the present invention is a very efficient oxygen diffusion barrier at 1000° C. allowing very aggressive equivalent oxide thickness (EOT) and inversion layer thickness scaling below 14 Å in a p-metal oxide semiconductor (PMOS) device. In the above formula, M is a metal selected from Group IVB, VB, VIB or VIIB of the Periodic Table of Elements, x is from about 5 to about 40 atomic % and y is from about 5 to about 40 atomic %.

    摘要翻译: 一种复合金属,其包含具有约4.75至约5.3,优选约5eV的功函数的p型金属,其在一个或多个金属上是热稳定的 提供了包括高k电介质和界面层的栅极叠层以及制造复合金属的方法。 此外,本发明的金属氧化物金属化合物在1000℃下是非常有效的氧扩散阻挡层,允许非常有效的等效氧化物厚度(EOT)和反演 在p-金属氧化物半导体(PMOS)器件中的层厚度缩小到14埃以下。 在上式中,M是选自元素周期表第IVB,VB,VIB或VIIB族的金属,x为约5至约40原子%,y为约5至约40原子%。

    Threshold Adjustment for High-K Gate Dielectric CMOS
    36.
    发明申请
    Threshold Adjustment for High-K Gate Dielectric CMOS 有权
    高K栅介质CMOS的阈值调整

    公开(公告)号:US20090291553A1

    公开(公告)日:2009-11-26

    申请号:US12535554

    申请日:2009-08-04

    IPC分类号: H01L21/8238

    摘要: A CMOS structure is disclosed in which a first type FET has an extremely thin oxide liner. This thin liner is capable of preventing oxygen from reaching the high-k dielectric gate insulator of the first type FET. A second type FET device of the CMOS structure has a thicker oxide liner. As a result, an oxygen exposure is capable to shift the threshold voltage of the second type of FET, without affecting the threshold value of the first type FET. The disclosure also teaches methods for producing the CMOS structure in which differing type of FET devices have differing thickness liners, and the threshold values of the differing type of FET devices is set independently from one another.

    摘要翻译: 公开了一种CMOS结构,其中第一类型FET具有极薄的氧化物衬垫。 该薄衬套能够防止氧气到达第一类型FET的高k电介质栅极绝缘体。 CMOS结构的第二种FET器件具有较厚的氧化物衬垫。 结果,氧暴露能够移动第二类型FET的阈值电压,而不影响第一类型FET的阈值。 本公开还教导了用于制造CMOS结构的方法,其中不同类型的FET器件具有不同的厚度衬垫,并且不同类型的FET器件的阈值彼此独立地设置。

    Simple Low Power Circuit Structure with Metal Gate and High-k Dielectric
    39.
    发明申请
    Simple Low Power Circuit Structure with Metal Gate and High-k Dielectric 有权
    具有金属栅极和高k介质的简单低功耗电路结构

    公开(公告)号:US20090039434A1

    公开(公告)日:2009-02-12

    申请号:US11835310

    申请日:2007-08-07

    IPC分类号: H01L27/092 H01L21/8238

    摘要: FET device structures are disclosed with the PFET and NFET devices having high-k dielectric gate insulators and metal containing gates. The metal layers of the gates in both the NFET and PFET devices have been fabricated from a single common metal layer. Due to the single common metal, device fabrication is simplified, requiring a reduced number of masks. Also, as a further consequence of using a single layer of metal for the gates of both type of devices, the terminal electrodes of NFETs and PFETs can be butted to each other in direct physical contact. Device thresholds are adjusted by the choice of the common metal material and oxygen exposure of the high-k dielectric. Threshold values are aimed for low power consumption device operation.

    摘要翻译: 公开了具有高k介质栅极绝缘体和含金属栅极的PFET和NFET器件的FET器件结构。 NFET和PFET器件中的栅极的金属层已经由单个公共金属层制造。 由于单个普通金属,器件制造简化,需要减少数量的掩模。 此外,作为使用单层金属作为两种类型的器件的栅极的进一步的结果,NFET和PFET的端子电极可以直接物理接触地彼此对接。 通过选择普通金属材料和高k电介质的氧气曝光来调节器件阈值。 阈值是针对低功耗设备操作的。