公开(公告)号：US07944006B2

公开(公告)日：2011-05-17

申请号：US12014511

申请日：2008-01-15

申请人： Veeraraghavan S. Basker ,  Hariklia Deligianni ,  Rajarao Jammy ,  Vamsi Krishna Paruchuri ,  Lubomyr T. Romankiw

发明人： Veeraraghavan S. Basker ,  Hariklia Deligianni ,  Rajarao Jammy ,  Vamsi Krishna Paruchuri ,  Lubomyr T. Romankiw

IPC分类号： H01L29/78

CPC分类号： C25D3/567 ,  C25D5/02 ,  C25D7/12 ,  H01L21/28079 ,  H01L21/28088 ,  H01L21/28176 ,  H01L29/495 ,  H01L29/4966 ,  H01L29/517

摘要： Stabilized metal gate electrode for complementary metal-oxide-semiconductor (“CMOS”) applications and methods of making the stabilized metal gate electrodes are disclosed. Specifically, the metal gate electrodes are stabilized by alloying wherein the alloy comprises a metal selected from the group consisting of Re, Ru, Pt, Rh, Ni, Al and combinations thereof and an element selected from the group consisting of W, V, Ti, Ta and combinations thereof.

摘要翻译： 公开了用于互补金属氧化物半导体（“CMOS”）应用的稳定金属栅极电极和制造稳定的金属栅电极的方法。 具体地说，金属栅电极通过合金化来稳定化，其中合金包括选自Re，Ru，Pt，Rh，Ni，Al及其组合的金属和选自W，V，Ti ，Ta及其组合。

公开(公告)号：US20090152642A1

公开(公告)日：2009-06-18

申请号：US12355368

申请日：2009-01-16

申请人： Nestor A. Bojarczuk, JR. ,  Cyril Cabral, JR. ,  Eduard A. Cartier ,  Matthew W. Copel ,  Martin M. Frank ,  Evgeni P. Gousev ,  Supratik Guha ,  Rajarao Jammy ,  Vijay Narayanan ,  Vamsi K. Paruchuri

发明人： Nestor A. Bojarczuk, JR. ,  Cyril Cabral, JR. ,  Eduard A. Cartier ,  Matthew W. Copel ,  Martin M. Frank ,  Evgeni P. Gousev ,  Supratik Guha ,  Rajarao Jammy ,  Vijay Narayanan ,  Vamsi K. Paruchuri

IPC分类号： H01L27/092 ,  H01L21/336 ,  H01L21/02

CPC分类号： H01L29/513 ,  H01L21/28079 ,  H01L21/28088 ,  H01L21/823857 ,  H01L29/495 ,  H01L29/4966 ,  H01L29/517

摘要： The present invention provides a semiconductor structure including a semiconductor substrate having a plurality of source and drain diffusion regions located therein, each pair of source and drain diffusion regions are separated by a device channel. The structure further includes a first gate stack of pFET device located on top of some of the device channels, the first gate stack including a high-k gate dielectric, an insulating interlayer abutting the gate dielectric and a fully silicided metal gate electrode abutting the insulating interlayer, the insulating interlayer includes an insulating metal nitride that stabilizes threshold voltage and flatband voltage of the p-FET device to a targeted value and is one of aluminum oxynitride, boron nitride, boron oxynitride, gallium nitride, gallium oxynitride, indium nitride and indium oxynitride. A second gate stack of an nFET devices is located on top remaining device channels, the second gate stack including a high-k gate dielectric and a fully silicided gate electrode located directly atop the high-k gate dielectric.

摘要翻译： 本发明提供一种半导体结构，其包括具有位于其中的多个源极和漏极扩散区域的半导体衬底，每对源极和漏极扩散区域由器件沟道分离。 该结构还包括位于一些器件通道顶部的pFET器件的第一栅极堆叠，第一栅极堆叠包括高k栅极电介质，邻接栅极电介质的绝缘夹层和邻接绝缘体的完全硅化金属栅电极 中间层，绝缘中间层包括将p-FET器件的阈值电压和扁平带电压稳定到目标值的绝缘金属氮化物，并且是氮氧化铝，氮化硼，氮氧化硼，氮化镓，氮氧化镓，氮化铟和铟中的一种 氮氧化物。 nFET器件的第二栅极堆叠位于顶部剩余器件沟道上，第二栅极堆叠包括高k栅极电介质和直接位于高k栅极电介质顶部的完全硅化栅电极。

公开(公告)号：US07521346B2

公开(公告)日：2009-04-21

申请号：US11875524

申请日：2007-10-19

申请人： Alessandro C. Callegari ,  Martin M. Frank ,  Rajarao Jammy ,  Dianne L. Lacey ,  Fenton R. McFeely ,  Sufi Zafar

发明人： Alessandro C. Callegari ,  Martin M. Frank ,  Rajarao Jammy ,  Dianne L. Lacey ,  Fenton R. McFeely ,  Sufi Zafar

IPC分类号： H01L21/4763

CPC分类号： H01L29/4966 ,  H01L21/28088 ,  H01L29/513 ,  H01L29/517 ,  H01L29/665 ,  H01L29/6659

摘要： A compound metal comprising HfSiN which is a n-type metal having a workfunction of about 4.0 to about 4.5, preferably about 4.3, eV which is thermally stable on a gate stack comprising a high k dielectric and an interfacial layer. Furthermore, after annealing the stack of HfSiN/high k dielectric/interfacial layer at a high temperature (on the order of about 1000° C.), there is a reduction of the interfacial layer, thus the gate stack produces a very small equivalent oxide thickness (12 Å classical), which cannot be achieved using TaSiN.

摘要翻译： 包含HfSiN的复合金属，其是具有约4.0至约4.5，优选约4.3的功函数的n型金属，其在包含高k电介质和界面层的栅极堆叠上是热稳定的。 此外，在高温（约1000℃）左右的HfSiN /高k电介质/界面层的堆叠退火之后，界面层的减少，因此栅叠层产生非常小的等效氧化物 厚度（经典），不能用TaSiN实现。

公开(公告)号：US07452767B2

公开(公告)日：2008-11-18

申请号：US11500254

申请日：2006-08-07

申请人： Nestor A. Bojarczuk, Jr. ,  Cyril Cabral, Jr. ,  Eduard A. Cartier ,  Matthew W. Copel ,  Martin M. Frank ,  Evgeni P. Gousev ,  Supratik Guha ,  Rajarao Jammy ,  Vijay Narayanan ,  Vamsi K. Paruchuri

发明人： Nestor A. Bojarczuk, Jr. ,  Cyril Cabral, Jr. ,  Eduard A. Cartier ,  Matthew W. Copel ,  Martin M. Frank ,  Evgeni P. Gousev ,  Supratik Guha ,  Rajarao Jammy ,  Vijay Narayanan ,  Vamsi K. Paruchuri

IPC分类号： H01L21/8238

CPC分类号： H01L29/513 ,  H01L21/28079 ,  H01L21/28088 ,  H01L21/823857 ,  H01L29/495 ,  H01L29/4966 ,  H01L29/517

摘要： A method of forming a CMOS structure, and the device produced therefrom, having improved threshold voltage and flatband voltage stability. The inventive method includes the steps of providing a semiconductor substrate having an nFET region and a pFET region; forming a dielectric stack atop the semiconductor substrate comprising an insulating interlayer atop a high k dielectric; removing the insulating interlayer from the nFET region without removing the insulating interlayer from the pFET region; and providing at least one gate stack in the pFET region and at least one gate stack in the nFET region. The insulating interlayer can be AlN or AlOxNy. The high k dielectric can be HfO2, hafnium silicate or hafnium silicon oxynitride. The insulating interlayer can be removed from the nFET region by a wet etch including a HCl/H2O2 peroxide solution.

摘要翻译： 一种形成CMOS结构的方法及其制造的器件，具有改进的阈值电压和平带电压稳定性。 本发明的方法包括提供具有nFET区和pFET区的半导体衬底的步骤; 在所述半导体衬底上形成包括在高k电介质顶上的绝缘夹层的电介质叠层; 从nFET区域去除绝缘中间层而不从pFET区域去除绝缘中间层; 以及在pFET区域中提供至少一个栅极堆叠以及在nFET区域中提供至少一个栅极堆叠。 绝缘中间层可以是AlN或AlO x N y Y。 高k电介质可以是HfO 2，硅酸铪或铪硅氮氧化物。 可以通过包含HCl / H 2 O 2 O 2过氧化物溶液的湿蚀刻从nFET区域去除绝缘中间层。

公开(公告)号：US20080182389A1

公开(公告)日：2008-07-31

申请号：US12062972

申请日：2008-04-04

申请人： Eduard A. Cartier ,  Matthew W. Copel ,  Martin M. Frank ,  Evgeni P. Gousev ,  Paul C. Jamison ,  Rajarao Jammy ,  Barry P. Linder ,  Vijay Narayanan

发明人： Eduard A. Cartier ,  Matthew W. Copel ,  Martin M. Frank ,  Evgeni P. Gousev ,  Paul C. Jamison ,  Rajarao Jammy ,  Barry P. Linder ,  Vijay Narayanan

IPC分类号： H01L21/479

CPC分类号： H01L29/513 ,  H01L21/28194 ,  H01L21/28238 ,  H01L21/823807 ,  H01L29/105 ,  H01L29/1083 ,  H01L29/517 ,  H01L29/518 ,  H01L29/6659 ,  H01L29/7833

摘要： A semiconductor structure, particularly a pFET, which includes a dielectric material that has a dielectric constant of greater than that of SiO2 and a Ge or Si content of greater than 50% and at least one other means for threshold/flatband voltage tuning by material stack engineering is provided. The other means contemplated in the present invention include, for example, utilizing an insulating interlayer atop the dielectric for charge fixing and/or by forming an engineered channel region. The present invention also relates to a method of fabricating such a CMOS structure.

摘要翻译： 一种半导体结构，特别是pFET，其包括介电常数大于SiO 2的介电常数和大于50％的Ge或Si含量的至少一种其它装置， 提供材料堆栈工程的阈值/平带电压调谐。 本发明中考虑的其它方法包括例如在用于电荷固定的电介质的顶部和/或通过形成工程化的沟道区域之间使用绝缘夹层。 本发明还涉及一种制造这种CMOS结构的方法。

公开(公告)号：US20080142894A1

公开(公告)日：2008-06-19

申请号：US12040350

申请日：2008-02-29

申请人： Philippe M. Vereecken ,  Veeraraghavan S. Basker ,  Cyril Cabral ,  Emanuel I. Cooper ,  Hariklia Deligianni ,  Martin M. Frank ,  Rajarao Jammy ,  Vamsi Krishna Paruchuri ,  Katherine L. Saenger ,  Xiaoyan Shao

发明人： Philippe M. Vereecken ,  Veeraraghavan S. Basker ,  Cyril Cabral ,  Emanuel I. Cooper ,  Hariklia Deligianni ,  Martin M. Frank ,  Rajarao Jammy ,  Vamsi Krishna Paruchuri ,  Katherine L. Saenger ,  Xiaoyan Shao

IPC分类号： H01L27/088 ,  H01L29/423

CPC分类号： H01L21/2885 ,  C25D3/50 ,  C25D5/02 ,  C25D5/024 ,  C25D5/54 ,  C25D7/123 ,  C25D9/04 ,  C25F3/14 ,  H01L21/28079 ,  H01L21/28114 ,  H01L21/76885 ,  H01L29/513 ,  H01L29/517 ,  H01L29/78648

摘要： A method is provided for electroplating a gate metal or other conducting or semiconducting material directly on a dielectric such as a gate dielectric. The method involves selecting a substrate, dielectric layer, and electrolyte solution or melt, wherein the combination of the substrate, dielectric layer, and electrolyte solution or melt allow an electrochemical current to be passed from the substrate through the dielectric layer into the electrolyte solution or melt. Methods are also provided for electrochemical modification of dielectrics utilizing through-dielectric current flow.

摘要翻译： 提供了一种用于将栅极金属或其它导电或半导体材料直接电镀在诸如栅极电介质的电介质上的方法。 该方法包括选择衬底，电介质层和电解质溶液或熔体，其中衬底，电介质层和电解质溶液或熔体的组合允许电化学电流从衬底通过电介质层进入电解质溶液或 熔化。 还提供了利用电介质电流流动的电介质电化学修饰方法。

公开(公告)号：US20070173008A1

公开(公告)日：2007-07-26

申请号：US11336727

申请日：2006-01-20

申请人： Michael Chudzik ,  Bruce Doris ,  Supratik Guha ,  Rajarao Jammy ,  Vijay Narayanan ,  Vamsi Paruchuri ,  Yun Wang ,  Keith Wong

发明人： Michael Chudzik ,  Bruce Doris ,  Supratik Guha ,  Rajarao Jammy ,  Vijay Narayanan ,  Vamsi Paruchuri ,  Yun Wang ,  Keith Wong

IPC分类号： H01L21/8238

CPC分类号： H01L29/517 ,  H01L21/28088 ,  H01L21/823828 ,  H01L21/823857 ,  H01L29/4966 ,  H01L29/513 ,  H01L29/78 ,  H01L2924/0002 ,  H01L2924/00

摘要： Semiconductor structures, such as, for example, field effect transistors (FETs) and/or metal-oxide-semiconductor capacitor (MOSCAPs), are provided in which the workfunction of a conductive electrode stack is changed by introducing metal impurities into a metal-containing material layer which, together with a conductive electrode, is present in the electrode stack. The choice of metal impurities depends on whether the electrode is to have an n-type workfunction or a p-type workfunction. The present invention also provides a method of fabricating such semiconductor structures. The introduction of metal impurities can be achieved by codeposition of a layer containing both a metal-containing material and workfunction altering metal impurities, forming a stack in which a layer of metal impurities is present between layers of a metal-containing material, or by forming a material layer including the metal impurities above and/or below a metal-containing material and then heating the structure so that the metal impurities are introduced into the metal-containing material.

摘要翻译： 提供半导体结构，例如场效应晶体管（FET）和/或金属氧化物半导体电容器（MOSCAP），其中通过将金属杂质引入到含金属的物质中来改变导电电极堆叠的功函数 材料层与导电电极一起存在于电极堆叠中。 金属杂质的选择取决于电极是否具有n型功函数或p型功函数。 本发明还提供一种制造这种半导体结构的方法。 金属杂质的引入可以通过共沉积含有金属的材料和改变金属杂质的功函数的层来形成，形成其中金属杂质层存在于含金属材料的层之间的叠层，或通过形成 包括在含金属材料上方和/或下面的金属杂质的材料层，然后加热该结构，使得金属杂质被引入到含金属的材料中。

公开(公告)号：US20060289903A1

公开(公告)日：2006-12-28

申请号：US11513101

申请日：2006-08-30

申请人： Wanda Andreoni ,  Alessandro Callegari ,  Eduard Cartier ,  Alessandro Curioni ,  Christopher D'Emic ,  Evgeni Gousev ,  Michael Gribelyuk ,  Paul Jamison ,  Rajarao Jammy ,  Dianne Lacey ,  Fenton McFeely ,  Vijay Narayanan ,  Carlo Pignedoli ,  Joseph Shepard ,  Sufi Zafar

发明人： Wanda Andreoni ,  Alessandro Callegari ,  Eduard Cartier ,  Alessandro Curioni ,  Christopher D'Emic ,  Evgeni Gousev ,  Michael Gribelyuk ,  Paul Jamison ,  Rajarao Jammy ,  Dianne Lacey ,  Fenton McFeely ,  Vijay Narayanan ,  Carlo Pignedoli ,  Joseph Shepard ,  Sufi Zafar

IPC分类号： H01L31/112 ,  H01L29/80

CPC分类号： H01L21/28176 ,  H01L29/4908 ,  H01L29/4966 ,  H01L29/513 ,  H01L29/517 ,  H01L29/6656 ,  H01L29/66575 ,  H01L29/66772 ,  H01L29/7833 ,  H01L29/78684

摘要： The present invention provides a gate stack structure that has high mobilites and low interfacial charges as well as semiconductor devices, i.e., metal oxide semiconductor field effect transistors (MOSFETs) that include the same. In the semiconductor devices, the gate stack structure of the present invention is located between the substrate and an overlaying gate conductor. The present invention also provides a method of fabricating the inventive gate stack structure in which a high temperature annealing process (on the order of about 800° C.) is employed. The high temperature anneal used in the present invention provides a gate stack structure that has an interface state density, as measured by charge pumping, of about 8×1010 charges/cm2 or less, a peak mobility of about 250 cm2/V-s or greater and substantially no mobility degradation at about 6.0×1012 inversion charges/cm2 or greater.

摘要翻译： 本发明提供具有高移动性和低界面电荷的栅堆叠结构，以及包括其的半导体器件，即金属氧化物半导体场效应晶体管（MOSFET）。 在半导体器件中，本发明的栅极堆叠结构位于衬底和覆盖栅极导体之间​​。 本发明还提供一种制造本发明的栅叠层结构的方法，其中采用了高温退火工艺（大约800℃）。 在本发明中使用的高温退火提供了一种栅堆叠结构，其具有通过电荷泵浦测量的约8×10 10电荷/ cm 2的界面态密度或 更少，约250cm 2 / Vs或更高的峰迁移率，并且在约6.0×10 12反转电荷/ cm 2处基本上没有迁移率降解， 或更大。

公开(公告)号：US07091118B1

公开(公告)日：2006-08-15

申请号：US10988532

申请日：2004-11-16

申请人： James Pan ,  John Pellerin ,  Linda R. Black ,  Michael Chudzik ,  Rajarao Jammy

发明人： James Pan ,  John Pellerin ,  Linda R. Black ,  Michael Chudzik ,  Rajarao Jammy

IPC分类号： H01L21/3205 ,  H01L21/338

CPC分类号： H01L29/7833 ,  H01L21/28052 ,  H01L29/66545 ,  H01L29/66583

摘要： A semiconductor device with a replacement metal gate and the process for making the same removes a dummy gate from a semiconductor device. Within the recess left by the dummy gate is a silicon layer on a gate dielectric layer. A replacement metal is deposited on the thin silicon layer and then reacted with the silicon layer to form a metal-rich silicon layer on the gate dielectric layer.

摘要翻译： 具有替换金属栅极的半导体器件及其制造方法从半导体器件中去除虚拟栅极。 在虚拟栅极留下的凹槽内是栅介质层上的硅层。 替代金属沉积在薄硅层上，然后与硅层反应，以在栅极介电层上形成富含金属的硅层。

公开(公告)号：US07030481B2

公开(公告)日：2006-04-18

申请号：US10314589

申请日：2002-12-09

申请人： Michael Patrick Chudzik ,  Robert H. Dennard ,  Rama Divakaruni ,  Bruce Kenneth Furman ,  Rajarao Jammy ,  Chandrasekhar Narayan ,  Sampath Purushothaman ,  Joseph F. Shepard, Jr. ,  Anna Wanda Topol

发明人： Michael Patrick Chudzik ,  Robert H. Dennard ,  Rama Divakaruni ,  Bruce Kenneth Furman ,  Rajarao Jammy ,  Chandrasekhar Narayan ,  Sampath Purushothaman ,  Joseph F. Shepard, Jr. ,  Anna Wanda Topol

IPC分类号： H01L23/053

CPC分类号： H05K1/162 ,  H01L23/147 ,  H01L23/481 ,  H01L23/49827 ,  H01L23/50 ,  H01L2224/16225 ,  H01L2924/01019 ,  H01L2924/01055 ,  H01L2924/01077 ,  H01L2924/01078 ,  H01L2924/15311 ,  H01L2924/157 ,  H01L2924/30105 ,  H05K1/167 ,  H05K3/4602 ,  H05K2201/09809

摘要： A carrier for a semiconductor component is provided having passive components integrated in its substrate. The passive components include decoupling components, such as capacitors and resistors. A set of connections is integrated to provide a close electrical proximity to the supported components.

摘要翻译： 提供了一种用于半导体部件的载体，其具有集成在其基板中的无源部件。 无源组件包括去耦组件，例如电容器和电阻器。 一组连接被集成以提供与受支持的部件的紧密的电气接近。