公开(公告)号：US08492290B2

公开(公告)日：2013-07-23

申请号：US13164891

申请日：2011-06-21

申请人： Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, Jr. ,  Shahab Siddiqui ,  Jinping Liu

发明人： Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, Jr. ,  Shahab Siddiqui ,  Jinping Liu

IPC分类号： H01L21/31

CPC分类号： H01L21/02052 ,  H01L21/0214 ,  H01L21/02164 ,  H01L21/02238 ,  H01L21/02255 ,  H01L21/02301 ,  H01L21/02332 ,  H01L21/0234 ,  H01L21/28211 ,  H01L21/28238

摘要： A method of fabricating a silicon-containing oxide layer that includes providing a chemical oxide layer on a surface of a semiconductor substrate, removing the chemical oxide layer in an oxygen-free environment at a temperature of 1000° C. or greater to provide a bare surface of the semiconductor substrate, and introducing an oxygen-containing gas at a flow rate to the bare surface of the semiconductor substrate for a first time period at the temperature of 1000° C. The temperature is then reduced to room temperature during a second time period while maintaining the flow rate of the oxygen containing gas to provide a silicon-containing oxide layer having a thickness ranging from 0.5 Å to 10 Å.

摘要翻译： 一种制造含硅氧化物层的方法，包括在半导体衬底的表面上提供化学氧化物层，在1000℃或更高的温度下在无氧环境中除去化学氧化物层，以提供裸露 在半导体衬底的表面上，以1000℃的温度将半导体衬底的裸露表面的含氧气体首次引入半导体衬底的裸露表面。然后在第二时间内将温度降至室温 同时保持含氧气体的流速，从而提供厚度范围从0.5到10的含硅氧化物层。

公开(公告)号：US08809152B2

公开(公告)日：2014-08-19

申请号：US13300146

申请日：2011-11-18

申请人： MaryJane Brodsky ,  Murshed M. Chowdhury ,  Michael P. Chudzik ,  Min Dai ,  Siddarth A. Krishnan ,  Shreesh Narasimha ,  Shahab Siddiqui

发明人： MaryJane Brodsky ,  Murshed M. Chowdhury ,  Michael P. Chudzik ,  Min Dai ,  Siddarth A. Krishnan ,  Shreesh Narasimha ,  Shahab Siddiqui

IPC分类号： H01L21/336

CPC分类号： H01L29/518 ,  H01L21/28255 ,  H01L27/0922 ,  H01L29/51 ,  H01L29/513 ,  H01L29/66575 ,  H01L29/78

摘要： A semiconductor device including a germanium containing substrate including a gate structure on a channel region of the semiconductor substrate. The gate structure may include a silicon oxide layer that is in direct contact with an upper surface of the germanium containing substrate, at least one high-k gate dielectric layer in direct contact with the silicon oxide layer, and at least one gate conductor in direct contact with the high-k gate dielectric layer. The interface between the silicon oxide layer and the upper surface of the germanium containing substrate is substantially free of germanium oxide. A source region and a drain region may be present on opposing sides of the channel region.

摘要翻译： 一种半导体器件，包括在所述半导体衬底的沟道区上包括栅极结构的含锗衬底。 栅极结构可以包括与含锗衬底的上表面直接接触的氧化硅层，与氧化硅层直接接触的至少一个高k栅介质层和直接与锗氧化物层直接接触的至少一个栅极导体 与高k栅介质层接触。 氧化硅层和含锗衬底的上表面之间的界面基本上不含氧化锗。 源极区域和漏极区域可以存在于沟道区域的相对侧上。

公开(公告)号：US20130330843A1

公开(公告)日：2013-12-12

申请号：US13490740

申请日：2012-06-07

申请人： Michael P. Chudzik ,  Min Dai ,  Jinping Liu ,  Paul A. Ronsheim ,  Joseph F. Shepard, JR. ,  Shahab Siddiqui

发明人： Michael P. Chudzik ,  Min Dai ,  Jinping Liu ,  Paul A. Ronsheim ,  Joseph F. Shepard, JR. ,  Shahab Siddiqui

IPC分类号： H01L21/66 ,  G06F17/50

CPC分类号： H01L29/513 ,  H01L21/28185 ,  H01L21/28202 ,  H01L22/12 ,  H01L22/26 ,  H01L29/518 ,  H01L2924/0002 ,  H01L2924/00

摘要： A method of forming a semiconductor device is disclosed. The method includes: forming a dielectric region on a substrate; annealing the dielectric region in an environment including ammonia (NH3); monitoring a nitrogen peak of at least one of the substrate and the dielectric region during the annealing; and adjusting a parameter of the environment based on the monitoring of the nitrogen peak.

摘要翻译： 公开了一种形成半导体器件的方法。 该方法包括：在基板上形成电介质区域; 在包括氨（NH 3）在内的环境中退火电介质区域; 在退火期间监测所述衬底和所述电介质区域中的至少一个的氮峰; 并根据氮峰的监测来调整环境参数。

公开(公告)号：US20120329230A1

公开(公告)日：2012-12-27

申请号：US13164891

申请日：2011-06-21

申请人： Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, JR. ,  Shahab Siddiqui ,  Jinping Liu

发明人： Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, JR. ,  Shahab Siddiqui ,  Jinping Liu

IPC分类号： H01L21/336 ,  H01L21/31

CPC分类号： H01L21/02052 ,  H01L21/0214 ,  H01L21/02164 ,  H01L21/02238 ,  H01L21/02255 ,  H01L21/02301 ,  H01L21/02332 ,  H01L21/0234 ,  H01L21/28211 ,  H01L21/28238

摘要： A method of fabricating a silicon-containing oxide layer that includes providing a chemical oxide layer on a surface of a semiconductor substrate, removing the chemical oxide layer in an oxygen-free environment at a temperature of 1000° C. or greater to provide a bare surface of the semiconductor substrate, and introducing an oxygen-containing gas at a flow rate to the bare surface of the semiconductor substrate for a first time period at the temperature of 1000° C. The temperature is then reduced to room temperature during a second time period while maintaining the flow rate of the oxygen containing gas to provide a silicon-containing oxide layer having a thickness ranging from 0.5 Å to 10 Å.

摘要翻译： 一种制造含硅氧化物层的方法，包括在半导体衬底的表面上提供化学氧化物层，在1000℃或更高的温度下在无氧环境中除去化学氧化物层，以提供裸露 在半导体衬底的表面上，以1000℃的温度将半导体衬底的裸露表面的含氧气体首次引入半导体衬底的裸露表面。然后在第二时间内将温度降至室温 同时保持含氧气体的流速，从而提供厚度范围从0.5到10的含硅氧化物层。

公开(公告)号：US20140001570A1

公开(公告)日：2014-01-02

申请号：US13537101

申请日：2012-06-29

申请人： MaryJane Brodsky ,  Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, JR. ,  Shahab Siddiqui ,  Yanfeng Wang ,  Jinping Liu

发明人： MaryJane Brodsky ,  Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, JR. ,  Shahab Siddiqui ,  Yanfeng Wang ,  Jinping Liu

IPC分类号： H01L27/088 ,  H01L21/31

CPC分类号： H01L21/02321 ,  H01L21/28194 ,  H01L21/3115 ,  H01L21/823462 ,  H01L29/513 ,  H01L29/517

摘要： A composite high dielectric constant (high-k) gate dielectric includes a stack of a doped high-k gate dielectric and an undoped high-k gate dielectric. The doped high-k gate dielectric can be formed by providing a stack of a first high-k dielectric material layer and a dopant metal layer and annealing the stack to induce the diffusion of the dopant metal into the first high-k dielectric material layer. The undoped high-k gate dielectric is formed by subsequently depositing a second high-k dielectric material layer. The composite high-k gate dielectric can provide an increased gate-leakage oxide thickness without increasing inversion oxide thickness.

摘要翻译： 复合高介电常数（high-k）栅极电介质包括掺杂的高k栅极电介质和未掺杂的高k栅极电介质的堆叠。 可以通过提供第一高k电介质材料层和掺杂剂金属层的堆叠来形成掺杂的高k栅极电介质，并且对叠层进行退火以引起掺杂剂金属扩散到第一高k电介质材料层中。 通过随后沉积第二高k电介质材料层形成未掺杂的高k栅极电介质。 复合高k栅极电介质可以提供增加的栅极 - 漏极氧化物厚度，而不增加反转氧化物厚度。

公开(公告)号：US20130277765A1

公开(公告)日：2013-10-24

申请号：US13453131

申请日：2012-04-23

申请人： Michael P. Chudzik ,  Min Dai ,  Jinping Liu ,  Joseph F. Shepard, JR. ,  Keith Kwong Hon Wong

发明人： Michael P. Chudzik ,  Min Dai ,  Jinping Liu ,  Joseph F. Shepard, JR. ,  Keith Kwong Hon Wong

IPC分类号： H01L29/772 ,  H01L21/283

CPC分类号： H01L29/4966 ,  H01L21/28202 ,  H01L29/47 ,  H01L29/51 ,  H01L29/513 ,  H01L29/517 ,  H01L29/518

摘要： A semiconductor device is disclosed. The semiconductor device includes a substrate; and a gate structure disposed directly on the substrate, the gate structure including: a graded region with a varied material concentration profile; and a metal layer disposed on the graded region.

摘要翻译： 公开了一种半导体器件。 半导体器件包括衬底; 以及栅极结构，其直接设置在所述基板上，所述栅极结构包括：具有不同材料浓度分布的渐变区域; 以及设置在分级区域上的金属层。

公开(公告)号：US20130126986A1

公开(公告)日：2013-05-23

申请号：US13300146

申请日：2011-11-18

申请人： MaryJane Brodsky ,  Murshed M. Chowdhury ,  Michael P. Chudzik ,  Min Dai ,  Siddarth A. Krishnan ,  Shreesh Narasimha ,  Shahab Siddiqui

发明人： MaryJane Brodsky ,  Murshed M. Chowdhury ,  Michael P. Chudzik ,  Min Dai ,  Siddarth A. Krishnan ,  Shreesh Narasimha ,  Shahab Siddiqui

IPC分类号： H01L29/772 ,  H01L21/336

CPC分类号： H01L29/518 ,  H01L21/28255 ,  H01L27/0922 ,  H01L29/51 ,  H01L29/513 ,  H01L29/66575 ,  H01L29/78

摘要： A semiconductor device including a germanium containing substrate including a gate structure on a channel region of the semiconductor substrate. The gate structure may include a silicon oxide layer that is in direct contact with an upper surface of the germanium containing substrate, at least one high-k gate dielectric layer in direct contact with the silicon oxide layer, and at least one gate conductor in direct contact with the high-k gate dielectric layer. The interface between the silicon oxide layer and the upper surface of the germanium containing substrate is substantially free of germanium oxide. A source region and a drain region may be present on opposing sides of the channel region.

摘要翻译： 一种半导体器件，包括在所述半导体衬底的沟道区上包括栅极结构的含锗衬底。 栅极结构可以包括与含锗衬底的上表面直接接触的氧化硅层，与氧化硅层直接接触的至少一个高k栅介质层和直接与锗氧化物层直接接触的至少一个栅极导体 与高k栅介质层接触。 氧化硅层和含锗衬底的上表面之间的界面基本上不含氧化锗。 源极区域和漏极区域可以存在于沟道区域的相对侧上。

公开(公告)号：US09029959B2

公开(公告)日：2015-05-12

申请号：US13537101

申请日：2012-06-29

申请人： MaryJane Brodsky ,  Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, Jr. ,  Shahab Siddiqui ,  Yanfeng Wang ,  Jinping Liu

发明人： MaryJane Brodsky ,  Michael P. Chudzik ,  Min Dai ,  Joseph F. Shepard, Jr. ,  Shahab Siddiqui ,  Yanfeng Wang ,  Jinping Liu

IPC分类号： H01L29/49 ,  H01L21/02 ,  H01L21/28 ,  H01L21/3115 ,  H01L21/8234 ,  H01L29/51

CPC分类号： H01L21/02321 ,  H01L21/28194 ,  H01L21/3115 ,  H01L21/823462 ,  H01L29/513 ,  H01L29/517

摘要： A composite high dielectric constant (high-k) gate dielectric includes a stack of a doped high-k gate dielectric and an undoped high-k gate dielectric. The doped high-k gate dielectric can be formed by providing a stack of a first high-k dielectric material layer and a dopant metal layer and annealing the stack to induce the diffusion of the dopant metal into the first high-k dielectric material layer. The undoped high-k gate dielectric is formed by subsequently depositing a second high-k dielectric material layer. The composite high-k gate dielectric can provide an increased gate-leakage oxide thickness without increasing inversion oxide thickness.

摘要翻译： 复合高介电常数（high-k）栅极电介质包括掺杂的高k栅极电介质和未掺杂的高k栅极电介质的堆叠。 可以通过提供第一高k电介质材料层和掺杂剂金属层的堆叠来形成掺杂的高k栅极电介质，并且对叠层进行退火以引起掺杂剂金属扩散到第一高k电介质材料层中。 通过随后沉积第二高k电介质材料层形成未掺杂的高k栅极电介质。 复合高k栅极电介质可以提供增加的栅极 - 漏极氧化物厚度，而不增加反转氧化物厚度。

公开(公告)号：US09099461B2

公开(公告)日：2015-08-04

申请号：US13490740

申请日：2012-06-07

申请人： Michael P. Chudzik ,  Min Dai ,  Jinping Liu ,  Paul A. Ronsheim ,  Joseph F. Shepard, Jr. ,  Shahab Siddiqui

发明人： Michael P. Chudzik ,  Min Dai ,  Jinping Liu ,  Paul A. Ronsheim ,  Joseph F. Shepard, Jr. ,  Shahab Siddiqui

IPC分类号： H01L21/66 ,  H01L29/51 ,  H01L21/28

CPC分类号： H01L29/513 ,  H01L21/28185 ,  H01L21/28202 ,  H01L22/12 ,  H01L22/26 ,  H01L29/518 ,  H01L2924/0002 ,  H01L2924/00

摘要： A method of forming a semiconductor device is disclosed. The method includes: forming a dielectric region on a substrate; annealing the dielectric region in an environment including ammonia (NH3); monitoring a nitrogen peak of at least one of the substrate and the dielectric region during the annealing; and adjusting a parameter of the environment based on the monitoring of the nitrogen peak.

摘要翻译： 公开了一种形成半导体器件的方法。 该方法包括：在基板上形成电介质区域; 在包括氨（NH 3）在内的环境中退火电介质区域; 在退火期间监测所述衬底和所述电介质区域中的至少一个的氮峰; 并根据氮峰的监测来调整环境参数。

公开(公告)号：US08735244B2

公开(公告)日：2014-05-27

申请号：US13098840

申请日：2011-05-02

申请人： Michael P. Chudzik ,  Min Dai

发明人： Michael P. Chudzik ,  Min Dai

IPC分类号： H01L21/31

CPC分类号： H01L21/3105 ,  H01L21/02164 ,  H01L21/02181 ,  H01L21/0228 ,  H01L21/02304 ,  H01L21/02312 ,  H01L21/28194

摘要： A method of forming a dielectric stack devoid of an interfacial layer includes subjecting an exposed interfacial layer provided on a semiconductor material to a low pressure thermal anneal process for a predetermined time period at a temperature of about 900° C. to about 1000° C. with an inert gas purge. A semiconductor structure is also disclosed, with a dielectric stack devoid of an interfacial layer.

摘要翻译： 形成没有界面层的电介质堆叠的方法包括在约900℃至约1000℃的温度下将设置在半导体材料上的暴露的界面层进行低压热退火处理预定时间段。 用惰性气体吹扫。 还公开了一种没有界面层的电介质叠层的半导体结构。