公开(公告)号：US09607903B2

公开(公告)日：2017-03-28

申请号：US15252586

申请日：2016-08-31

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L29/78 ,  H01L21/8238 ,  H01L29/66

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

公开(公告)号：US09129987B2

公开(公告)日：2015-09-08

申请号：US14163687

申请日：2014-01-24

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Jing Wan ,  Jin Ping Liu ,  Guillaume Bouche ,  Andy Wei ,  Lakshmanan H. Vanamurthy ,  Cuiqin Xu ,  Sridhar Kuchibhatla ,  Rama Kambhampati ,  Xiuyu Cai

IPC: H01L29/66 ,  H01L21/3105 ,  H01L21/311 ,  H01L21/28

CPC classification number: H01L29/66545 ,  H01L21/28079 ,  H01L21/28088 ,  H01L21/31055 ,  H01L21/31111 ,  H01L29/165 ,  H01L29/665 ,  H01L29/6653 ,  H01L29/66636 ,  H01L29/7848

Abstract: A method includes providing a gate structure having a gate, a first spacer along at least one side of the gate and an interlayer dielectric on at least one of the gate and the first spacer. The interlayer dielectric is removed to reveal the first spacer. The first spacer is removed and a second spacer is deposited on at least one side of the gate. The second spacer is formed of material having a lower dielectric constant than the first spacer.

Abstract translation: 一种方法包括提供具有栅极的栅极结构，沿栅极的至少一侧的第一间隔物，以及至少一个栅极和第一间隔物上的层间电介质。 去除层间电介质以露出第一间隔物。 去除第一间隔物并且在栅极的至少一侧上沉积第二间隔物。 第二间隔物由具有比第一间隔物低的介电常数的材料形成。

公开(公告)号：US20170040453A1

公开(公告)日：2017-02-09

申请号：US14817504

申请日：2015-08-04

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L29/78 ,  H01L27/092 ,  H01L29/66 ,  H01L21/8238

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

Abstract translation: 一种用于形成场效应晶体管的方法包括在第一鳍上形成第一虚拟栅极堆叠，在第二鳍片上形成第二虚拟栅极叠层，在第一伪栅极叠层上沉积第一层间隔物材料， 虚拟栅极堆叠和第二鳍片，在第一伪栅极堆叠和第一鳍片上构图第一掩模层，蚀刻以去除第一层间隔物材料的部分并形成邻近第二伪栅极叠层的间隔区， 第一掩模层，在所述第二鳍上外延生长硅材料，在所述第一隔离层材料层上沉积氧化物层，所述第一外延材料和所述第二伪栅极堆叠，以及在所述层上沉积第二隔离层材料层 的氧化物质。

公开(公告)号：US09548388B1

公开(公告)日：2017-01-17

申请号：US14817504

申请日：2015-08-04

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L29/78 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/66

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

Abstract translation: 一种用于形成场效应晶体管的方法包括在第一鳍上形成第一虚拟栅极堆叠，在第二鳍片上形成第二虚拟栅极叠层，在第一伪栅极叠层上沉积第一层间隔物材料， 虚拟栅极堆叠和第二鳍片，在第一伪栅极堆叠和第一鳍片上构图第一掩模层，蚀刻以去除第一层间隔物材料的部分并形成邻近第二伪栅极叠层的间隔区， 第一掩模层，在所述第二鳍上外延生长硅材料，在所述第一隔离层材料层上沉积氧化物层，所述第一外延材料和所述第二伪栅极堆叠，以及在所述层上沉积第二隔离层材料层 的氧化物质。

公开(公告)号：US20170040325A1

公开(公告)日：2017-02-09

申请号：US15168725

申请日：2016-05-31

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L27/092 ,  H01L29/66 ,  H01L29/161 ,  H01L21/8238 ,  H01L29/10 ,  H01L29/16

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

Abstract translation: 一种用于形成场效应晶体管的方法包括在第一鳍上形成第一虚拟栅极堆叠，在第二鳍片上形成第二虚拟栅极叠层，在第一伪栅极叠层上沉积第一层间隔物材料， 虚拟栅极堆叠和第二鳍片，在第一伪栅极堆叠和第一鳍片上构图第一掩模层，蚀刻以去除第一层间隔物材料的部分并形成邻近第二伪栅极叠层的间隔区， 第一掩模层，在所述第二鳍上外延生长硅材料，在所述第一隔离层材料层上沉积氧化物层，所述第一外延材料和所述第二伪栅极堆叠，以及在所述层上沉积第二隔离层材料层 的氧化物质。

公开(公告)号：US09634010B2

公开(公告)日：2017-04-25

申请号：US15168725

申请日：2016-05-31

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L29/78 ,  H01L27/092 ,  H01L29/10 ,  H01L29/16 ,  H01L29/161 ,  H01L21/8238 ,  H01L29/66

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

公开(公告)号：US20170040224A1

公开(公告)日：2017-02-09

申请号：US15252586

申请日：2016-08-31

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L21/8238 ,  H01L29/66

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

Abstract translation: 一种用于形成场效应晶体管的方法包括在第一鳍上形成第一虚拟栅极堆叠，在第二鳍片上形成第二虚拟栅极叠层，在第一伪栅极叠层上沉积第一层间隔物材料， 虚拟栅极堆叠和第二鳍片，在第一伪栅极堆叠和第一鳍片上构图第一掩模层，蚀刻以去除第一层间隔物材料的部分并形成邻近第二伪栅极叠层的间隔区， 第一掩模层，在所述第二鳍上外延生长硅材料，在所述第一隔离层材料层上沉积氧化物层，所述第一外延材料和所述第二伪栅极堆叠，以及在所述层上沉积第二隔离层材料层 的氧化物质。

公开(公告)号：US09472670B1

公开(公告)日：2016-10-18

申请号：US15085376

申请日：2016-03-30

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Rama Kambhampati ,  Junli Wang ,  Ruilong Xie ,  Tenko Yamashita

IPC: H01L29/78 ,  H01L21/84 ,  H01L21/8238 ,  H01L29/66

CPC classification number: H01L27/0924 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/823864 ,  H01L29/1054 ,  H01L29/16 ,  H01L29/161 ,  H01L29/66545 ,  H01L29/7848

Abstract: A method for forming field effect transistors comprises forming a first dummy gate stack over a first fin, forming a second dummy gate stack over a second fin, depositing a first layer of spacer material on the first dummy gate stack, the first fin, the second dummy gate stack, and the second fin, patterning a first masking layer on the first dummy gate stack and the first fin, etching to remove portions of the first layer of spacer material and form a spacer adjacent to the second dummy gate stack, removing the first masking layer, epitaxially growing a silicon material on the second fin, depositing a layer of oxide material on the first layer of spacer material, the first epitaxial material and the second dummy gate stack, and depositing a second layer of spacer material on the layer of oxide material.

Abstract translation: 一种用于形成场效应晶体管的方法包括在第一鳍上形成第一虚拟栅极堆叠，在第二鳍片上形成第二虚拟栅极叠层，在第一伪栅极叠层上沉积第一层间隔物材料， 虚拟栅极堆叠和第二鳍片，在第一伪栅极堆叠和第一鳍片上构图第一掩模层，蚀刻以去除第一层间隔物材料的部分并形成邻近第二伪栅极叠层的间隔区， 第一掩模层，在所述第二鳍上外延生长硅材料，在所述第一隔离层材料层上沉积氧化物层，所述第一外延材料和所述第二伪栅极堆叠，以及在所述层上沉积第二隔离层材料层 的氧化物质。

公开(公告)号：US09252245B1

公开(公告)日：2016-02-02

申请号：US14478494

申请日：2014-09-05

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Murat Akarvardar ,  Rama Kambhampati

IPC: H01L29/66 ,  H01L27/088 ,  H01L21/3065 ,  H01L21/306 ,  H01L29/45 ,  H01L21/3105 ,  H01L21/283

CPC classification number: H01L29/6681 ,  H01L21/283 ,  H01L21/30604 ,  H01L21/3065 ,  H01L21/31053 ,  H01L29/45 ,  H01L29/66545 ,  H01L29/66795

Abstract: A methodology for spacer-last replacement metal gate (RMG) flow that exhibits reduced variability, and the resulting device are disclosed. Embodiments may include forming a dummy gate stack comprising a dummy nitride portion on a dummy oxide portion on a substrate, forming source/drain regions in the substrate at opposite sides of the dummy gate stack, depositing an insulating material over the source/drain regions, coplanar with the dummy gate stack, and replacing the dummy gate stack with a metal gate stack and spacers.

Abstract translation: 公开了一种表现出减小的可变性的间隔最后置换金属栅（RMG）流的方法，并且所得到的装置被公开。 实施例可以包括在衬底上的虚拟氧化物部分上形成包括虚拟氮化物部分的虚拟栅极堆叠，在虚设栅极叠层的相对侧的基板中形成源极/漏极区域，在源极/漏极区域上沉积绝缘材料， 与虚拟栅极堆叠共面，并用金属栅极堆叠和间隔物替代伪栅极堆叠。