公开(公告)号：US20170162438A1

公开(公告)日：2017-06-08

申请号：US15432372

申请日：2017-02-14

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES Inc.

Inventor： Su Chen Fan ,  Andre P. Labonte ,  Lars W. Liebmann ,  Sanjay C. Mehta

IPC: H01L21/768 ,  H01L27/11 ,  H01L29/66 ,  H01L23/522 ,  H01L23/528

CPC classification number: H01L29/66553 ,  H01L21/0274 ,  H01L21/31111 ,  H01L21/76802 ,  H01L21/76805 ,  H01L21/7684 ,  H01L21/76877 ,  H01L21/76895 ,  H01L21/76897 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/535 ,  H01L27/1104 ,  H01L29/665 ,  H01L29/66515 ,  H01L29/66545 ,  H01L29/6656 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A gate tie-down structure includes a gate structure including a gate conductor and gate spacers and inner spacers formed on the gate spacers. Trench contacts are formed on sides of the gate structure. An interlevel dielectric (ILD) has a thickness formed over the gate structure. A horizontal connection is formed within the thickness of the ILD over an active area connecting the gate conductor and one of the trench contacts over one of the inner spacers.

公开(公告)号：US09583442B2

公开(公告)日：2017-02-28

申请号：US14753407

申请日：2015-06-29

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Su Chen Fan ,  Sukwon Hong ,  William J. Taylor, Jr.

IPC: H01L21/4763 ,  H01L23/535 ,  H01L21/768 ,  H01L23/532

CPC classification number: H01L23/535 ,  H01L21/76802 ,  H01L21/76829 ,  H01L21/7684 ,  H01L21/76843 ,  H01L21/76877 ,  H01L21/76895 ,  H01L23/528 ,  H01L23/53238 ,  H01L23/53295

Abstract: An interconnect structure includes an insulator stack on an upper surface of a semiconductor substrate. The insulator stack includes a first insulator layer having at least one semiconductor device embedded therein and an etch stop layer interposed between the first insulator layer and a second insulator layer. At least one electrically conductive local contact extends through each of the second insulator layer, etch stop layer and, first insulator layer to contact the at least one semiconductor device. The interconnect structure further includes at least one first layer contact element disposed on the etch stop layer and against the at least one conductive local contact.

Abstract translation: 互连结构包括在半导体衬底的上表面上的绝缘体堆叠。 绝缘体堆叠包括具有嵌入其中的至少一个半导体器件的第一绝缘体层和插入在第一绝缘体层和第二绝缘体层之间的蚀刻停止层。 至少一个导电局部接触件延伸穿过第二绝缘体层，蚀刻停止层和与第一半导体器件接触的第一绝缘体层中的每一个。 所述互连结构还包括设置在所述蚀刻停止层上并抵靠所述至少一个导电性局部接触的至少一个第一层接触元件。

公开(公告)号：US09570573B1

公开(公告)日：2017-02-14

申请号：US14822490

申请日：2015-08-10

Applicant: GLOBALFOUNDRIES, INC.

Inventor： Su Chen Fan ,  Lars W. Liebmann ,  Ruilong Xie

IPC: H01L29/45 ,  H01L21/768 ,  H01L29/66 ,  H01L21/3105

CPC classification number: H01L23/535 ,  H01L21/31053 ,  H01L21/31058 ,  H01L21/76895 ,  H01L21/76897 ,  H01L29/0649 ,  H01L29/4236 ,  H01L29/45 ,  H01L29/7827 ,  H01L2221/1063

Abstract: A method for forming a gate tie-down includes exposing an active area to form trench contact openings and forming trench contacts therein. An etch stop layer is formed on the trench contacts and on spacers of adjacent gate structures. An interlevel dielectric (ILD) is deposited to fill over the etch stop layer. The ILD and the etch stop layer on one side of the gate structure are opened up to provide an exposed etch stop layer portion. The gate structure is recessed to expose a gate conductor. The exposed etch stop layer portion is removed. A conductive material is deposited to provide a self-aligned contact down to the trench contact on the one side of the gate structure, to form a gate contact down to the gate conductor and to form a horizontal connection within the ILD over the active area between the gate conductor and the self-aligned contact.

Abstract translation: 形成栅极结合的方法包括暴露有源区以形成沟槽接触开口并在其中形成沟槽接触。 在沟槽触点和相邻栅极结构的间隔物上形成蚀刻停止层。 沉积层间电介质（ILD）以填满蚀刻停止层。 栅极结构的一侧上的ILD和蚀刻停止层被打开以提供暴露的蚀刻停止层部分。 栅极结构凹陷以露出栅极导体。 去除暴露的蚀刻停止层部分。 沉积导电材料以提供与栅极结构一侧上的沟槽接触的自对准接触，以形成到栅极导体下方的栅极接触，并且在ILD之间的有效区域之间形成水平连接 栅极导体和自对准触点。

公开(公告)号：US10522654B2

公开(公告)日：2019-12-31

申请号：US16120870

申请日：2018-09-04

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES Inc.

Inventor： Su Chen Fan ,  Andre P. Labonte ,  Lars W. Liebmann ,  Sanjay C. Mehta

IPC: H01L29/66 ,  H01L21/768 ,  H01L21/027 ,  H01L23/535 ,  H01L27/11 ,  H01L21/311 ,  H01L23/522 ,  H01L23/528

Abstract: A gate tie-down structure includes a gate structure including a gate conductor and gate spacers and inner spacers formed on the gate spacers. Trench contacts are formed on sides of the gate structure. An interlevel dielectric (ILD) has a thickness formed over the gate structure. A horizontal connection is formed within the thickness of the ILD over an active area connecting the gate conductor and one of the trench contacts over one of the inner spacers.

公开(公告)号：US10312154B2

公开(公告)日：2019-06-04

申请号：US15705888

申请日：2017-09-15

Applicant: GLOBALFOUNDRIES INC.

Inventor： Ruilong Xie ,  Steven Bentley ,  Puneet Harischandra Suvarna ,  Chanro Park ,  Min Gyu Sung ,  Lars Liebmann ,  Su Chen Fan ,  Brent Anderson

IPC: H01L21/8238 ,  H01L29/66 ,  H01L29/06 ,  H01L29/78 ,  H01L21/84 ,  H01L21/8234

Abstract: A vertical FinFET includes a semiconductor fin formed over a semiconductor substrate. A self-aligned first source/drain contact is electrically separated from a second source/drain contact by a spacer layer that is formed over an endwall of the fin. The spacer layer, which comprises a dielectric material, allows the self-aligned first source/drain contact to be located in close proximity to an endwall of the fin and the associated second source/drain contact without risk of an electrical short between the adjacent contacts.

公开(公告)号：US20180151433A1

公开(公告)日：2018-05-31

申请号：US15880059

申请日：2018-01-25

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES Inc.

Inventor： Su Chen Fan ,  Andre P. Labonte ,  Lars W. Liebmann ,  Sanjay C. Mehta

IPC: H01L21/768 ,  H01L29/66 ,  H01L21/027 ,  H01L27/11 ,  H01L23/535 ,  H01L23/528 ,  H01L23/522 ,  H01L21/311

CPC classification number: H01L29/66553 ,  H01L21/0274 ,  H01L21/31111 ,  H01L21/76802 ,  H01L21/76805 ,  H01L21/7684 ,  H01L21/76877 ,  H01L21/76895 ,  H01L21/76897 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/535 ,  H01L27/1104 ,  H01L29/665 ,  H01L29/66515 ,  H01L29/66545 ,  H01L29/6656 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.

公开(公告)号：US09929049B2

公开(公告)日：2018-03-27

申请号：US15699322

申请日：2017-09-08

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES Inc.

Inventor： Su Chen Fan ,  Andre P. Labonte ,  Lars W. Liebmann ,  Sanjay C. Mehta

IPC: H01L21/768 ,  H01L29/66 ,  H01L23/522 ,  H01L23/528 ,  H01L21/311 ,  H01L27/11 ,  H01L23/535 ,  H01L21/027

CPC classification number: H01L29/66553 ,  H01L21/0274 ,  H01L21/31111 ,  H01L21/76802 ,  H01L21/76805 ,  H01L21/7684 ,  H01L21/76877 ,  H01L21/76895 ,  H01L21/76897 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/535 ,  H01L27/1104 ,  H01L29/665 ,  H01L29/66515 ,  H01L29/66545 ,  H01L29/6656 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.

公开(公告)号：US20170372959A1

公开(公告)日：2017-12-28

申请号：US15699322

申请日：2017-09-08

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES Inc.

Inventor： Su Chen Fan ,  Andre P. Labonte ,  Lars W. Liebmann ,  Sanjay C. Mehta

IPC: H01L21/768 ,  H01L21/027 ,  H01L21/311 ,  H01L23/535 ,  H01L23/528 ,  H01L23/522 ,  H01L29/66 ,  H01L27/11

CPC classification number: H01L29/66553 ,  H01L21/0274 ,  H01L21/31111 ,  H01L21/76802 ,  H01L21/76805 ,  H01L21/7684 ,  H01L21/76877 ,  H01L21/76895 ,  H01L21/76897 ,  H01L23/5226 ,  H01L23/528 ,  H01L23/535 ,  H01L27/1104 ,  H01L29/665 ,  H01L29/66515 ,  H01L29/66545 ,  H01L29/6656 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.

公开(公告)号：US09786607B2

公开(公告)日：2017-10-10

申请号：US15277732

申请日：2016-09-27

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Su Chen Fan ,  Sukwon Hong ,  William J. Taylor, Jr.

IPC: H01L23/48 ,  H01L23/535 ,  H01L21/768 ,  H01L23/532 ,  H01L23/528

CPC classification number: H01L23/535 ,  H01L21/76802 ,  H01L21/76829 ,  H01L21/7684 ,  H01L21/76843 ,  H01L21/76877 ,  H01L21/76895 ,  H01L23/528 ,  H01L23/53238 ,  H01L23/53295

Abstract: An interconnect structure includes an insulator stack on an upper surface of a semiconductor substrate. The insulator stack includes a first insulator layer having at least one semiconductor device embedded therein and an etch stop layer interposed between the first insulator layer and a second insulator layer. At least one electrically conductive local contact extends through each of the second insulator layer, etch stop layer and, first insulator layer to contact the at least one semiconductor device. The interconnect structure further includes at least one first layer contact element disposed on the etch stop layer and against the at least one conductive local contact.

公开(公告)号：US20170140984A1

公开(公告)日：2017-05-18

申请号：US15420467

申请日：2017-01-31

Applicant: International Business Machines Corporation ,  GlobalFoundries, Inc.

Inventor： Su Chen Fan ,  Sukwon Hong ,  William J. Taylor, JR.

IPC: H01L21/768 ,  H01L23/532 ,  H01L23/528

CPC classification number: H01L23/535 ,  H01L21/76802 ,  H01L21/76829 ,  H01L21/7684 ,  H01L21/76843 ,  H01L21/76877 ,  H01L21/76895 ,  H01L23/528 ,  H01L23/53238 ,  H01L23/53295

Abstract: An interconnect structure includes an insulator stack on an upper surface of a semiconductor substrate. The insulator stack includes a first insulator layer having at least one semiconductor device embedded therein and an etch stop layer interposed between the first insulator layer and a second insulator layer. At least one electrically conductive local contact extends through each of the second insulator layer, etch stop layer and, first insulator layer to contact the at least one semiconductor device. The interconnect structure further includes at least one first layer contact element disposed on the etch stop layer and against the at least one conductive local contact.