公开(公告)号：US20180108732A1

公开(公告)日：2018-04-19

申请号：US15292808

申请日：2016-10-13

Applicant: GLOBALFOUNDRIES INC.

Inventor： Jiehui Shu ,  Baofu Zhu ,  Haifeng Sheng ,  Jinping Liu ,  Shesh Mani Pandey ,  Jagar Singh

IPC: H01L29/06 ,  H01L29/78 ,  H01L21/306 ,  H01L29/66

CPC classification number: H01L29/0661 ,  H01L21/3083 ,  H01L29/1054 ,  H01L29/66795 ,  H01L29/7849 ,  H01L29/7851

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to notched fin structures and methods of manufacture. The structure includes: a fin structure composed of a substrate material and a stack of multiple epitaxially grown materials on the substrate material; a notch formed in a first epitaxially grown material of the stack of multiple epitaxially grown materials of the fin structure; an insulator material within the notch of the fin structure; and an insulator layer surrounding the fin structure and above a surface of the notch.

公开(公告)号：US09773680B1

公开(公告)日：2017-09-26

申请号：US15377503

申请日：2016-12-13

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Hui Zang ,  Jinping Liu

IPC: H01L21/311 ,  H01L21/3065 ,  H01L29/66 ,  H01L21/02 ,  H01L21/308 ,  H01L27/11

CPC classification number: H01L21/3065 ,  H01L21/02532 ,  H01L21/02592 ,  H01L21/0337 ,  H01L21/3081 ,  H01L21/3085 ,  H01L21/823431 ,  H01L27/1104 ,  H01L29/66553

Abstract: Devices and methods of fabricating scaled SRAM with flexible active pitch are provided. One method includes, for instance: obtaining an intermediate semiconductor device having a first portion and a second portion, including a plurality of layers and a patterned mandrel; forming a first set of spacers surrounding the patterned mandrel; etching the dielectric layer; depositing a photoresist layer; opening the photoresist layer over the first portion and not the second portion, removing the patterned mandrel in the open areas; etching the dielectric layer in the open areas; removing the photoresist layer, the remaining patterned mandrels, and the first set of spacers in the first and second portion, etching the silicon layer and MTO layer to form a pattern; forming a second set of spacers around the pattern; and etching a set of fins into the substrate and oxide layer.

公开(公告)号：US20170141214A1

公开(公告)日：2017-05-18

申请号：US15343821

申请日：2016-11-04

Applicant: GLOBALFOUNDRIES INC.

Inventor： Hui Zang ,  Min-Hwa Chi ,  Jinping Liu

IPC: H01L29/66 ,  H01L29/78 ,  H01L21/02 ,  H01L29/08 ,  H01L21/306

CPC classification number: H01L29/66795 ,  H01L21/02532 ,  H01L21/0262 ,  H01L21/30604 ,  H01L29/0847 ,  H01L29/785

Abstract: At least one method, apparatus and system disclosed herein fin field effect transistor (finFET) comprising a tall fin having a plurality of epitaxial regions. A first fin of a transistor is formed. The first fin comprising a first portion comprising silicon, a second portion comprising silicon germanium and a third portion comprising silicon. A gate structure above the third portion is formed. An etching process is performed for removing the silicon germanium of the second portion that is not below the gate structure. A first epitaxy region is formed above the first portion. A second epitaxy region is formed vertically aligned with the first epitaxy region and above the second region.

公开(公告)号：US09627274B1

公开(公告)日：2017-04-18

申请号：US15214670

申请日：2016-07-20

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Haifeng Sheng ,  Xintuo Dai ,  Jinping Liu ,  Huang Liu

IPC: H01L21/8238 ,  H01L21/02 ,  H01L21/311 ,  H01L29/66 ,  H01L21/8234 ,  H01L29/786 ,  H01L21/84 ,  H01L29/78

CPC classification number: H01L21/823871 ,  H01L21/823425 ,  H01L21/823431 ,  H01L21/823814 ,  H01L21/823821 ,  H01L21/845 ,  H01L29/665 ,  H01L29/66795 ,  H01L29/785 ,  H01L29/7856 ,  H01L29/786

Abstract: One illustrative method disclosed herein includes, among other things, forming a first sacrificial layer comprising amorphous silicon or polysilicon material around a fin in a lateral space between a plurality of laterally spaced apart gate structures that are positioned around the fin, performing a first selective etching process to remove a first sacrificial layer selectively relative to surrounding material so as to expose the fin in the lateral space, forming an epi material on the exposed portion of the fin, and forming a second layer of a sacrificial material above the epi material. The method also includes selectively removing the second layer of sacrificial material relative to at least the first layer of material to thereby define a source/drain contact opening that exposes the epi material and forming a self-aligned trench conductive source/drain contact structure that is conductively coupled to the epi material.

公开(公告)号：US09620425B1

公开(公告)日：2017-04-11

申请号：US15156822

申请日：2016-05-17

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Hui Zang ,  Min-hwa Chi ,  Jinping Liu

IPC: H01L21/8234 ,  H01L21/84 ,  H01L29/423 ,  H01L29/49

CPC classification number: H01L27/0886 ,  H01L21/823431

Abstract: A method of adjusting work-function metal thickness includes providing a semiconductor structure having a substrate, the substrate including a first array of fins formed thereon. First spacers are formed having a first spacer thickness on sidewalls of fins of the first array. The thickness of the first spacers is adjusted to provide a second spacer thickness different from the first spacer thickness. First supports are formed between and adjacent the first spacers. The first spacers are removed to form first WF metal trenches defined by the fins of the first array and the first supports. A gate is formed extending laterally across the fins of the first array. First WF metal structures are disposed within the first WF metal trenches within the gate.

公开(公告)号：US09362283B2

公开(公告)日：2016-06-07

申请号：US14793005

申请日：2015-07-07

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Zhendong Hong ,  Susie Tzeng ,  Amol Joshi ,  Ashish Bodke ,  Divya Pisharoty ,  Usha Raghuram ,  Olov Karlsson ,  Kisik Choi ,  Salil Mujumdar ,  Paul R. Besser ,  Jinping Liu ,  Hoon Kim

IPC: H01L27/00 ,  H01L29/00 ,  H01L27/092 ,  H01L21/28 ,  H01L29/51 ,  H01L29/66 ,  H01L21/8238 ,  H01L29/49

CPC classification number: H01L27/0922 ,  H01L21/28097 ,  H01L21/28185 ,  H01L21/28194 ,  H01L21/823835 ,  H01L27/092 ,  H01L29/4975 ,  H01L29/517 ,  H01L29/66545

Abstract: An integrated circuit product includes an NMOS transistor having a gate structure that includes an NMOS gate insulation layer, a first NMOS metal layer positioned on the NMOS gate insulation layer, an NMOS metal silicide material positioned above the first NMOS metal layer, and a layer of a second metal material positioned above and in contact with the NMOS gate insulation layer, the first NMOS metal layer, and the NMOS metal silicide layer. The PMOS transistor has a gate structure that includes a PMOS gate insulation layer, a first PMOS metal layer positioned on the PMOS gate insulation layer, a PMOS metal silicide material positioned above the first PMOS metal layer, and a layer of the second metal material positioned above and in contact with the PMOS gate insulation layer, the first PMOS metal layer, and the PMOS metal silicide layer.

Abstract translation: 集成电路产品包括具有栅极结构的NMOS晶体管，该栅极结构包括NMOS栅绝缘层，位于NMOS栅绝缘层上的第一NMOS金属层，位于第一NMOS金属层上方的NMOS金属硅化物材料， 位于NMOS栅极绝缘层上方并与NMOS栅绝缘层接触的第二金属材料，第一NMOS金属层和NMOS金属硅化物层。 PMOS晶体管具有栅极结构，其包括PMOS栅极绝缘层，位于PMOS栅极绝缘层上的第一PMOS金属层，位于第一PMOS金属层上方的PMOS金属硅化物材料和位于第一PMOS金属层上方的第二金属材料层 并且与PMOS栅绝缘层，第一PMOS金属层和PMOS金属硅化物层接触。

公开(公告)号：US09287180B2

公开(公告)日：2016-03-15

申请号：US14749245

申请日：2015-06-24

Applicant: GLOBALFOUNDRIES, Inc.

Inventor： Jinping Liu ,  Bharat Krishnan ,  Bongki Lee ,  Vidmantas Sargunas ,  Weihua Tong ,  Seung Kim

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

CPC classification number: H01L21/823821 ,  H01L21/823807 ,  H01L21/823814 ,  H01L29/66795 ,  H01L29/66803 ,  H01L29/785

Abstract: Methods for fabricating integrated circuits are provided. In an embodiment, a method for fabricating an integrated circuit includes forming a first fin structure overlying a first type region in a semiconductor substrate and forming a second fin structure overlying a second type region in the semiconductor substrate. A gate is formed overlying each fin structure and defines a channel region in each fin structure. The method includes masking the second type region and etching the first fin structure around the gate in the first fin structure to expose the channel region in the first fin structure. Further, the method includes doping the channel region in the first fin structure, and forming source/drain regions of the first fin structure around the channel region in the first fin structure.

Abstract translation: 提供了制造集成电路的方法。 在一个实施例中，一种用于制造集成电路的方法包括：形成覆盖半导体衬底中的第一类型区域的第一鳍结构，并形成覆盖半导体衬底中第二类型区域的第二鳍结构。 形成在每个鳍结构上方的栅极，并且限定每个鳍结构中的沟道区。 该方法包括掩蔽第二类型区域并蚀刻第一鳍结构中的栅极周围的第一鳍结构以暴露第一鳍结构中的沟道区。 此外，该方法包括在第一鳍结构中掺杂沟道区，并且在第一鳍结构中的沟道区周围形成第一鳍结构的源/漏区。

公开(公告)号：US20150214345A1

公开(公告)日：2015-07-30

申请号：US14164368

申请日：2014-01-27

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Jing Wan ,  Jinping Liu ,  Churamani Gaire ,  Mariappan Hariharaputhiran ,  Andy Chih-Hung Wei ,  Bharat V. Krishnan ,  Cuiqin Xu ,  Michael Ganz

IPC: H01L29/735 ,  H01L29/66 ,  H01L29/88 ,  H01L29/73 ,  H01L21/306 ,  H01L29/161 ,  H01L29/06 ,  H01L29/51 ,  H01L21/02 ,  H01L21/265 ,  H01L29/78 ,  H01L29/16

CPC classification number: H01L29/66151 ,  H01L29/0653 ,  H01L29/1004 ,  H01L29/1079 ,  H01L29/1608 ,  H01L29/165 ,  H01L29/66242 ,  H01L29/66272 ,  H01L29/66636 ,  H01L29/66977 ,  H01L29/7311 ,  H01L29/732 ,  H01L29/7371 ,  H01L29/78 ,  H01L29/7848 ,  H01L29/88

Abstract: Approaches for isolating source and drain regions in an integrated circuit (IC) device (e.g., a metal-oxide-semiconductor field-effect transistor (MOSFET)) are provided. Specifically, the device comprises a gate structure formed over a substrate, a source and drain (S/D) embedded within the substrate adjacent the gate structure, and a liner layer (e.g., silicon-carbon) between the S/D and the substrate. In one approach, the liner layer is formed atop the S/D as well. As such, the liner layer formed in the junction prevents dopant diffusion from the source/drain.

Abstract translation: 提供了用于在集成电路（IC）器件（例如，金属氧化物半导体场效应晶体管（MOSFET））中隔离源极和漏极区域的方法。 具体地，该器件包括形成在衬底上的栅极结构，与栅极结构相邻嵌入在衬底内的源极和漏极（S / D）以及S / D和衬底之间的衬里层（例如，硅 - 碳） 。 在一种方法中，衬垫层也形成在S / D的顶部。 因此，形成在接合部中的衬垫层防止掺杂剂从源极/漏极扩散。

公开(公告)号：US09093476B2

公开(公告)日：2015-07-28

申请号：US13954289

申请日：2013-07-30

Applicant: GLOBALFOUNDRIES, Inc.

Inventor： Jinping Liu ,  Bharat Krishnan ,  Bongki Lee ,  Vidmantas Sargunas ,  Weihua Tong ,  Seung Kim

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

CPC classification number: H01L21/823821 ,  H01L21/823807 ,  H01L21/823814 ,  H01L29/66795 ,  H01L29/66803 ,  H01L29/785

Abstract: Integrated circuits and methods for fabricating integrated circuits are provided. In an embodiment, a method for fabricating an integrated circuit includes forming a channel region of a fin structure with a first side, a second side, an exposed first end surface and an exposed second end surface. A gate is formed overlying the first side and second side of the channel region. The method includes implanting ions into the channel region through the exposed first end surface and the exposed second end surface. Further, the method includes forming source/drain regions of the fin structure adjacent the exposed first end surface and the exposed second end surface of the channel region.

Abstract translation: 提供了用于制造集成电路的集成电路和方法。 在一个实施例中，一种用于制造集成电路的方法包括：具有第一侧，第二侧，暴露的第一端面和暴露的第二端面的翅片结构的沟道区。 形成在沟道区域的第一侧和第二侧上方的栅极。 该方法包括通过暴露的第一端表面和暴露的第二端表面将离子注入沟道区域。 此外，所述方法包括在所述通道区域的暴露的第一端面和暴露的第二端面附近形成所述鳍结构的源极/漏极区域。

公开(公告)号：US20140187028A1

公开(公告)日：2014-07-03

申请号：US13732455

申请日：2013-01-02

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  GLOBALFOUNDRIES INC.

Inventor： Takashi Ando ,  Maryjane Brodsky ,  Michael P. Chudzik ,  Min Dai ,  Siddarth A. Krishnan ,  Joseph F. Shepard, JR. ,  Yanfeng Wang ,  Jinping Liu

IPC: H01L21/8238

CPC classification number: H01L21/823857

Abstract: Embodiments include methods of forming an nFET-tuned gate dielectric and a pFET-tuned gate dielectric. Methods may include forming a high-k layer above a substrate having a pFET region and an nFET region, forming a first sacrificial layer, a pFET work-function metal layer, and a second sacrificial layer above the first high-k layer in the pFET region, and an nFET work-function metal layer above the first high-k layer in the nFET region and above the second sacrificial layer in the pFET region. The first high-k layer then may be annealed to form an nFET gate dielectric layer in the nFET region and a pFET gate dielectric layer in the pFET region. The first high-k layer may be annealed in the presence of a nitrogen source to cause atoms from the nitrogen source to diffuse into the first high-k layer in the nFET region.

Abstract translation: 实施例包括形成nFET调谐的栅极电介质和pFET调谐的栅极电介质的方法。 方法可以包括在pFET区域和nFET区域上形成高k层，形成第一牺牲层，pFET功函数金属层和在pFET中的第一高k层上方的第二牺牲层 区域，以及在nFET区域中的第一高k层上方的nFET功函数金属层，并且在pFET区域中的第二牺牲层上方。 第一高k层然后可以退火以在nFET区域中形成nFET栅极介电层，并在pFET区域中形成pFET栅极电介质层。 第一高k层可以在存在氮源的情况下进行退火，以使来自氮源的原子扩散到nFET区域中的第一高k层。