公开(公告)号：US20180277645A1

公开(公告)日：2018-09-27

申请号：US15470205

申请日：2017-03-27

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Ruilong Xie ,  Chanro Park ,  Min Gyu Sung

IPC: H01L29/423 ,  H01L21/8234 ,  H01L21/28 ,  H01L29/417

Abstract: Structures involving a field-effect transistor and methods for forming a structure that involves a field-effect transistor. A first metal gate electrode and a second metal gate electrode are formed that are embedded in a first dielectric layer. A second dielectric layer is formed on the first metal gate electrode, the second metal gate electrode, and the first dielectric layer. An opening is formed in the second dielectric layer that extends in a vertical direction to expose a section of the first metal gate electrode. The section of the first metal gate electrode is removed, while the second metal gate electrode is masked by the second dielectric layer, to define a gate cut at a location of the opening. The gate cut may be subsequently filled by dielectric material.

公开(公告)号：US20180261514A1

公开(公告)日：2018-09-13

申请号：US15455203

申请日：2017-03-10

Applicant: GLOBALFOUNDRIES INC.

Inventor： Ruilong Xie ,  Laertis Economikos ,  Chanro Park ,  Min Gyu Sung

IPC: H01L21/8238 ,  H01L29/66 ,  H01L21/324 ,  H01L27/092 ,  H01L29/78

CPC classification number: H01L21/823828 ,  H01L21/324 ,  H01L21/823821 ,  H01L21/823878 ,  H01L27/0924 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/785

Abstract: Disclosed are method embodiments for forming an integrated circuit (IC) structure with at least one first-type FINFET and at least one second-type FINFET, wherein the first-type FINFET has a first replacement metal gate (RMG) adjacent to a first semiconductor fin, the second-type FINFET has a second RMG adjacent to a second semiconductor fin, and the first RMG is in end-to-end alignment with the second RMG and physically and electrically isolated from the second RMG by a dielectric column. The method embodiments minimize the risk of the occurrence defects within the RMGs by forming the dielectric column during formation of the first and second RMGs and, particularly, after deposition and anneal of a gate dielectric layer for the first and second RMGs, but before deposition of at least one of multiple work function metal layers. Also disclosed herein are IC structure embodiments formed according to the above-described method embodiments.

公开(公告)号：US10014297B1

公开(公告)日：2018-07-03

申请号：US15589312

申请日：2017-05-08

Applicant: GLOBALFOUNDRIES INC.

Inventor： Lei Sun ,  Wenhui Wang ,  Xunyuan Zhang ,  Ruilong Xie ,  Jia Zeng ,  Xuelian Zhu ,  Min Gyu Sung ,  Shao Beng Law

IPC: H01L27/088 ,  H01L29/66 ,  H01L21/027 ,  H01L21/8234

CPC classification number: H01L27/0886 ,  H01L21/0337 ,  H01L21/823431 ,  H01L29/6681

Abstract: One aspect of the disclosure is directed to a method of forming an integrated circuit structure. The method may include: providing a set of fins over a semiconductor substrate, the set of fins including a plurality of working fins and a plurality of dummy fins, the plurality of dummy fins including a first subset of dummy fins within a pre-defined distance from any of the plurality of working fins, and a second subset of dummy fins beyond the pre-defined distance from any of the plurality of working fins; removing the first subset of dummy fins by an extreme ultraviolet (EUV) lithography technique; and removing at least a portion of the second subset of dummy fins.

公开(公告)号：US10008577B2

公开(公告)日：2018-06-26

申请号：US15225152

申请日：2016-08-01

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Ruilong Xie ,  Min Gyu Sung ,  Chanro Park ,  Hoon Kim

IPC: H01L27/00 ,  H01L21/00 ,  H01L29/49 ,  H01L23/535 ,  H01L29/06 ,  H01L29/40 ,  H01L21/768

CPC classification number: H01L29/4991 ,  H01L21/764 ,  H01L21/76805 ,  H01L21/7682 ,  H01L21/76897 ,  H01L23/535 ,  H01L29/0653 ,  H01L29/401 ,  H01L29/66795 ,  H01L29/785

Abstract: One illustrative method disclosed herein includes, among other things, forming a gate structure above an active region and an isolation region, wherein the gate structure comprises a gate, a first gate cap layer and a first sidewall spacer, removing portions of the first gate cap layer and the first sidewall spacer that are positioned above the active region, while leaving portions of the first gate cap layer and the first sidewall spacer positioned above the isolation region in place, wherein a plurality of spacer cavities are defined adjacent the gate, and forming a replacement air-gap spacer in each of the spacer cavities adjacent the gate and a replacement gate cap layer above the gate, wherein the replacement air-gap spacer comprises an air gap.

公开(公告)号：US10002932B2

公开(公告)日：2018-06-19

申请号：US15345137

申请日：2016-11-07

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Ruilong Xie ,  Min Gyu Sung ,  Hoon Kim ,  Chanro Park

IPC: H01L29/417 ,  H01L21/8234 ,  H01L21/3205 ,  H01L29/45 ,  H01L21/3105 ,  H01L27/088 ,  H01L29/66

CPC classification number: H01L29/41791 ,  H01L21/0332 ,  H01L21/31051 ,  H01L21/32053 ,  H01L21/76829 ,  H01L21/76897 ,  H01L21/823418 ,  H01L21/823431 ,  H01L21/823475 ,  H01L27/088 ,  H01L27/0886 ,  H01L29/41775 ,  H01L29/45 ,  H01L29/665

Abstract: A method includes providing a starting structure, the starting structure including a semiconductor substrate, sources and drains, a hard mask liner layer over the sources and drains, a bottom dielectric layer over the hard mask liner layer, metal gates between the sources and drains, the metal gates defined by spacers, gate cap openings between corresponding spacers and above the metal gates, and a top dielectric layer above the bottom dielectric layer and in the gate cap openings, resulting in gate caps. The method further includes removing portions of the top dielectric layer, the removing resulting in contact openings and divot(s) at a top portion of the spacers and/or gate caps, and filling the divot(s) with etch-stop material, the etch-stop material having an etch-stop ability better than a material of the spacers and gate cap. A resulting semiconductor structure is also disclosed.

公开(公告)号：US20180130895A1

公开(公告)日：2018-05-10

申请号：US15345644

申请日：2016-11-08

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Chanro Park ,  Steven Bentley ,  Hoon Kim ,  Min Gyu Sung ,  Ruilong Xie

IPC: H01L29/66 ,  H01L21/3213 ,  H01L21/288 ,  H01L21/321

CPC classification number: H01L29/66666 ,  H01L21/288 ,  H01L21/32136 ,  H01L21/823456 ,  H01L21/823487 ,  H01L21/823828 ,  H01L21/823871 ,  H01L21/823885 ,  H01L29/7827

Abstract: One illustrative method of forming a vertical transistor device disclosed herein includes, among other things, forming bottom source/drain (S/D) regions. A plurality of vertically oriented channel semiconductor structures is formed above the bottom source/drain (S/D) regions. A gate insulation layer is formed above the vertically oriented channel semiconductor structures. A conformal layer of conductive gate material is formed above the gate insulation layer. The conformal layer of conductive material is etched to define conductive gate spacers on sidewalls of the vertically oriented channel semiconductor structures. Top source/drain (S/D) regions are formed above the vertically oriented channel semiconductor structures.

公开(公告)号：US09865704B2

公开(公告)日：2018-01-09

申请号：US15168690

申请日：2016-05-31

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Ruilong Xie ,  Kwan-Yong Lim ,  Min Gyu Sung ,  Ryan Ryoung-Han Kim

IPC: H01L21/00 ,  H01L29/66 ,  H01L29/06 ,  H01L27/088

CPC classification number: H01L29/66545 ,  H01L21/76224 ,  H01L27/0886 ,  H01L29/0653 ,  H01L29/66795 ,  H01L29/7848 ,  H01L29/7851

Abstract: One illustrative integrated circuit product disclosed herein includes, among other things, a plurality of FinFET devices, each of which comprises a gate structure comprising a high-k gate insulation material and at least one layer of metal, a single diffusion break (SDB) isolation structure positioned in a first trench defined in a semiconductor substrate between first and second active regions, the SDB isolation structure comprising the high-k insulating material and the at least one layer of metal, and a double diffusion break (DDB) isolation structure positioned in a second trench defined in a semiconductor substrate between third and fourth active regions, the DDB isolation structure comprising a first insulating material that substantially fills the second trench.

公开(公告)号：US09859125B2

公开(公告)日：2018-01-02

申请号：US15072626

申请日：2016-03-17

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Min Gyu Sung ,  Ruilong Xie ,  Chanro Park ,  Hoon Kim ,  Kwan-Yong Lim

IPC: H01L21/311 ,  H01L21/3065 ,  H01L21/308 ,  H01L27/11 ,  H01L29/06 ,  H01L29/161

CPC classification number: H01L21/3065 ,  H01L21/3085 ,  H01L21/3086 ,  H01L21/31111 ,  H01L21/31144 ,  H01L27/11 ,  H01L28/00 ,  H01L29/0642 ,  H01L29/0657 ,  H01L29/161

Abstract: Methodologies and a device for SRAM patterning are provided. Embodiments include forming a spacer layer over a fin channel, the fin channel being formed in four different device regions; forming a bottom mandrel over the spacer layer; forming a top mandrel directly over the bottom mandrel, wherein the top and bottom mandrels including different materials; forming a buffer oxide layer over the top mandrel; forming an anti-reflective coating (ARC) over the first OPL; forming a photoresist (PR) over the ARC and patterning the PR; and etching the first OPL, ARC, buffer oxide, and top mandrel with the pattern of the PR, wherein a pitch of the PR as patterned is different in each of the four device regions.

公开(公告)号：US09685522B1

公开(公告)日：2017-06-20

申请号：US15093952

申请日：2016-04-08

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Hoon Kim ,  Min Gyu Sung ,  Ruilong Xie ,  Chanro Park

IPC: H01L29/51 ,  H01L29/423 ,  H01L29/66 ,  H01L21/28

CPC classification number: H01L29/42392 ,  H01L21/28088 ,  H01L29/0673 ,  H01L29/517 ,  H01L29/66742 ,  H01L29/775

Abstract: Methods for forming uniform WF metal layers in gate areas of NS structures in a NS FET and the resulting devices are disclosed. Embodiments include providing NS structures, parallel to and spaced from each other, in a substrate; conformally forming gate dielectric and metal layers, respectively, on all surfaces in a gate area of each NS structure; forming a barrier layer on surfaces in the gate area of each NS structure except on surfaces in between the NS structures by PVD or PECVD; annealing the NS structures including the gate dielectric and metal layers; removing the barrier and metal layers from all surfaces; and forming a WF metal layer on all surfaces in the gate area of each NS structure.

公开(公告)号：US09627535B2

公开(公告)日：2017-04-18

申请号：US15055805

申请日：2016-02-29

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Ruilong Xie ,  Hoon Kim ,  Chanro Park ,  Min Gyu Sung

IPC: H01L29/66 ,  H01L29/08 ,  H01L29/78 ,  H01L29/06 ,  H01L29/16 ,  H01L29/161 ,  H01L29/165

CPC classification number: H01L29/7848 ,  H01L29/0847 ,  H01L29/1608 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66545 ,  H01L29/6656 ,  H01L29/66636 ,  H01L29/66795 ,  H01L29/78 ,  H01L29/785 ,  H01L29/7851

Abstract: A device includes a gate structure having an axial length that is positioned above an active region of a semiconductor substrate and includes a first gate structure portion positioned above the active region and second gate structure portions positioned above an isolation region formed in the semiconductor substrate. An etch stop layer is positioned on the gate structure and covers sidewall surfaces of the second gate structure portions but does not cover any sidewall surfaces of the first gate structure portion. First and second contact trenches extend continuously along the first gate structure portion for less than the axial length of the gate structure and are positioned above at least a portion of the active region on respective opposing first and second sides of the gate structure. An epi semiconductor material is positioned on the active region within each of the first and second contact trenches.