公开(公告)号：US20150249129A1

公开(公告)日：2015-09-03

申请号：US14716045

申请日：2015-05-19

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Laegu KANG ,  Vara Govindeswara Reddy VAKADA ,  Michael GANZ ,  Yi QI ,  Puneet KHANNA ,  Sri Charan VEMULA ,  Srikanth SAMAVEDAM

IPC: H01L29/06 ,  H01L29/167 ,  H01L29/10

CPC classification number: H01L29/0692 ,  H01L21/76224 ,  H01L21/823807 ,  H01L21/823878 ,  H01L21/823892 ,  H01L29/0649 ,  H01L29/1054 ,  H01L29/1095 ,  H01L29/165 ,  H01L29/167 ,  H01L29/66651

Abstract: A method of forming SSRW FETs with controlled step height between a field oxide and epitaxially grown silicon and the resulting devices are provided. Embodiments include providing a SiN layer on a substrate, forming first, second, and third spaced STI regions of field oxide through the SiN layer and into the substrate, removing a top portion of the field oxide for each STI region by a controlled deglaze, removing the SiN layer, forming an n-type region in the substrate between the first and second STI regions and a p-type region in the substrate between the second and third STI regions, and epitaxially growing a Si based layer on the substrate over the n-type and p-type regions.

Abstract translation: 提供了在场氧化物和外延生长的硅之间形成具有受控步长的SSRW FET的方法以及所得到的器件。 实施例包括在衬底上提供SiN层，通过SiN层形成第一，第二和第三间隔的场区氧化物的STI区域并进入衬底，通过受控的消光去除每个STI区域的场氧化物的顶部部分，去除 SiN层，在第一和第二STI区域之间的衬底中形成n型区域和在第二和第三STI区域之间的衬底中的p型区域，并且在衬底上在n上外延生长Si基层 型和p型区。

公开(公告)号：US20200144365A1

公开(公告)日：2020-05-07

申请号：US16180486

申请日：2018-11-05

Applicant: GLOBALFOUNDRIES INC.

Inventor： George R. MULFINGER ,  Timothy J. MCARDLE ,  Judson R. HOLT ,  Steffen A. SICHLER ,  Ömür I. AYDIN ,  Wei HONG ,  Yi QI ,  Hui ZANG ,  Liu JIANG

IPC: H01L29/08 ,  H01L21/8238 ,  H01L29/06 ,  H01L21/28 ,  H01L29/423

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to faceted epitaxial source/drain regions and methods of manufacture. The structure includes: a gate structure over a substrate; an L-shaped sidewall spacer located on sidewalls of the gate structure and extending over the substrate adjacent to the gate structure; and faceted diffusion regions on the substrate, adjacent to the L-shaped sidewall spacer.

公开(公告)号：US20190206743A1

公开(公告)日：2019-07-04

申请号：US15860840

申请日：2018-01-03

Applicant: GLOBALFOUNDRIES INC.

Inventor： Hui ZANG ,  Jianwei PENG ,  Yi QI ,  Hsien-Ching LO ,  Jerome CIAVATTI ,  Ruilong XIE

IPC: H01L21/8234 ,  H01L29/08 ,  H01L29/66 ,  H01L27/088

CPC classification number: H01L21/823487 ,  H01L21/02532 ,  H01L21/0262 ,  H01L21/2018 ,  H01L21/823418 ,  H01L21/823456 ,  H01L27/088 ,  H01L29/0847 ,  H01L29/66545 ,  H01L29/66666 ,  H01L29/7827

Abstract: A method of manufacturing a vertical fin field effect transistor includes forming a first fin in a first device region of a substrate, forming a second fin in a second device region of the substrate, and forming a sacrificial gate having a first gate length adjacent to the first and second fins. After forming a block mask over the sacrificial gate within the first device region, a deposition step or an etching step is used to increase or decrease the gate length of the sacrificial gate within the second device region. Top source/drain junctions formed over the fins are self-aligned to the gate in each of the first and second device regions.

公开(公告)号：US20190081155A1

公开(公告)日：2019-03-14

申请号：US15703221

申请日：2017-09-13

Applicant: GLOBALFOUNDRIES INC.

Inventor： Ruilong XIE ,  Kangguo CHENG ,  Nicolas LOUBET ,  Xin MIAO ,  Pietro MONTANINI ,  John ZHANG ,  Haigou HUANG ,  Jianwei PENG ,  Sipeng GU ,  Hui ZANG ,  Yi QI ,  Xusheng WU

IPC: H01L29/66 ,  H01L21/02 ,  H01L21/3065 ,  H01L29/06 ,  H01L29/423 ,  H01L29/786

Abstract: A method of forming nanosheet and nanowire transistors includes the formation of alternating epitaxial layers of silicon germanium (SiGe) and silicon (Si), where the germanium content within respective layers of the silicon germanium is systemically varied in order to mediate the selective etching of these layers. The germanium content is controlled such that recessed regions created by partial removal of the silicon germanium layers have uniform lateral dimensions, and the backfilling of such recessed regions with an etch selective material results in the formation of a robust etch barrier.

公开(公告)号：US20160260605A1

公开(公告)日：2016-09-08

申请号：US15154444

申请日：2016-05-13

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Yi QI ,  Xunyuan ZHANG ,  Catherine B. LABELLE

IPC: H01L21/02 ,  H01L29/78 ,  H01L29/66 ,  H01L29/06 ,  H01L21/311

CPC classification number: H01L21/02532 ,  H01L21/02639 ,  H01L21/311 ,  H01L21/31144 ,  H01L29/0649 ,  H01L29/0692 ,  H01L29/66795 ,  H01L29/785

Abstract: A method of fabricating raised fin structures is provided, the fabricating including: providing a substrate and at least one dielectric layer over the substrate; forming a trench in the at least one dielectric layer, the trench having a lower portion, a lateral portion, and an upper portion, the upper portion being at least partially laterally offset from the lower portion and being joined to the lower portion by the lateral portion; and, growing a material in the trench to form the raised fin structure, wherein the trench is formed to ensure that any growth defect in the lower portion of the trench terminates either in the lower portion or the lateral portion of the trench and does not extend into the upper portion of the trench.

公开(公告)号：US20160104799A1

公开(公告)日：2016-04-14

申请号：US14511715

申请日：2014-10-10

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Yi QI ,  Catherine B. LABELLE ,  Xiuyu CAI

IPC: H01L29/78 ,  H01L29/10 ,  H01L29/06 ,  H01L29/66 ,  H01L29/423 ,  H01L21/84 ,  H01L21/762 ,  H01L27/12 ,  H01L29/775

CPC classification number: H01L29/7849 ,  B82Y10/00 ,  H01L21/76224 ,  H01L21/76229 ,  H01L21/76283 ,  H01L21/845 ,  H01L27/1211 ,  H01L29/0653 ,  H01L29/0673 ,  H01L29/1054 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/6656 ,  H01L29/66818 ,  H01L29/775

Abstract: A dual-strained Si and SiGe FinFET device with dielectric isolation and a dual-strained nanowire device and methods of forming them are provided. Embodiments include a SiGe SRB formed on a silicon substrate, the SRB having a first region and a second region; a first and a second dielectric isolation layer formed on the first region and on the second region of the SiGe SRB, respectively; a tensile strained Si fin formed on the first dielectric isolation layer; a compressive strained SiGe fin formed on the second dielectric isolation layer; first source/drain regions formed at opposite sides of the tensile strained Si fin; second source/drain regions formed at opposite sides of the compressive strained SiGe fin; a first RMG formed between the first source/drain regions; and a second RMG formed between the second source/drain regions.

Abstract translation: 提供具有绝缘隔离的双应变Si和SiGe FinFET器件和双应变纳米线器件及其形成方法。 实施例包括形成在硅衬底上的SiGe SRB，SRB具有第一区域和第二区域; 分别形成在SiGe SRB的第一区域和第二区域上的第一和第二介电隔离层; 形成在第一介电隔离层上的拉伸应变Si翅片; 形成在所述第二介电隔离层上的压缩应变SiGe鳍; 形成在拉伸应变Si翅片的相对侧的第一源极/漏极区域; 形成在压缩应变SiGe翅片的相对侧的第二源极/漏极区域; 形成在第一源/漏区之间的第一RMG; 以及形成在第二源/漏区之间的第二RMG。

公开(公告)号：US20190206682A1

公开(公告)日：2019-07-04

申请号：US15860161

申请日：2018-01-02

Applicant: GLOBALFOUNDRIES INC.

Inventor： Xunyuan ZHANG ,  Ruilong XIE ,  Yi QI

IPC: H01L21/033 ,  H01L21/02

CPC classification number: H01L21/0335 ,  H01L21/02532 ,  H01L21/02636 ,  H01L21/0332

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to cut margin structures and methods of manufacture. The method includes: forming a plurality of patterned hardmask stacks containing at least a semiconductor layer and a capping layer; removing a portion of a first patterned hardmask stack and a margin of an adjacent hardmask stack of the plurality of the patterned hardmask stacks; and selectively growing material on the margin of the adjacent hardmask stack.

公开(公告)号：US20180374759A1

公开(公告)日：2018-12-27

申请号：US15630547

申请日：2017-06-22

Applicant: GLOBALFOUNDRIES INC.

Inventor： Judson R. HOLT ,  Yi QI ,  Hsien-Ching LO ,  Jianwei PENG

IPC: H01L21/8238 ,  H01L21/02 ,  H01L27/092 ,  H01L29/08 ,  H01L29/06

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to an N-P boundary spacer structure used with finFET devices and methods of manufacture. The method includes forming a plurality of first fin structures, forming a blocking layer between a first fin structure of the plurality of fin structures and a second fin structure of the plurality of fin structures, and forming an epitaxial material on the first fin structure, while blocking the epitaxial material from extending onto the second fin structure by at least the blocking layer formed between the first fin structure and the second fin structure.

公开(公告)号：US20150372084A1

公开(公告)日：2015-12-24

申请号：US14309956

申请日：2014-06-20

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Yi QI ,  Xunyuan ZHANG ,  Catherine B. LABELLE

IPC: H01L29/06 ,  H01L21/02 ,  H01L21/311

CPC classification number: H01L21/02532 ,  H01L21/02639 ,  H01L21/311 ,  H01L21/31144 ,  H01L29/0649 ,  H01L29/0692 ,  H01L29/66795 ,  H01L29/785

Abstract: A method of fabricating raised fin structures is provided, the fabricating including: providing a substrate and at least one dielectric layer over the substrate; forming a trench in the at least one dielectric layer, the trench having a lower portion, a lateral portion, and an upper portion, the upper portion being at least partially laterally offset from the lower portion and being joined to the lower portion by the lateral portion; and, growing a material in the trench to form the raised fin structure, wherein the trench is formed to ensure that any growth defect in the lower portion of the trench terminates either in the lower portion or the lateral portion of the trench and does not extend into the upper portion of the trench.

Abstract translation: 提供一种制造凸起翅片结构的方法，所述制造方法包括：在衬底上提供衬底和至少一个电介质层; 在所述至少一个电介质层中形成沟槽，所述沟槽具有下部，侧部和上部，所述上部至少部分地从所述下部向外偏移并且通过所述侧部与所述下部 一部分; 并且在沟槽中生长材料以形成凸起的翅片结构，其中形成沟槽以确保沟槽的下部中的任何生长缺陷终止于沟槽的下部或横向部分，并且不延伸 进入沟槽的上部。

公开(公告)号：US20150053981A1

公开(公告)日：2015-02-26

申请号：US14511811

申请日：2014-10-10

Applicant: GLOBALFOUNDRIES Inc.

Inventor： Vara Govindeswara Reddy VAKADA ,  Laegu KANG ,  Michael P. GANZ ,  Yi QI ,  Puneet KHANNA ,  Sri Charan VEMULA ,  Srikanth SAMAVEDAM

IPC: H01L29/167 ,  H01L29/04 ,  H01L29/16

CPC classification number: H01L29/167 ,  H01L21/2205 ,  H01L21/26506 ,  H01L21/823807 ,  H01L21/823878 ,  H01L27/088 ,  H01L27/092 ,  H01L29/04 ,  H01L29/105 ,  H01L29/1054 ,  H01L29/1079 ,  H01L29/1608 ,  H01L29/161 ,  H01L29/165 ,  H01L29/66477 ,  H01L29/66651

Abstract: A methodology enabling the formation of steep channel profiles for devices, such as SSRW FETs, having a resultant channel profiles that enables suppression of threshold voltage variation and the resulting device are disclosed. Embodiments include providing STI regions in a silicon wafer; performing a deep well implantation of a dopant into the silicon wafer between STI regions; forming a recess in the doped silicon wafer between the STI regions; performing a shallow well implantation of the dopant into the silicon wafer in the recess; and forming Si:C on the doped silicon wafer in the recess.

Abstract translation: 公开了一种使得能够形成具有能够抑制阈值电压变化的结果信道分布和所得到的器件的诸如SSRW FET的器件的陡峭通道轮廓的方法。 实施例包括在硅晶片中提供STI区域; 在STI区域之间对硅晶片进行深阱注入掺杂剂; 在所述STI区域之间的所述掺杂硅晶片中形成凹部; 在所述凹部中进行所述掺杂剂的浅阱注入到所述硅晶片中; 并在凹陷中的掺杂硅晶片上形成Si：C。