公开(公告)号：US20170330955A1

公开(公告)日：2017-11-16

申请号：US15525571

申请日：2014-12-22

Applicant: INTEL CORPORATION

Inventor： NADIA M. RAHHAL-ORABI ,  TAHIR GHANI ,  WILLY RACHMADY ,  MATTHEW V. METZ ,  JACK T. KAVALIEROS ,  GILBERT DEWEY ,  ANAND S. MURTHY ,  CHANDRA S. MOHAPATRA

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

CPC classification number: H01L29/66545 ,  H01L21/28114 ,  H01L29/42376 ,  H01L29/66795 ,  H01L29/785

Abstract: Systems and methods of optimizing a gate profile for performance and gate fill are disclosed. A semiconductor device having an optimized gate profile includes a semiconductor substrate and a fin extending above the semiconductor substrate. A pair of source and drain regions are disposed on opposite sides of a channel region. A gate stack is disposed over the channel region, where the gate stack includes a top portion separated from a bottom portion by a tapered portion. The top portion and at least a portion of the tapered portion are disposed above the fm.

公开(公告)号：US20150076571A1

公开(公告)日：2015-03-19

申请号：US14552959

申请日：2014-11-25

Applicant: Intel Corporation

Inventor： NILOY MUKHERJEE ,  GILBERT DEWEY ,  MATTHEW V. METZ ,  JACK T. KAVALIEROS ,  ROBERT S. CHAU

IPC: H01L29/51 ,  H01L29/78

CPC classification number: H01L29/517 ,  H01L21/285 ,  H01L21/28512 ,  H01L21/76831 ,  H01L21/823418 ,  H01L21/823431 ,  H01L21/823475 ,  H01L23/485 ,  H01L29/0895 ,  H01L29/41791 ,  H01L29/452 ,  H01L29/456 ,  H01L29/518 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/78 ,  H01L29/785 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A contact to a source or drain region. The contact has a conductive material, but that conductive material is separated from the source or drain region by an insulator.

Abstract translation: 与源极或漏极区的接触。 接触件具有导电材料，但是导电材料通过绝缘体与源极或漏极区域分离。

公开(公告)号：US20190189794A1

公开(公告)日：2019-06-20

申请号：US16283756

申请日：2019-02-23

Applicant: INTEL CORPORATION

Inventor： CHANDRA S. MOHAPATRA ,  ANAND S. MURTHY ,  GLENN A. GLASS ,  TAHIR GHANI ,  WILLY RACHMADY ,  JACK T. KAVALIEROS ,  GILBERT DEWEY ,  MATTHEW V. METZ ,  HAROLD W. KENNEL

IPC: H01L29/78 ,  H01L29/12 ,  H01L29/775 ,  H01L29/66 ,  H01L27/088 ,  H01L29/205 ,  H01L29/10

CPC classification number: H01L29/785 ,  H01L21/02241 ,  H01L27/0886 ,  H01L29/1054 ,  H01L29/125 ,  H01L29/205 ,  H01L29/66795 ,  H01L29/775

Abstract: Techniques are disclosed for forming high mobility NMOS fin-based transistors having an indium-rich channel region electrically isolated from the sub-fin by an aluminum-containing layer. The aluminum aluminum-containing layer may be provisioned within an indium-containing layer that includes the indium-rich channel region, or may be provisioned between the indium-containing layer and the sub-fin. The indium concentration of the indium-containing layer may be graded from an indium-poor concentration near the aluminum-containing barrier layer to an indium-rich concentration at the indium-rich channel layer. The indium-rich channel layer is at or otherwise proximate to the top of the fin, according to some example embodiments. The grading can be intentional and/or due to the effect of reorganization of atoms at the interface of indium-rich channel layer and the aluminum-containing barrier layer. Numerous variations and embodiments will be appreciated in light of this disclosure.

公开(公告)号：US20190189785A1

公开(公告)日：2019-06-20

申请号：US16326845

申请日：2016-09-28

Applicant: INTEL CORPORATION

Inventor： KARTHIK JAMBUNATHAN ,  GLENN A. GLASS ,  ANAND S. MURTHY ,  JACK T. KAVALIEROS ,  SEUNG HOON SUNG ,  BENJAMIN CHU-KUNG ,  TAHIR GHANI

IPC: H01L29/66 ,  H01L29/10 ,  H01L29/78

CPC classification number: H01L29/66803 ,  H01L29/10 ,  H01L29/1025 ,  H01L29/66 ,  H01L29/66545 ,  H01L29/66795 ,  H01L29/78 ,  H01L29/7851

Abstract: Integrated circuit transistor structures are disclosed that include a gate structure that is lattice matched to the underlying channel. In particular, the gate dielectric is lattice matched to the underlying semiconductor channel material, and in some embodiments, so is the gate electrode. In an example embodiment, single crystal semiconductor channel material and single crystal gate dielectric material that are sufficiently lattice matched to each other are epitaxially deposited. In some cases, the gate electrode material may also be a single crystal material that is lattice matched to the semiconductor channel material, thereby allowing the gate electrode to impart strain on the channel via the also lattice matched gate dielectric. A gate dielectric material that is lattice matched to the channel material can be used to reduce interface trap density (Dit). The techniques can be used in both planar and non-planar (e.g., finFET and nanowire) metal oxide semiconductor (MOS) transistor architectures.

公开(公告)号：US20190097055A1

公开(公告)日：2019-03-28

申请号：US16081572

申请日：2016-04-01

Applicant: INTEL CORPORATION

Inventor： GILBERT DEWEY ,  TAHIR GHANI ,  WILLY RACHMADY ,  JACK T. KAVALIEROS ,  MATTHEW V. METZ ,  ANAND S. MURTHY ,  CHANDRA S. MOHAPATRA

IPC: H01L29/78 ,  H01L29/423 ,  H01L29/66 ,  H01L29/10 ,  H01L29/08 ,  H01L21/8238

CPC classification number: H01L29/7853 ,  H01L21/823807 ,  H01L21/823821 ,  H01L21/823828 ,  H01L21/823864 ,  H01L21/823878 ,  H01L29/0847 ,  H01L29/1054 ,  H01L29/4236 ,  H01L29/66545 ,  H01L29/6656 ,  H01L29/6681 ,  H01L29/66818

Abstract: Techniques are disclosed for forming a beaded fin transistor. As will be apparent in light of this disclosure, a transistor including a beaded fin configuration may be formed by starting with a multilayer finned structure, and then selectively etching one or more of the layers to form at least one necked (or relatively narrower) portion, thereby forming a beaded fin structure. The beaded fin transistor configuration has improved gate control over a finned transistor configuration having the same top down area or footprint, because the necked/narrower portions increase gate surface area as compared to a non-necked finned structure, such as finned structures used in finFET devices. Further, because the beaded fin structure remains intact (e.g., as compared to a gate-all-around (GAA) transistor configuration where nanowires are separated from each other), the parasitic capacitance problems caused by GAA transistor configurations are mitigated or eliminated.

公开(公告)号：US20190043993A1

公开(公告)日：2019-02-07

申请号：US16076550

申请日：2016-03-11

Applicant: INTEL CORPORATION

Inventor： CHANDRA S. MOHAPATRA ,  GLENN A. GLASS ,  ANAND S. MURTHY ,  KARTHIK JAMBUNATHAN ,  WILLY RACHMADY ,  GILBERT DEWEY ,  TAHIR GHANI ,  JACK T. KAVALIEROS

IPC: H01L29/786 ,  H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/66 ,  H01L21/02 ,  H01L21/306 ,  H01L21/762 ,  H01L21/8252

Abstract: Techniques are disclosed for forming transistors including one or more group III-V semiconductor material nanowires using sacrificial group IV semiconductor material layers. In some cases, the transistors may include a gate-all-around (GAA) configuration. In some cases, the techniques may include forming a replacement fin stack that includes group III-V material layer (such as indium gallium arsenide, indium arsenide, or indium antimonide) formed on a group IV material buffer layer (such as silicon, germanium, or silicon germanium), such that the group IV buffer layer can be later removed using a selective etch process to leave the group III-V material for use as a nanowire in a transistor channel. In some such cases, the group III-V material layer may be grown pseudomorphically to the underlying group IV material, so as to not form misfit dislocations. The techniques may be used to form transistors including any number of nanowires.

公开(公告)号：US20180374928A1

公开(公告)日：2018-12-27

申请号：US15776752

申请日：2015-12-24

Applicant: Intel Corporation

Inventor： GILBERT DEWEY ,  ASHISH AGRAWAL ,  BENJAMIN CHU-KUNG ,  VAN H. LE ,  MATTHEW V. METZ ,  WILLY RACHMADY ,  JACK T. KAVALIEROS ,  RAFAEL RIOS

IPC: H01L29/51 ,  H01L29/78 ,  H01L29/66 ,  H01L29/16

CPC classification number: H01L29/513 ,  H01L29/16 ,  H01L29/517 ,  H01L29/66795 ,  H01L29/78 ,  H01L29/785 ,  H01L29/7851

Abstract: Embodiments of the present disclosure describe semiconductor devices comprised of a semiconductor substrate with a metal oxide semiconductor field effect transistor having a channel including germanium or silicon-germanium, where a dielectric layer is coupled to the channel. The dielectric layer may include a metal oxide and at least one additional element, where the at least one additional element may increase a band gap of the dielectric layer. A gate electrode may be coupled to the dielectric layer. Other embodiments may be described and/or claimed.

公开(公告)号：US20180047839A1

公开(公告)日：2018-02-15

申请号：US15790907

申请日：2017-10-23

Applicant: INTEL CORPORATION

Inventor： RAVI PILLARISETTY ,  JACK T. KAVALIEROS ,  WILLY RACHMADY ,  UDAY SHAH ,  BENJAMIN CHU-KUNG ,  MARKO RADOSAVLJEVIC ,  NILOY MUKHERJEE ,  GILBERT DEWEY ,  BEEN Y. JIN ,  ROBERT S. CHAU

IPC: H01L29/775 ,  B82Y10/00 ,  H01L29/778 ,  H01L29/66 ,  H01L29/267 ,  H01L29/15 ,  H01L29/10 ,  H01L29/06 ,  H01L29/78 ,  H01L21/76 ,  H01L29/51 ,  H01L29/165

CPC classification number: H01L29/775 ,  B82Y10/00 ,  H01L21/76 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/122 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/66977 ,  H01L29/7782 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming a non-planar germanium quantum well structure. In particular, the quantum well structure can be implemented with group IV or III-V semiconductor materials and includes a germanium fin structure. In one example case, a non-planar quantum well device is provided, which includes a quantum well structure having a substrate (e.g. SiGe or GaAs buffer on silicon), a IV or III-V material barrier layer (e.g., SiGe or GaAs or AlGaAs), a doping layer (e.g., delta/modulation doped), and an undoped germanium quantum well layer. An undoped germanium fin structure is formed in the quantum well structure, and a top barrier layer deposited over the fin structure. A gate metal can be deposited across the fin structure. Drain/source regions can be formed at respective ends of the fin structure.

公开(公告)号：US20160172472A1

公开(公告)日：2016-06-16

申请号：US15043935

申请日：2016-02-15

Applicant: INTEL CORPORATION

Inventor： RAVI PILLARISETTY ,  JACK T. KAVALIEROS ,  WILLY RACHMADY ,  UDAY SHAH ,  BENJAMIN CHU-KUNG ,  MARKO RADOSAVLJEVIC ,  NILOY MUKHERJEE ,  GILBERT DEWEY ,  BEEN Y. JIN ,  ROBERT S. CHAU

IPC: H01L29/775 ,  H01L29/06 ,  H01L29/78 ,  H01L29/15

CPC classification number: H01L29/775 ,  B82Y10/00 ,  H01L21/76 ,  H01L29/0653 ,  H01L29/1054 ,  H01L29/155 ,  H01L29/165 ,  H01L29/267 ,  H01L29/517 ,  H01L29/66431 ,  H01L29/66439 ,  H01L29/66477 ,  H01L29/66795 ,  H01L29/66977 ,  H01L29/7782 ,  H01L29/7849 ,  H01L29/785 ,  H01L29/7851

Abstract: Techniques are disclosed for forming a non-planar germanium quantum well structure. In particular, the quantum well structure can be implemented with group IV or III-V semiconductor materials and includes a germanium fin structure. In one example case, a non-planar quantum well device is provided, which includes a quantum well structure having a substrate (e.g. SiGe or GaAs buffer on silicon), a IV or III-V material barrier layer (e.g., SiGe or GaAs or AlGaAs), a doping layer (e.g., delta/modulation doped), and an undoped germanium quantum well layer. An undoped germanium fin structure is formed in the quantum well structure, and a top barrier layer deposited over the fin structure. A gate metal can be deposited across the fin structure. Drain/source regions can be formed at respective ends of the fin structure.

Abstract translation: 公开了用于形成非平面锗量子阱结构的技术。 特别地，量子阱结构可以用IV或III-V族半导体材料实现，并且包括锗鳍结构。 在一个示例性情况下，提供了非平面量子阱器件，其包括具有衬底（例如硅上的SiGe或GaAs缓冲器），IV或III-V材料阻挡层（例如，SiGe或GaAs或 AlGaAs），掺杂层（例如，掺杂Δ/调制）和未掺杂的锗量子阱层。 在量子阱结构中形成未掺杂的锗鳍结构，以及沉积在鳍结构上的顶部势垒层。 栅极金属可以跨鳍片结构沉积。 排水/源极区域可以形成在翅片结构的相应端部处。

公开(公告)号：US20210288108A1

公开(公告)日：2021-09-16

申请号：US16326896

申请日：2016-09-23

Applicant: Intel Corporation

Inventor： ABHISHEK A. SHARMA ,  VAN H. LE ,  GILBERT DEWEY ,  RAFAEL RIOS ,  JACK T. KAVALIEROS ,  SHRIRAM SHIVARAMAN

IPC: H01L27/24 ,  H01L45/00

Abstract: Embodiments include a threshold switching selector. The threshold switching selector may include a threshold switching layer and a semiconductor layer between two electrodes. A memory cell may include the threshold switching selector coupled to a storage cell. The storage cell may be a PCRAM storage cell, a MRAM storage cell, or a RRAM storage cell. In addition, a RRAM device may include a RRAM storage cell, coupled to a threshold switching selector, where the threshold switching selector may include a threshold switching layer and a semiconductor layer, and the semiconductor layer of the threshold switching selector may be shared with the semiconductor layer of the RRAM storage cell.