公开(公告)号：US20230102219A1

公开(公告)日：2023-03-30

申请号：US17478720

申请日：2021-09-17

Applicant: Intel Corporation

Inventor： Arnab Sen Gupta ,  Matthew V. Metz ,  Hui Jae Yoo ,  Justin R. Weber ,  Van H. Le ,  Jason C. Retasket ,  Abhishek A. Sharma ,  Noriyuki Sato ,  Yu-Jin Chen ,  Eric Mattson ,  Edward O. Johnson, JR.

IPC: H01L29/45 ,  H01L29/786 ,  H01L29/78 ,  H01L29/66 ,  H01L27/108 ,  H01L29/417

Abstract: Described herein are integrated circuit devices with metal-oxide semiconductor channels and carbon source and drain (S/D) contacts. S/D contacts conduct current to and from the semiconductor devices, e.g., to the source and drain regions of a transistor. Carbon S/D contacts may be particularly useful with semiconductor devices that use certain channel materials, such as indium gallium zinc oxide.

公开(公告)号：US12183739B2

公开(公告)日：2024-12-31

申请号：US17127280

申请日：2020-12-18

Applicant: Intel Corporation

Inventor： Nicole Thomas ,  Eric Mattson ,  Sudarat Lee ,  Scott B. Clendenning ,  Tobias Brown-Heft ,  I-Cheng Tung ,  Thoe Michaelos ,  Gilbert Dewey ,  Charles Kuo ,  Matthew Metz ,  Marko Radosavljevic ,  Charles Mokhtarzadeh

IPC: H01L27/092 ,  H01L21/02 ,  H01L21/28 ,  H01L21/8238 ,  H01L29/06 ,  H01L29/423 ,  H01L29/49 ,  H01L29/66 ,  H01L29/78 ,  H01L29/786

Abstract: Integrated circuitry comprising a ribbon or wire (RoW) transistor stack within which the transistors have different threshold voltages (Vt). In some examples, a gate electrode of the transistor stack may include only one workfunction metal. A metal oxide may be deposited around one or more channels of the transistor stack as a solid-state source of a metal oxide species that will diffuse toward the channel region(s). As diffused, the metal oxide may remain (e.g., as a silicate, or hafnate) in close proximity to the channel region, thereby altering the dipole properties of the gate insulator material. Different channels of a transistor stack may be exposed to differing amounts or types of the metal oxide species to provide a range of Vt within the stack. After diffusion, the metal oxide may be stripped as sacrificial, or retained.

公开(公告)号：US20220199620A1

公开(公告)日：2022-06-23

申请号：US17127280

申请日：2020-12-18

Applicant: Intel Corporation

Inventor： Nicole Thomas ,  Eric Mattson ,  Sudarat Lee ,  Scott B. Clendenning ,  Tobias Brown-Heft ,  I-Cheng Tung ,  Thoe Michaelos ,  Gilbert Dewey ,  Charles Kuo ,  Matthew Metz ,  Marko Radosavljevic ,  Charles Mokhtarzadeh

IPC: H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/49 ,  H01L29/78 ,  H01L29/786 ,  H01L21/02 ,  H01L21/28 ,  H01L21/8238 ,  H01L29/66

Abstract: Integrated circuitry comprising a ribbon or wire (RoW) transistor stack within which the transistors have different threshold voltages (Vt). In some examples, a gate electrode of the transistor stack may include only one workfunction metal. A metal oxide may be deposited around one or more channels of the transistor stack as a solid-state source of a metal oxide species that will diffuse toward the channel region(s). As diffused, the metal oxide may remain (e.g., as a silicate, or hafnate) in close proximity to the channel region, thereby altering the dipole properties of the gate insulator material. Different channels of a transistor stack may be exposed to differing amounts or types of the metal oxide species to provide a range of Vt within the stack. After diffusion, the metal oxide may be stripped as sacrificial, or retained.

公开(公告)号：US20250133822A1

公开(公告)日：2025-04-24

申请号：US19001219

申请日：2024-12-24

Applicant: Intel Corporation

Inventor： Nicole Thomas ,  Eric Mattson ,  Sudarat Lee ,  Scott B. Clendenning ,  Tobias Brown-Heft ,  I-Cheng Tung ,  Thoe Michaelos ,  Gilbert Dewey ,  Charles Kuo ,  Matthew Metz ,  Marko Radosavljevic ,  Charles Mokhtarzadeh

IPC: H10D84/85 ,  H01L21/02 ,  H01L21/28 ,  H10D30/01 ,  H10D30/67 ,  H10D30/69 ,  H10D62/10 ,  H10D84/01 ,  H10D84/03

Abstract: Integrated circuitry comprising a ribbon or wire (RoW) transistor stack within which the transistors have different threshold voltages (Vt). In some examples, a gate electrode of the transistor stack may include only one workfunction metal. A metal oxide may be deposited around one or more channels of the transistor stack as a solid-state source of a metal oxide species that will diffuse toward the channel region(s). As diffused, the metal oxide may remain (e.g., as a silicate, or hafnate) in close proximity to the channel region, thereby altering the dipole properties of the gate insulator material. Different channels of a transistor stack may be exposed to differing amounts or types of the metal oxide species to provide a range of Vt within the stack. After diffusion, the metal oxide may be stripped as sacrificial, or retained.

公开(公告)号：US20240201586A1

公开(公告)日：2024-06-20

申请号：US18068732

申请日：2022-12-20

Applicant: Intel Corporation

Inventor： James Blackwell ,  Charles Cameron Mokhtarzadeh ,  Lauren Elizabeth Doyle ,  Eric Mattson ,  Patrick Theofanis ,  John J. Plombon ,  Michael Robinson ,  Marie Krysak ,  Paul Meza-Morales ,  Scott Semproni ,  Scott B. Clendenning

IPC: G03F7/004 ,  G03F7/038 ,  G03F7/16 ,  G03F7/20 ,  G03F7/38

CPC classification number: G03F7/0042 ,  G03F7/038 ,  G03F7/167 ,  G03F7/2004 ,  G03F7/38

Abstract: Precursors and methods related to a tin-based photoresist are disclosed herein. In some embodiments, a method for forming a tin-based photoresist may include exposing a tin-containing precursor and a co-reagent to a substrate to form a photoresist having tin clusters; selectively exposing the photoresist to extreme ultraviolet radiation (EUV); and exposing the photoresist to heat to form, in the region, crosslinking between the tin clusters. In some embodiments, the precursor has a formula R1R2Sn(N(CH3)2)2, and R1 and R2 are selected from the group consisting of neo-silyl, neo-pentyl, phenyl, benzyl, methyl-bis(trimethylsilyl), methyl, ethyl, isopropyl, tert-butyl, n-butyl, N,N-dimethylpropylamine, and N, N-dimethlybutylamine. In other embodiments, the precursor includes a chelating alkyl-amine or alkyl-amide ligand featuring a 5 membered or 6 membered tin-based heterocycle bound κ2-C,N with an alkyl group on the ligand backbone, wherein the alkyl group includes methyl, ethyl, vinyl, hydrogen, or tert-butyl.

公开(公告)号：US20230197728A1

公开(公告)日：2023-06-22

申请号：US17554791

申请日：2021-12-17

Applicant: Intel Corporation

Inventor： Nicole K. Thomas ,  Eric Mattson ,  Sudarat Lee ,  Sarah Atanasov ,  Christopher J. Jezewski ,  Charles Mokhtarzadeh ,  Thoe Michaelos ,  I-Cheng Tung ,  Charles C. Kuo ,  Scott B. Clendenning ,  Matthew V. Metz

IPC: H01L27/092 ,  H01L29/06 ,  H01L29/417 ,  H01L29/78

CPC classification number: H01L27/0924 ,  H01L29/0669 ,  H01L29/41791 ,  H01L29/785 ,  H01L2029/7858

Abstract: An integrated circuit includes a lower and upper device portions including bodies of semiconductor material extending horizontally between first source and drain regions in a spaced-apart vertical stack. A first gate structure is around a body in the lower device portion and includes a first gate electrode and a first gate dielectric. A second gate structure is around a body in the upper device portion and includes a second gate electrode and a second gate dielectric, where the first gate dielectric is compositionally distinct from the second gate dielectric. In some embodiments, a dipole species has a first concentration in the first gate dielectric and a different second concentration in the second gate dielectric. A method of fabrication is also disclosed.