公开(公告)号：US20240178273A1

公开(公告)日：2024-05-30

申请号：US18072559

申请日：2022-11-30

Applicant: Intel Corporation

Inventor： Chiao-Ti HUANG ,  Tao CHU ,  Guowei XU ,  Chung-Hsun LIN ,  Brian Greene

IPC: H01L29/06 ,  H01L23/48 ,  H01L27/088 ,  H01L29/417 ,  H01L29/786

CPC classification number: H01L29/0673 ,  H01L23/481 ,  H01L27/0886 ,  H01L29/41733 ,  H01L29/78696

Abstract: Integrated circuit structures having source or drain contacts with enhanced contact area, and methods of fabricating integrated circuit structures having source or drain contacts with enhanced contact area, are described. For example, an integrated circuit structure includes a plurality of horizontally stacked nanowires. A gate structure is over the plurality of horizontally stacked nanowires. An epitaxial source or drain structure is at an end of the plurality of horizontally stacked nanowires. A conductive contact structure is vertically over the epitaxial source or drain structure. The conductive contact structure has a lower portion extending over the top and along upper portions of sides of the epitaxial source or drain structure, and has an upper portion on the lower portion. The upper portion has a maximum lateral width less than a maximum lateral width of the lower portion.

公开(公告)号：US20250159932A1

公开(公告)日：2025-05-15

申请号：US18389427

申请日：2023-11-14

Applicant: Intel Corporation

Inventor： Chiao-Ti HUANG ,  Swapnadip GHOSH ,  Matthew PRINCE ,  Omair SAADAT ,  Yulia GOTLIB ,  Rajaram PAI ,  Reza BAYATI ,  Ryan PEARCE ,  Lin HU

IPC: H01L29/423 ,  H01L21/8234 ,  H01L27/088 ,  H01L29/06 ,  H01L29/08 ,  H01L29/66 ,  H01L29/775 ,  H01L29/786

Abstract: Integrated circuit structures having metal gate cut plug structures are described. For example, an integrated circuit structure includes a vertical stack of horizontal nanowires. A gate electrode is over the vertical stack of horizontal nanowires. A conductive trench contact is adjacent to the gate electrode. A dielectric sidewall spacer is between the gate electrode and the conductive trench contact. A dielectric cut plug structure extends through the gate electrode, through the dielectric sidewall spacer, and through the conductive trench contact. The dielectric cut plug structure includes silicon and oxygen, with oxygen in direct contact with a metal-containing layer of the gate electrode.

公开(公告)号：US20250113559A1

公开(公告)日：2025-04-03

申请号：US18374600

申请日：2023-09-28

Applicant: Intel Corporation

Inventor： Guowei XU ,  Chiao-Ti HUANG ,  Feng ZHANG ,  Robin CHAO ,  Tao CHU ,  Anand S. MURTHY ,  Ting-Hsiang HUNG ,  Chung-Hsun LIN ,  Oleg GOLONZKA ,  Yang ZHANG ,  Chia-Ching LIN

IPC: H01L29/06 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/08 ,  H01L29/66 ,  H01L29/78

Abstract: Trench contact structures with etch stop layers, and methods of fabricating trench contact structures with etch-stop layers, are described. In an example, an integrated circuit structure includes a fin structure. An epitaxial source or drain structure is on the fin structure. An isolation structure is laterally adjacent to sides of the fin structure. A dielectric layer is on at least a portion of a top surface of the isolation structure and partially surrounds the epitaxial source or drain structure and leaves an exposed portion of the epitaxial source or drain structure. A conductive trench contact structure is on the exposed portion of the epitaxial source or drain structure. The conductive trench contact structure does not extend into the isolation structure.

公开(公告)号：US20250113547A1

公开(公告)日：2025-04-03

申请号：US18375064

申请日：2023-09-29

Applicant: Intel Corporation

Inventor： Chia-Ching LIN ,  Tao CHU ,  Chiao-Ti HUANG ,  Guowei XU ,  Robin CHAO ,  Feng ZHANG ,  Yue ZHONG ,  Yang ZHANG ,  Ting-Hsiang HUNG ,  Kevin P. O’BRIEN ,  Uygar E. AVCI ,  Carl H. NAYLOR ,  Mahmut Sami KAVRIK ,  Andrey VYATSKIKH ,  Rachel STEINHARDT ,  Chelsey DOROW ,  Kirby MAXEY

IPC: H01L29/786 ,  H01L29/06 ,  H01L29/24 ,  H01L29/417 ,  H01L29/66 ,  H01L29/775

Abstract: Integrated circuit structures having internal spacers for 2D channel materials, and methods of fabricating integrated circuit structures having internal spacers for 2D channel materials, are described. For example, an integrated circuit structure includes a stack of two-dimensional (2D) material nanowires. A gate structure is vertically around the stack of 2D material nanowires. Internal gate spacers are between vertically adjacent ones of the stack of 2D material nanowires and laterally adjacent to the gate structure. The 2D material nanowires are recessed relative to the internal gate spacers. Conductive contact structures are at corresponding ends of the stack of 2D material nanowires, the conductive contact structures adjacent to the internal gate spacers and vertically overlapping with the internal gate spacers.

公开(公告)号：US20250112120A1

公开(公告)日：2025-04-03

申请号：US18375084

申请日：2023-09-29

Applicant: Intel Corporation

Inventor： Tao CHU ,  Minwoo JANG ,  Yanbin LUO ,  Paul PACKAN ,  Conor P. PULS ,  Guowei XU ,  Chiao-Ti HUANG ,  Robin CHAO ,  Feng ZHANG ,  Ting-Hsiang HUNG ,  Chia-Ching LIN ,  Yang ZHANG ,  Chung-Hsun LIN ,  Anand S. MURTHY

IPC: H01L23/48 ,  H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/775 ,  H01L29/786

Abstract: Integrated circuit structures having deep via bar width tuning are described. For example, an integrated circuit structure includes a plurality of gate lines extending over first and second semiconductor nanowire stack channel structures or fin structures. A plurality of trench contacts is intervening with the plurality of gate lines. A conductive structure is between the first and second semiconductor nanowire stack channel structures or fin structures, the conductive structure having a first width in a first region and a second width in a second region between the first and second semiconductor nanowire stack channel structures or fin structures, the second width different than the first width.

公开(公告)号：US20250098260A1

公开(公告)日：2025-03-20

申请号：US18370287

申请日：2023-09-19

Applicant: Intel Corporation

Inventor： Guowei XU ,  Feng ZHANG ,  Chiao-Ti HUANG ,  Robin CHAO ,  Tao CHU ,  Chung-Hsun LIN ,  Oleg GOLONZKA ,  Yang ZHANG ,  Ting-Hsiang HUNG ,  Chia-Ching LIN ,  Anand S. MURTHY

IPC: H01L29/66 ,  H01L29/06 ,  H01L29/08 ,  H01L29/423 ,  H01L29/49 ,  H01L29/775

Abstract: Integrated circuit structures having patch spacers, and methods of fabricating integrated circuit structures having patch spacers, are described. For example, an integrated circuit structure includes a stack of horizontal nanowires. A gate structure is vertically around the stack of horizontal nanowires, the stack of horizontal nanowires extending laterally beyond the gate structure. An internal gate spacer is between vertically adjacent ones of the stack of horizontal nanowires and laterally adjacent to the gate structure. An external gate spacer is along sides of the gate structure and over the stack of horizontal nanowires, the external gate spacer having one or more patch spacers therein.

公开(公告)号：US20250113595A1

公开(公告)日：2025-04-03

申请号：US18374607

申请日：2023-09-28

Applicant: Intel Corporation

Inventor： Tao CHU ,  Minwoo JANG ,  Yanbin LUO ,  Paul PACKAN ,  Guowei XU ,  Chiao-Ti HUANG ,  Robin CHAO ,  Feng ZHANG ,  Ting-Hsiang HUNG ,  Chia-Ching LIN ,  Yang ZHANG ,  Chung-Hsun LIN ,  Anand S. MURTHY

IPC: H01L27/088 ,  H01L29/06 ,  H01L29/423 ,  H01L29/775 ,  H01L29/786

Abstract: Multiple voltage threshold integrated circuit structures with local layout effect tuning, and methods of fabricating multiple voltage threshold integrated circuit structures with local layout effect tuning, are described. For example, an integrated circuit structure includes a first fin structure or vertical arrangement of horizontal nanowires. A second fin structure or vertical arrangement of horizontal nanowires is laterally spaced apart from the first fin structure or vertical arrangement of horizontal nanowires. An N-type gate structure is over the first fin structure or vertical arrangement of horizontal nanowires. A P-type gate structure is over the second fin structure or vertical arrangement of horizontal nanowires, the P-type gate structure in contact with the N-type gate structure with a PN boundary between the P-type gate structure and the N-type gate structure. The PN boundary is offset from a central location between the first fin structure or vertical arrangement of horizontal nanowires and the second fin structure or vertical arrangement of horizontal nanowires.

公开(公告)号：US20250107175A1

公开(公告)日：2025-03-27

申请号：US18372506

申请日：2023-09-25

Applicant: Intel Corporation

Inventor： Tao CHU ,  Minwoo JANG ,  Yanbin LUO ,  Paul PACKAN ,  Guowei XU ,  Chiao-Ti HUANG ,  Robin CHAO ,  Feng ZHANG ,  Ting-Hsiang HUNG ,  Chia-Ching LIN ,  Yang ZHANG ,  Chung-Hsun LIN ,  Anand S. MURTHY

IPC: H01L29/06 ,  H01L21/8234 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/417 ,  H01L29/423 ,  H01L29/66 ,  H01L29/78

Abstract: Integrated circuit structures having reduced local layout effects, and methods of fabricating integrated circuit structures having reduced local layout effects, are described. For example, an integrated circuit structure includes an NMOS region including a first plurality of fin structures or vertical stacks of horizontal nanowires, and first alternating gate lines and trench contact structures over the first plurality of fin structures or vertical stacks of horizontal nanowires. The integrated circuit structure also includes a PMOS region including a second plurality of fin structures or vertical stacks of horizontal nanowires, and second alternating gate and trench contact structures over the second plurality of fin structures or vertical stacks of horizontal nanowires. A gate line is shared between the NMOS region and the PMOS region, and a trench contact structure is shared between the NMOS region and the PMOS region. Ends of the gate line shared between the NMOS region and the PMOS region are offset from ends of the trench contact structure shared between the NMOS region and the PMOS region.

公开(公告)号：US20250006733A1

公开(公告)日：2025-01-02

申请号：US18214898

申请日：2023-06-27

Applicant: Intel Corporation

Inventor： Swapnadip GHOSH ,  Chiao-Ti HUANG ,  Amritesh RAI ,  Akitomo MATSUBAYASHI ,  Fariha KHAN ,  Anupama BOWONDER ,  Reken PATEL ,  Chi-Hing CHOI

IPC: H01L27/092 ,  H01L21/8238

Abstract: Integrated circuit structures having differential epitaxial source or drain dent are described. For example, an integrated circuit structure includes a first sub-fin structure beneath a first stack of nanowires or fin. A second sub-fin structure is beneath a second stack of nanowires or fin. A first epitaxial source or drain structure is at an end of the first stack of nanowires of fin, the first epitaxial source or drain structure having no dent or a shallower dent therein. A second epitaxial source or drain structure is at an end of the second stack of nanowires or fin, the second epitaxial source or drain structure having a deeper dent therein.

公开(公告)号：US20240178101A1

公开(公告)日：2024-05-30

申请号：US18072569

申请日：2022-11-30

Applicant: Intel Corporation

Inventor： Tao CHU ,  Guowei XU ,  Feng ZHANG ,  Chiao-Ti HUANG ,  Minwoo JANG

IPC: H01L23/48 ,  H01L27/088 ,  H01L29/06 ,  H01L29/417 ,  H01L29/786

CPC classification number: H01L23/481 ,  H01L27/0886 ,  H01L29/0673 ,  H01L29/41733 ,  H01L29/78696

Abstract: Integrated circuit structures having recessed trench contacts and deep boundary vias are described. For example, an integrated circuit structure includes a plurality of gate lines extending over a plurality of semiconductor nanowire stack channel structures. A plurality of trench contacts extends over a plurality of source or drain structures, where a first one of the plurality of trench contacts has a recess therein. A backside metal routing layer is extending beneath the plurality of gate lines and beneath the plurality of trench contacts. A conductive structure couples the backside metal routing layer to a second one of the one or more of the plurality of trench contacts. The conductive structure includes a pillar portion in contact with the second one of the plurality of trench contacts, the pillar portion on a line portion, the line portion in contact with and extending along the backside metal routing layer.