公开(公告)号：US20230197722A1

公开(公告)日：2023-06-22

申请号：US17558026

申请日：2021-12-21

Applicant: Intel Corporation

Inventor： Mohammad HASAN ,  Mohit K. HARAN ,  Leonard P. GULER ,  Pratik PATEL ,  Tahir GHANI ,  Anand S. MURTHY ,  Makram ABD EL QADER

IPC: H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/775 ,  H01L29/786 ,  H01L21/02 ,  H01L21/8238 ,  H01L29/66

CPC classification number: H01L27/092 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/775 ,  H01L29/78618 ,  H01L29/78696 ,  H01L21/02603 ,  H01L21/823807 ,  H01L21/823814 ,  H01L21/823878 ,  H01L29/66545 ,  H01L29/66742 ,  H01L29/66439

Abstract: Gate-all-around integrated circuit structures having epitaxial source or drain region lateral isolation are described. For example, an integrated circuit structure includes a first vertical arrangement of nanowires and a second vertical arrangement of nanowires. A gate stack is over the first and second vertical arrangements of nanowires. First epitaxial source or drain structures are at ends of the first vertical arrangement of nanowires. Second epitaxial source or drain structures are at ends of the second vertical arrangement of nanowires. An intervening dielectric structure is between neighboring ones of the first epitaxial source or drain structures and the second epitaxial source or drain structures. The intervening dielectric structure has a top surface co-planar with a top surface of the gate structure.

公开(公告)号：US20230116170A1

公开(公告)日：2023-04-13

申请号：US18070302

申请日：2022-11-28

Applicant: Intel Corporation

Inventor： Roza KOTLYAR ,  Rishabh MEHANDRU ,  Stephen CEA ,  Biswajeet GUHA ,  Dax CRUM ,  Tahir GHANI

IPC: H01L27/092 ,  H01L21/8238 ,  H01L29/06 ,  H01L29/08 ,  H01L29/49 ,  H01L29/66 ,  H01L29/78

Abstract: Gate-all-around integrated circuit structures having high mobility, and methods of fabricating gate-all-around integrated circuit structures having high mobility, are described. For example, an integrated circuit structure includes a silicon nanowire or nanoribbon. An N-type gate stack is around the silicon nanowire or nanoribbon, the N-type gate stack including a compressively stressing gate electrode. A first N-type epitaxial source or drain structure is at a first end of the silicon nanowire or nanoribbon. A second N-type epitaxial source or drain structure is at a second end of the silicon nanowire or nanoribbon. The silicon nanowire or nanoribbon has a plane between the first N-type epitaxial source or drain structure and the second N-type epitaxial source or drain structure.

公开(公告)号：US20230046755A1

公开(公告)日：2023-02-16

申请号：US17978038

申请日：2022-10-31

Applicant: Intel Corporation

Inventor： Rishabh MEHANDRU ,  Patrick MORROW ,  Ranjith KUMAR ,  Cory E. WEBER ,  Seiyon KIM ,  Stephen M. CEA ,  Tahir GHANI

IPC: H01L29/66 ,  H01L29/78 ,  H01L21/822 ,  H01L21/8238 ,  H01L27/06 ,  H01L27/11 ,  H01L21/8234 ,  H01L21/84 ,  H01L27/108 ,  H01L27/12

Abstract: Vertical integration schemes and circuit elements architectures for area scaling of semiconductor devices are described. In an example, an inverter structure includes a semiconductor fin separated vertically into an upper region and a lower region. A first plurality of gate structures is included for controlling the upper region of the semiconductor fin. A second plurality of gate structures is included for controlling the lower region of the semiconductor fin. The second plurality of gate structures has a conductivity type opposite the conductivity type of the first plurality of gate structures.

公开(公告)号：US20230006065A1

公开(公告)日：2023-01-05

申请号：US17899429

申请日：2022-08-30

Applicant: Intel Corporation

Inventor： Gilbert DEWEY ,  Willy RACHMADY ,  Jack T. KAVALIEROS ,  Cheng-Ying HUANG ,  Matthew V. METZ ,  Sean T. MA ,  Harold KENNEL ,  Tahir GHANI

IPC: H01L29/78 ,  H01L29/20 ,  H01L29/423 ,  H01L29/66 ,  H01L29/51 ,  H01L21/28

Abstract: Techniques are disclosed for an integrated circuit including a ferroelectric gate stack including a ferroelectric layer, an interfacial oxide layer, and a gate electrode. The ferroelectric layer can be voltage activated to switch between two ferroelectric states. Employing such a ferroelectric layer provides a reduction in leakage current in an off-state and provides an increase in charge in an on-state. The interfacial oxide layer can be formed between the ferroelectric layer and the gate electrode. Alternatively, the ferroelectric layer can be formed between the interfacial oxide layer and the gate electrode.

公开(公告)号：US20230005921A1

公开(公告)日：2023-01-05

申请号：US17943038

申请日：2022-09-12

Applicant: Intel Corporation

Inventor： Sagar SUTHRAM ,  Abhishek SHARMA ,  Wilfred GOMES ,  Pushkar RANADE ,  Kuljit S. BAINS ,  Tahir GHANI ,  Anand MURTHY

IPC: H01L27/108 ,  G11C5/06

Abstract: A system can be designed with memory to operate in a low temperature environment. The low temperature memory can be customized for low temperature operation, having a gate stack to adjust a work function of the memory cell transistors to reduce the threshold voltage (Vth) relative to a standard memory device. The reduced temperature can improve the conductivity of other components within the memory, enabling increased memory array sizes, fewer vertical ground channels for stacked devices, and reduced operating power.

公开(公告)号：US20220416042A1

公开(公告)日：2022-12-29

申请号：US17358478

申请日：2021-06-25

Applicant: Intel Corporation

Inventor： William HSU ,  Leonard P. GULER ,  Vivek THIRTHA ,  Nitesh KUMAR ,  Oleg GOLONZKA ,  Tahir GHANI

IPC: H01L29/423 ,  H01L27/092 ,  H01L29/06 ,  H01L29/417 ,  H01L29/78

Abstract: Gate-all-around integrated circuit structures having reduced gate height structures and subfins, and method of fabricating gate-all-around integrated circuit structures having reduced gate height structures, are described. For example, an integrated circuit structure includes a plurality of horizontal nanowires above a subfin, and an isolation structure on either side of the subfin. A gate stack is over the plurality of nanowires, around individual nanowires, and over the subfin. Gate spacers are on either side of the gate stack, and a dielectric capping material is inside the gate spacers with shoulder portions inside the gate stack.

公开(公告)号：US20220416041A1

公开(公告)日：2022-12-29

申请号：US17357895

申请日：2021-06-24

Applicant: Intel Corporation

Inventor： Mohammad HASAN ,  William HSU ,  Biswajeet GUHA ,  Oleg GOLONZKA ,  Tahir GHANI ,  Vivek THIRTHA ,  Nitesh KUMAR

IPC: H01L29/423 ,  H01L29/06 ,  H01L29/66 ,  H01L21/8234

Abstract: Embodiments disclosed herein include semiconductor devices and methods of making semiconductor devices. In an embodiment, a semiconductor device comprises a substrate, where the substrate is a dielectric material, and a vertical stack of semiconductor channels over the substrate. In an embodiment, the semiconductor device further comprises a source at a first end of the semiconductor channels, a drain at a second end of the semiconductor channels, and a barrier between a bottom surface of the source and the substrate.

公开(公告)号：US20220416039A1

公开(公告)日：2022-12-29

申请号：US17357711

申请日：2021-06-24

Applicant: Intel Corporation

Inventor： Dan S. LAVRIC ,  Dax M. CRUM ,  David J. TOWNER ,  Orb ACTON ,  Jitendra Kumar JHA ,  YenTing CHIU ,  Mohit K. HARAN ,  Oleg GOLONZKA ,  Tahir GHANI

IPC: H01L29/423 ,  H01L29/06 ,  H01L29/786 ,  H01L27/092 ,  H01L29/49

Abstract: An integrated circuit structure comprises a first and second vertical arrangement of horizontal nanowires in a PMOS region and in an NMOS region. A first gate stack having a P-type conductive layer surrounds the first vertical arrangement of horizontal nanowires. A second gate stack surrounds the second vertical arrangement of horizontal nanowires. In one embodiment, the second gate stack has an N-type conductive layer, the P-type conductive layer is over the second gate stack, and an N-type conductive fill is between N-type conductive layer and the P-type conductive layer to provide same polarity metal filled gates. In another embodiment, the second gate stack has an N-type conductive layer comprising Titanium (Ti) and “Nitrogen (N) having a low saturation thickness of 3-3.5 nm surrounding the nanowires, and the N-type conductive layer is covered by the P-type conductive layer.

公开(公告)号：US20220415791A1

公开(公告)日：2022-12-29

申请号：US17357773

申请日：2021-06-24

Applicant: Intel Corporation

Inventor： Leonard P. GULER ,  Tsuan-Chung CHANG ,  Michael James MAKOWSKI ,  Benjamin KRIEGEL ,  Robert JOACHIM ,  Desalegne B. TEWELDEBRHAN ,  Charles H. WALLACE ,  Tahir GHANI ,  Mohammad HASAN

IPC: H01L23/528 ,  H01L23/522 ,  H01L21/768

Abstract: Embodiments of the disclosure are in the field of integrated circuit structure fabrication. In an example, an integrated circuit structure includes a dielectric material structure having a trench therein. A conductive interconnect line in the trench, the conductive interconnect line having a length and a width, the width having a cross-sectional profile, wherein the cross-sectional profile of the width of the conductive interconnect line has a bottom lateral width, a mid-height lateral width, and a top lateral width, and wherein the mid-height lateral width is greater than the bottom lateral width, and the mid-height lateral width is greater than the top lateral width.

公开(公告)号：US20220406778A1

公开(公告)日：2022-12-22

申请号：US17353263

申请日：2021-06-21

Applicant: Intel Corporation

Inventor： Tahir GHANI ,  Biswajeet GUHA ,  Mohit K. HARAN ,  Mohammad HASAN ,  Reken PATEL ,  Sean PURSEL ,  Jake JAFFE

IPC: H01L27/092 ,  H01L29/78 ,  H01L29/66 ,  H01L29/06

Abstract: Integrated circuit structures having plugged metal gates, and methods of fabricating integrated circuit structures having plugged metal gates, are described. For example, an integrated circuit structure includes a fin having a portion protruding above a shallow trench isolation (STI) structure. A gate dielectric material layer is over the protruding portion of the fin and over the STI structure. A conductive gate layer is over the gate dielectric material layer. A conductive gate fill material is over the conductive gate layer. A dielectric gate plug is laterally spaced apart from the fin, the dielectric gate plug on the STI structure. The gate dielectric material layer and the conductive gate layer are along a side of the dielectric gate plug, and the gate dielectric material layer is in direct contact with an entirety of the side of the dielectric gate plug.