公开(公告)号：US11899376B1

公开(公告)日：2024-02-13

申请号：US17900124

申请日：2022-08-31

Applicant: Applied Materials, Inc.

Inventor： Prayudi Lianto ,  Liu Jiang ,  Marvin Louis Bernt ,  El Mehdi Bazizi ,  Guan Huei See

IPC: G03F9/00 ,  G03F7/00

CPC classification number: G03F7/70633 ,  G03F9/7088

Abstract: A method for forming alignment marks leverages pad density and critical dimensions (CDs). In some embodiments, the method includes forming first and second alignment marks on a first substrate and a second substrate where the alignment marks have a width within 5% of the associated CD of copper pads on the respective substrates and forming a first and second dummy patterns around the first and second alignment marks. The first and second dummy patterns have dummy pattern densities within 5% of the respective copper pad density of the first and second substrates and CDs within 5% of the respective copper pad CDs. In some embodiments, alignment marks with physical dielectric material protrusions and recesses on opposite substrate surfaces may further enhance bonding.

公开(公告)号：US20240234531A1

公开(公告)日：2024-07-11

申请号：US18538273

申请日：2023-12-13

Applicant: Applied Materials, Inc.

Inventor： Sai Hooi Yeong ,  Liu Jiang ,  Susmit Singha Roy ,  Abhijit Basu Mallick ,  Benjamin Colombeau ,  El Mehdi Bazizi ,  Balasubramanian Pranatharthiharan

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

CPC classification number: H01L29/42392 ,  H01L21/823807 ,  H01L21/823864 ,  H01L27/092 ,  H01L29/0673 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/6656 ,  H01L29/775 ,  H01L29/78696

Abstract: Semiconductor devices (e.g., gate-all-around (GAA) devices), process tools for manufacturing GAA devices and methods of manufacturing GAA devices, and inner spacer liners and inner spacers for GAA devices, are described. The methods comprise performing a chemical vapor deposition (CVD) process to form an amorphous silicon liner and an inner spacer within a superlattice structure formed on a top surface of a semiconductor substrate. The superlattice structure has a plurality of semiconductor material layers (e.g., silicon germanium (SiGe)) and a corresponding plurality of channel layers (e.g., silicon (Si)). The amorphous silicon liner is conformally formed along the GAA device, including along the recessed semiconductor material layers and the corresponding plurality of channel layers, and the inner spacer is formed directly on the amorphous silicon liner. One or more operations of the methods described herein are performed in situ in an integrated processing tool system.

公开(公告)号：US20240407170A1

公开(公告)日：2024-12-05

申请号：US18659256

申请日：2024-05-09

Applicant: Applied Materials, Inc.

Inventor： Chang Seok Kang ,  Raman Gaire ,  Hsueh Chung Chen ,  In Soo Jung ,  Houssam Lazkani ,  Hui Zhao ,  Liu Jiang ,  Balasubramanian Pranatharthiharan ,  El Mehdi Bazizi

IPC: H10B43/40 ,  H10B41/35 ,  H10B41/49 ,  H10B43/23 ,  H10B43/35

Abstract: Methods and structures to achieve low voltage (LV) and high voltage (HV) scale-down by suppressing the short channel effect of LV as well as increasing breakdown voltage of HV transistor are provided. A semiconductor device comprises a first transistor comprising a first well region of a first conductivity type, a first gate region disposed above the first well region, and a first contact region including a first epitaxial semiconductor adjacent to the first gate region; and a second transistor comprising a second well region of a second conductivity, a second gate region disposed above the second well region, and a second contact region including a second epitaxial semiconductor adjacent to the second gate region.

公开(公告)号：US20240234544A1

公开(公告)日：2024-07-11

申请号：US18538267

申请日：2023-12-13

Applicant: Applied Materials, Inc.

Inventor： Sai Hooi Yeong ,  Benjamin Colombeau ,  Liu Jiang ,  El Mehdi Bazizi ,  Byeong Chan Lee ,  Balasubramanian Pranatharthiharan

IPC: H01L29/66 ,  C23C16/02 ,  C23C16/04 ,  C23C16/32 ,  C23C16/40 ,  C23C16/56 ,  C30B25/04 ,  C30B25/18 ,  C30B29/06 ,  H01L29/06 ,  H01L29/417 ,  H01L29/423 ,  H01L29/775 ,  H01L29/786

CPC classification number: H01L29/66553 ,  C23C16/0227 ,  C23C16/045 ,  C23C16/325 ,  C23C16/401 ,  C23C16/56 ,  C30B25/04 ,  C30B25/186 ,  C30B29/06 ,  H01L29/0673 ,  H01L29/41775 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/775 ,  H01L29/78696

Abstract: Semiconductor devices (e.g., gate-all-around (GAA) devices), process tools for manufacturing GAA devices and methods of manufacturing GAA devices, and inner spacer liners and inner spacers for GAA devices, are described. The methods comprise forming an inner spacer liner within a superlattice structure formed on a top surface of a semiconductor substrate. The superlattice structure has a plurality of recessed semiconductor material layers (e.g., silicon germanium (SiGe)) and a corresponding plurality of channel layers (e.g., silicon (Si)) alternatingly arranged in a plurality of stacked pairs. The inner spacer liner comprises a crystalline silicon-containing liner formed by a selective epitaxial growth (SEG) process. The crystalline silicon-containing liner may be doped with a dopant (e.g., a p-type dopant or an n-type dopant). One or more operations of the methods described herein are performed in situ in an integrated processing tool system.

公开(公告)号：US20240194757A1

公开(公告)日：2024-06-13

申请号：US18383182

申请日：2023-10-24

Applicant: Applied Materials, Inc.

Inventor： Sai Hooi Yeong ,  Liu Jiang ,  Susmit Singha Roy ,  Abhijit Basu Mallick ,  El Mehdi Bazizi ,  Benjamin Colombeau

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

CPC classification number: H01L29/42392 ,  H01L21/823807 ,  H01L21/823864 ,  H01L27/092 ,  H01L29/0673 ,  H01L29/66439 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/775 ,  H01L29/78696

Abstract: Semiconductor devices (e.g., gate-all-around (GAA) devices), process tools for manufacturing GAA devices and methods of manufacturing GAA devices and multilayer inner spacers for GAA devices are described. The multilayer inner spacer comprises an inner layer, a middle layer, and an outer layer within a superlattice structure formed on a top surface of a substrate. The superlattice structure has a plurality of semiconductor material layers (e.g., silicon germanium (SiGe)) and a corresponding plurality of channel layers (e.g., silicon (Si)) alternatingly arranged in a plurality of stacked pairs. In some embodiments, the methods are performed in situ in an integrated deposition and etch processing system.