公开(公告)号：US20230295803A1

公开(公告)日：2023-09-21

申请号：US18135024

申请日：2023-04-14

Applicant: Applied Materials, Inc.

Inventor： Haoming Yan ,  Shih Chung Chen ,  Mandyam Sriram ,  EunKee Hong ,  Janardhan Devrajan ,  Lakmal C. Kalutarage ,  Yongjing Lin ,  Lisa Michelle Mandrell ,  Arkaprava Dan

IPC: C23C16/455 ,  C23C16/56 ,  H01L21/285 ,  H01L21/321 ,  H01L21/3205 ,  H01L29/40

CPC classification number: C23C16/45553 ,  C23C16/56 ,  H01L21/28525 ,  H01L21/28568 ,  H01L21/321 ,  H01L21/32055 ,  H01L21/28575 ,  H01L29/401

Abstract: Methods of forming metal-containing films for electronic devices (e.g., logic devices and/or memory devices) and methods for reducing equivalent oxide thickness (EOT) penalty in electronic devices are disclosed. The methods comprise exposing a substrate surface to a metal precursor, such as titanium chloride (TiCl4), a reducing agent, such as a cyclic 1,4-diene, and a reactant, ammonia (NH3), either simultaneously, partially simultaneously or separately and sequentially to form the metal-containing film.

公开(公告)号：US20250081593A1

公开(公告)日：2025-03-06

申请号：US18459582

申请日：2023-09-01

Applicant: Applied Materials ,Inc

Inventor： Yongjing Lin ,  Zhihui Liu ,  Sourav Garg ,  Lu Li ,  Haoming Yan ,  Haoyan Sha ,  Bhaskar Jyoti Bhuyan ,  Shih Chung Chen ,  Janardhan Devrajan ,  Srinivas Gandikota

IPC: H01L21/8238 ,  H01L21/02 ,  H01L27/092 ,  H01L29/08 ,  H01L29/423

Abstract: Methods of manufacturing electronic devices, such as transistors (negative metal-oxide-semiconductor (NMOS) transistors (e.g., an N-metal stack) and positive metal-oxide-semiconductor (PMOS) transistors (e.g., a P-metal stack)) are described. Embodiments of the disclosure are directed to methods of improving PMOS transistor performance by inhibiting N-metal layer growth. The present disclosure provides two types of processes to reduce or inhibit N-metal layer growth. The disclosure provides methods which include forming a self-assembled monolayer (SAM) on the metal surface (e.g., titanium nitride (TiN)) of the PMOS, and methods which include forming a silicon-containing layer such as silicon oxide (SiOx) on the TiN surface. These two types of processes significantly reduce or inhibit the subsequent growth of an N-metal layer, such as titanium aluminum carbide (TiAlC), on the TiN surface of the PMOS.