公开(公告)号：US20250006552A1

公开(公告)日：2025-01-02

申请号：US18753144

申请日：2024-06-25

Applicant: Applied Materials Inc.

Inventor： Liqi Wu ,  Rongjun Wang ,  Feng Q. Liu ,  Qihao Zhu ,  Jiang Lu ,  David Thompson ,  Xianmin Tang

IPC: H01L21/768 ,  H01L21/3213

Abstract: Embodiments of the disclosure relate to methods of selectively depositing a metallic material after forming a flowable polymer film to protect a substrate surface within a feature. A first metal liner is deposited by physical vapor deposition (PVD). The flowable polymer film is formed on the first metal liner on the bottom. A portion of the first metal liner is selectively removed from the top surface and the at least one sidewall. The flowable polymer film is removed. In some embodiments, the cycle of depositing a metal liner, forming a flowable polymer film, removing a portion of the metal liner, and removing the flowable polymer film is repeated at least once. A metal layer is deposited on the plurality of metal liners (e.g., first metal liner and the second metal liner) and the metal layer is free of seams or voids.

公开(公告)号：US20250006555A1

公开(公告)日：2025-01-02

申请号：US18216127

申请日：2023-06-29

Applicant: Applied Materials, Inc.

Inventor： Feng Q. Liu ,  Xinke Wang ,  Liqi Wu ,  Qihao Zhu ,  Bhaskar Jyoti Bhuyan ,  Mark Saly ,  David Thampson

IPC: H01L21/768

Abstract: Embodiments of the disclosure relate to methods of selectively depositing a metal after use of a flowable polymer to protect a substrate surface within a feature. A first metal layer is deposited by physical vapor deposition (PVD). The semiconductor substrate surface is exposed to one or more monomers to form a flowable and flexible polymer film on the first metal layer within the at least one feature. The flowable polymer film forms on the first metal layer on the bottom. The one or more monomers are selected from one or more of amines with bi-functional groups, aldehydes with bi-functional groups, cyanates with bi-functional groups, ketones with bi-functional groups, and alcohols with bi-functional groups. At least a portion of the first metal layer is selectively removed from the top surface and the at least one sidewall. The flowable polymer film is removed.

公开(公告)号：US20250125195A1

公开(公告)日：2025-04-17

申请号：US18378828

申请日：2023-10-11

Applicant: Applied Materials, Inc.

Inventor： Feng Q. Liu ,  Xinke Wang ,  Liqi Wu ,  Qihao Zhu ,  Mark Saly ,  Jiang Lu ,  John Sudijono ,  David Thompson

IPC: H01L21/768 ,  H01L21/02

Abstract: Embodiments of the disclosure relate to methods using an oligomer film to protect a substrate surface. The oligomer film is formed on the substrate surface with a first feature and a second feature each having a feature depth. The first feature has a first critical dimension (CD) and the second feature has a second CD. The semiconductor substrate surface is exposed to one or more monomers to form the oligomer film, and the oligomer film forms selectively on the bottom and fills a portion of the feature depth. The oligomer film fills the feature depth to substantially the same or the same height in each of the first feature and the second feature. Methods of forming semiconductor devices using the oligomer film are also disclosed.