Invention Grant
- Patent Title: Self-aligned EPI contact flow
-
Application No.: US15811188Application Date: 2017-11-13
-
Publication No.: US10269647B2Publication Date: 2019-04-23
- Inventor: Ying Zhang , Schubert S. Chu , Xinyu Bao , Regina Germanie Freed , Hua Chung
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: APPLIED MATERIALS, INC.
- Current Assignee: APPLIED MATERIALS, INC.
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson + Sheridan LLP
- Main IPC: H01L21/8234
- IPC: H01L21/8234 ; H01L29/417 ; H01L29/66 ; H01L29/78 ; H01L21/8238

Abstract:
Methods for forming semiconductor devices, such as FinFETs, are provided. In one embodiment, a method for forming a FinFET device includes removing a portion of each fin of a plurality of fins, and a remaining portion of each fin is recessed from a dielectric surface. The method further includes forming a feature on the remaining portion of each fin, filling gaps formed between adjacent features with a dielectric material, removing the features, and forming a fill material on the remaining portion of each fin. Because the shape of the features is controlled, the shape of the fill material can be controlled.
Public/Granted literature
- US20180211881A1 SELF-ALIGNED EPI CONTACT FLOW Public/Granted day:2018-07-26
Information query
IPC分类: