Invention Grant
US09076646B2 Plasma enhanced atomic layer deposition with pulsed plasma exposure
有权
等离子体增强原子层沉积与脉冲等离子体暴露
- Patent Title: Plasma enhanced atomic layer deposition with pulsed plasma exposure
- Patent Title (中): 等离子体增强原子层沉积与脉冲等离子体暴露
-
Application No.: US14144107Application Date: 2013-12-30
-
Publication No.: US09076646B2Publication Date: 2015-07-07
- Inventor: James S. Sims , Jon Henri , Kathryn M. Kelchner , Sathish Babu S. V. Janjam , Shane Tang
- Applicant: Lam Research Corporation
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Main IPC: H01L21/02
- IPC: H01L21/02 ; C23C16/515 ; C23C16/04 ; C23C16/34 ; C23C16/40 ; C23C16/455 ; C23C16/56 ; H01L21/67 ; H01L21/762 ; H01L21/768 ; H01L21/311

Abstract:
The embodiments herein focus on plasma enhanced atomic layer deposition (PEALD) processes using pulsed plasmas. While conventional PEALD processes use continuous wave plasmas during the plasma exposure/conversion operation, the embodiments herein utilize a pulsed plasma during this operation to achieve a film with high quality sidewalls. Because conventional PEALD techniques result in films having high quality at the bottom and top of a feature, but low quality on the sidewalls, this increased sidewall quality in the disclosed methods corresponds to a film that is overall more uniform in quality compared to that achieved with conventional continuous wave plasma techniques.
Public/Granted literature
- US20140113457A1 PLASMA ENHANCED ATOMIC LAYER DEPOSITION WITH PULSED PLASMA EXPOSURE Public/Granted day:2014-04-24
Information query
IPC分类: