Method for depositing metals free ALD silicon nitride films using halide-based precursors

A method of depositing silicon nitride films on semiconductor substrates processed in a micro-volume of a plasma enhanced atomic layer deposition (PEALD) reaction chamber wherein a single semiconductor substrate is supported on a ceramic surface of a pedestal and process gas is introduced through ga...

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Hauptverfasser: CHANDRASEKHARAN RAMESH, MCKERROW ANDREW JOHN, KELCHNER KATHRYN MERCED, HENRI JON, SIMS JAMES S, VARADARAJAN SESHASAYEE
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MCKERROW ANDREW JOHN
KELCHNER KATHRYN MERCED
HENRI JON
SIMS JAMES S
VARADARAJAN SESHASAYEE
description A method of depositing silicon nitride films on semiconductor substrates processed in a micro-volume of a plasma enhanced atomic layer deposition (PEALD) reaction chamber wherein a single semiconductor substrate is supported on a ceramic surface of a pedestal and process gas is introduced through gas outlets in a ceramic surface of a showerhead into a reaction zone above the semiconductor substrate, includes (a) cleaning the ceramic surfaces of the pedestal and showerhead with a fluorine plasma, (b) depositing a halide-free atomic layer deposition (ALD) oxide undercoating on the ceramic surfaces, (c) depositing a precoating of ALD silicon nitride on the halide-free ALD oxide undercoating, and (d) processing a batch of semiconductor substrates by transferring each semiconductor substrate into the reaction chamber and depositing a film of ALD silicon nitride on the semiconductor substrate supported on the ceramic surface of the pedestal. 一种在等离子体增强原子层沉积(PEALD)反应室的微体积中处理的半导体衬底上沉积氮化硅膜的方法,其中单个半导体衬底被支撑在基座的陶瓷表面上并且将工艺
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ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
title Method for depositing metals free ALD silicon nitride films using halide-based precursors
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