METHODS OF FORMING LOW RESISTIVITY TITANIUM NITRIDE THIN FILM IN HORIZONTAL VIAS AND RELATED DEVICES

A method of forming a conformal layer including TiN in a via includes introducing a precursor into a reaction chamber according to a first exposure schedule. The precursor includes non-halogenated metal-organic titanium. The first exposure schedule indicates precursor exposure periods. Each precurso...

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Hauptverfasser: Moinpour, Mansour, Yun, SeongUk, Kuo, Cheng-Hsuan, Kanjolia, Ravindra, Kummel, Andrew, Moser, Daniel
Format: Patent
Sprache:eng
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Zusammenfassung:A method of forming a conformal layer including TiN in a via includes introducing a precursor into a reaction chamber according to a first exposure schedule. The precursor includes non-halogenated metal-organic titanium. The first exposure schedule indicates precursor exposure periods. Each precursor exposure period is associated with a particular duration of time and a particular duty cycle over which to introduce the precursor during the particular duration of time. The method includes introducing a co-reactant into the reaction chamber according to a second exposure schedule. The co-reactant includes nitrogen. The second exposure schedule indicates co-reactant exposure periods. Each co-reactant exposure period is associated with a particular duration of time and a particular duty cycle over which to introduce the co-reactant during the particular duration of time. The method includes providing the conformal layer including TiN in the via based on said introducing the precursor and the co-reactant.