Abstract:
Methods of selectively forming SiCON films are described. In some embodiments, the methods comprise sequential exposure to a silicon halide, a mixture of alkanolamine and amine reactants and a deposition plasma. In some embodiments, the method further comprises pre-cleaning the target substrate to improve selectivity.
Abstract:
Apparatus and methods to control the phase of power sources for plasma process regions in a batch process chamber. A master exciter controls the phase of the power sources during the process sequence based on feedback from the match circuits of the respective plasma sources.
Abstract:
Methods for filling a substrate feature with a seamless dielectric gap fill are described. Methods comprise sequentially depositing a film with a seam, etching the the film to form a recess, and depositing a second film in the recess to form a seamless gap fill.
Abstract:
Methods for filling a substrate feature with a seamless dielectric gap fill are described. Methods comprise sequentially depositing a film with a seam, etching the the film to form a recess, and depositing a second film in the recess to form a seamless gap fill.
Abstract:
Methods of depositing an encapsulation stack without damaging underlying layers are discussed. The encapsulation stacks are highly conformal, have low etch rates, low atomic oxygen concentrations, good hermeticity and good adhesion. These films may be used to protect chalcogen materials in PCRAM devices. Some embodiments utilize a two-step process comprising a first ALD process to form a protective layer and a second plasma ALD process to form an encapsulation layer.
Abstract:
Methods and apparatus for forming a conformal SiOC film on a surface are described. A SiCN film is formed on a substrate surface and exposed to a steam annealing process to decrease the nitrogen content, increase the oxygen content and leave the carbon content about the same. The annealed film has one or more of the wet etch rate or dielectric constant of the film.
Abstract:
Methods for forming a spacer comprising depositing a film on the top, bottom and sidewalls of a feature and treating the film to change a property of the film on the top and bottom of the feature. Selectively dry etching the film from the top and bottom of the feature relative to the film on the sidewalls of the feature using a high intensity plasma.
Abstract:
Provided are methods for the deposition of films comprising SiCN. Certain methods involve exposing a substrate surface to a silicon precursor, wherein the silicon precursor is halogenated with Cl, Br or I, and the silicon precursor comprises a halogenated silane, a halogenated carbosilane, an halogenated aminosilane or a halogenated carbo-sillyl amine. Then, the substrate surface can be exposed to a nitrogen-containing plasma or a nitrogen precursor and densification plasma.