摘要:
A method of forming a metal oxide hardmask on a template includes: providing a template constituted by a photoresist or amorphous carbon formed on a substrate; and depositing by atomic layer deposition (ALD) a metal oxide hardmask on the template constituted by a material having a formula SixM(1-x)Oy wherein M represents at least one metal element, x is less than one including zero, and y is approximately two or a stoichiometrically-determined number.
摘要:
A method of forming a low-carbon silicon-containing film by CVD on a substrate having trenches includes: introducing a silicon-containing compound having three or less hydrocarbon units in its molecule and having a boiling temperature of 35° C. to 220° C.; applying RF power to the gas; and depositing a film on a substrate having trenches wherein the substrate is controlled at a temperature such that components of the silicon-containing compound are at least partially liquidified on the substrate, thereby filling the trenches with the film.
摘要:
A method for forming a single-phase multi-element film on a substrate in a reaction zone by PEALD repeating a single deposition cycle. The single deposition cycle includes: adsorbing a precursor on the substrate in the absence of reactant and plasma; decomposing the precursor adsorbed on the substrate by an inert gas plasma; and reacting the decomposed precursor with a reactant gas plasma in the presence of the inert gas plasma. The multi-element film contains silicon and at least two non-metal elements constituting a matrix of the film, the precursor contains silicon and optionally at least one non-metal element to be incorporated in the matrix, and the reactant gas contains at least one non-metal element to be incorporated in the matrix.
摘要:
A method of forming a film on a semiconductor substrate by plasma enhanced atomic layer deposition (PEALD), includes: introducing a nitrogen- and hydrogen-containing reactive gas and a rare gas into a reaction space inside which the semiconductor substrate is placed; introducing a precursor in pulses of less than 1.0-second duration into the reaction space wherein the reactive gas and the rare gas are introduced; exiting a plasma in pulses of less than 1.0-second duration immediately after the precursor is shut off; and maintaining the reactive gas and the rare gas as a purge of less than 2.0-second duration.
摘要:
A method of forming a conformal dielectric film having Si—N bonds on a substrate having a patterned surface includes: introducing a reactant gas into a reaction space; introducing a silicon precursor in pulses of less than 5-second duration into the reaction space; applying a first RF power to the reaction space during the pulse of the silicon precursor; applying a second RF power to the reaction space during the interval of the silicon precursor pulse, wherein an average intensity of the second RF power during the interval of the silicon precursor pulse is greater than that of the first RF power during the pulse of the silicon precursor; and repeating the cycle to form a conformal dielectric film having Si—N bonds with a desired thickness on the patterned surface of the substrate.
摘要:
A container for containing a liquid material for processing a wafer includes: a container body; a divider dividing the interior of the container body and defining compartments fluid-tightly sealed off from each other except for bottom portions of the compartments; gas inlet ports for introducing gas to the respective compartments and gas outlet ports for discharging gas from the respective compartments; and a liquid level sensor provided in one of the compartments for keeping a liquid surface of a liquid material above the bottom portions when the container is in use conditions.
摘要:
A dual section module with mass flow controllers, for processing wafers, includes: dual process sections integrated together; at least one mass flow controller (MFC) each shared by the dual process sections and provided in a gas line branching into two gas lines, at a branching point, connected to the respective interiors of the dual process sections and arranged symmetrically between the dual process sections; and at least one mass flow controller (MFC) each unshared by the dual process sections and provided in a gas line connected to the interior of each dual process section.
摘要:
A method of forming stress-tuned dielectric films having Si—N bonds on a semiconductor substrate by modified plasma enhanced atomic layer deposition (PEALD), includes: introducing a nitrogen-and hydrogen-containing reactive gas and an additive gas into a reaction space inside which a semiconductor substrate is placed; applying RF power to the reaction space using a high frequency RF power source and a low frequency RF power source; and introducing a hydrogen-containing silicon precursor in pulses into the reaction space wherein a plasma is excited, thereby forming a stress-tuned dielectric film having Si—N bonds on the substrate.
摘要:
A method of forming a dielectric film having at least Si—N, Si—C, or Si—B bonds on a semiconductor substrate by atomic layer deposition (ALD), includes: supplying a precursor in a pulse to adsorb the precursor on a surface of a substrate; supplying a reactant gas in a pulse over the surface without overlapping the supply of the precursor; reacting the precursor and the reactant gas on the surface; and repeating the above steps to form a dielectric film having at least Si—N, Si—C, or Si—B bonds on the substrate. The precursor has at least one Si—C or Si—N bond, at least one hydrocarbon, and at least two halogens attached to silicon in its molecule.
摘要:
A method of forming side spacers upwardly extending from a substrate, includes: providing a template constituted by a photoresist formed on and in contact with an etch-selective layer laminated on a substrate; anisotropically etching the template in a thickness direction with an oxygen-containing plasma to remove a footing of the photoresist and an exposed portion of the underlying layer; depositing a spacer film on the template by atomic layer deposition (ALD); and forming side spacers using the spacer film by etching. The etch-selective layer has a substantially lower etch rate than that of the photoresist.