摘要:
A method of removing residual contamination including metal nitride particles from semiconductor wafer surfaces including the steps of: providing at least one semiconductor wafer with metal nitride particles adhering to the at least one semiconductor wafer surface thereto; subjecting the at least one semiconductor wafer to at least one mechanical brushing process while a cleaning solution including a carboxylic acid is supplied to at least one semiconductor wafer surface; and, subjecting the at least one semiconductor wafer to an a sonic cleaning process including the carboxylic acid cleaning solution.
摘要:
A method for spin-on wafer cleaning. The method comprises controlling spin speed and vertical water jet pressure. The vertical jet pressure and the spin speed are substantially maintained in inverse proportion. Wafer spin speed is between 50 to 1200 rpm. Vertical wafer jet pressure is between 0.05 to 100 KPa.
摘要:
A method for spin-on wafer cleaning. The method comprises controlling spin speed and vertical water jet pressure. The vertical jet pressure and the spin speed are substantially maintained in inverse proportion. Wafer spin speed is between 50 to 1200 rpm. Vertical wafer jet pressure is between 0.05 to 100 KPa.
摘要:
A method for treating a copper surface of a semiconductor device provides exposing the copper surface to a citric acid solution after the surface is formed using CMP (chemical mechanical polishing) or other methods. The citric acid treatment may take place during a cleaning operation that takes place in a wafer scrubber, or subsequent to such an operation. The citric acid treatment removes copper oxides that form on copper surfaces exposed to the environment and prevents hillock formation during subsequent high temperature operations. The copper surface is then annealed and the annealing followed by an NH3 plasma treatment which again removes any copper oxides that may be present. The NH3 plasma operation roughens exposed surfaces improving the adhesion of subsequently-formed films such as a dielectric film preferably formed in-situ with the NH3 plasma treatment. The subsequently-formed film is formed over an oxide-free, hillock-free copper surface.
摘要:
A system and method for detecting chamber leakage by measuring the reflectivity of an oxidized thin film. In a preferred embodiment, a method of detecting leaks in a chamber includes providing a first monitor workpiece, placing the first monitor workpiece in the chamber, and forming at least one film on the first monitor workpiece. The reflectivity of the least one film of the first monitor workpiece is measured, wherein the reflectivity indicates whether there are leaks in the at least one seal of the chamber. In another embodiment, the method includes providing a second monitor workpiece, placing the second monitor workpiece in the chamber, and forming at least one film on the second monitor workpiece. The reflectivity of the at least one film of the second monitor workpiece is measured, and the second monitor workpiece film reflectivity is compared to the first monitor workpiece film reflectivity.
摘要:
A method of forming a shallow trench isolation structure comprising the following steps. A substrate having an upper surface is provided. A pad oxide layer is formed upon the substrate. A nitride layer is formed over the pad oxide layer. The nitride layer having an upper surface. A trench is formed by etching the nitride layer, pad oxide layer and a portion of the substrate. The trench having a bottom and side walls. An oxide film is deposited upon the etched nitride layer surface, and the bottom and side walls of trench. The oxide film is removed from over the etched nitride layer surface, and the bottom of the trench to expose a portion of substrate within the trench. The removal of oxide film leaving oxide spacers over the trench side walls. Epitaxial silicon is selectively deposited over the exposed portion of substrate, filling the trench. A thermal oxide layer is formed over the epitaxial silicon, annealing the interface between the epitaxial silicon and the oxide spacers. The etched nitride layer and the oxide layer from over the etched substrate; and a portion of the oxide spacers extending above the surface of the etched substrate are removed, whereby the shallow trench isolation structure is formed within the trench.
摘要:
A method for reducing contaminants in a processing chamber having an inner wall by seasoning the walls. The method comprising the following steps. A first USG film is formed over the processing chamber inner wall. An FSG film is formed over the first USG film. A second USG film is formed over the FSG film. A nitrogen-containing film is formed over the second USG film wherein the first USG film, the FSG film, the second USG film and the nitrogen-containing film comprise a UFUN season film.
摘要:
A method of forming a silicon oxide, shallow trench isolation (STI) region, featuring a silicon rich, silicon oxide layer used to protect the STI region from a subsequent wet etch procedure, has been developed. The method features depositing a silicon oxide layer via PECVD procedures, without RF bias, using a high silane to oxygen ratio, resulting in a silicon rich, silicon oxide layer, located surrounding the STI region. The low etch rate of the silicon rich, silicon oxide layer, protect the silicon oxide STI region from buffered hydrofluoric wet etch procedures, used for removal of a dioxide pad layer.
摘要:
A device includes a semiconductor substrate having a front side and a backside. A photo-sensitive device is disposed at a surface of the semiconductor substrate, wherein the photo-sensitive device is configured to receive a light signal from the backside of the semiconductor substrate, and convert the light signal to an electrical signal. An amorphous-like adhesion layer is disposed on the backside of the semiconductor substrate. The amorphous-like adhesion layer includes a compound of nitrogen and a metal. A metal shielding layer is disposed on the backside of the semiconductor substrate and contacting the amorphous-like adhesion layer.
摘要:
A method for reducing contaminants in a processing chamber 10 having chamber plasma processing region components comprising the following steps. The chamber plasma processing region components are cleaned. The chamber is then seasoned as follows. A first USG layer is formed over the chamber plasma processing region components. An FSG layer is formed over the first USG layer. A second USG layer is formed over the FSG layer. Wherein the USG, FSG, and second USG layers comprise a UFU season film. A UFU season film coating the chamber plasma processing region components of a processing chamber comprises: an inner USG layer over the chamber plasma processing region components; an FSG layer over the inner USG layer; and an outer USG layer over the FSG layer.