摘要:
An electrolytic processing apparatus can planarize uniformly over an entire surface of a substrate under a low pressure without any damages to the substrate. The electrolytic processing apparatus has a substrate holder configured to hold and rotate a substrate having a metal film formed on a surface of the substrate and an electrolytic processing unit configured to perform an electrolytic process on the substrate held by the substrate holder. The electrolytic processing unit has a rotatable processing electrode, a polishing pad attached to the rotatable processing electrode, and a pressing mechanism configured to press the polishing pad against the substrate. The electrolytic processing unit also has a liquid supply mechanism configured to supply an electrolytic processing liquid between the substrate and the rotatable processing electrode, a relative movement mechanism operable to move the substrate and the rotatable processing electrode relative to each other, and a power supply configured to applying a voltage between the rotatable processing electrode and the metal film of the substrate so that the rotatable processing electrode serves as a cathode and the metal film of the substrate serves as an anode.
摘要:
A plating method can form a plated film having a uniform thickness over the entire surface, including the peripheral surface, of a substrate. The plating method includes: disposing an anode so as to face a conductive film, formed on a substrate, which serves as a cathode, and disposing an auxiliary cathode on an ring-shaped seal member for sealing a peripheral portion of the substrate; bringing the conductive film, the anode and the auxiliary cathode into contact with a plating solution; and supplying electric currents between the anode and the conductive film, and between the anode and the auxiliary cathode to carry out plating.
摘要:
A plating apparatus securely carries out a flattening plating of a substrate to form a plated film having a flat surface without using a costly mechanism, and without applying an extra plating to the substrate. The plating apparatus includes a substrate holder; a cathode section having a seal member for watertightly sealing a peripheral portion of the substrate, and a cathode electrode for supplying an electric current to the substrate; an anode disposed in a position facing the surface of the substrate; a porous member disposed between the anode and the surface of the substrate; a constant-voltage control section for controlling a voltage applied between the cathode electrode and the anode at a constant value; and a current monitor section for monitoring an electric current flowing between the cathode electrode and the anode, and feeding back a detection signal to the constant-voltage control section.
摘要:
A plating apparatus securely carries out a flattening plating of a substrate to form a plated film having a flat surface without using a costly mechanism, and without applying an extra plating to the substrate. The plating apparatus includes a substrate holder; a cathode section having a seal member for watertightly sealing a peripheral portion of the substrate, and a cathode electrode for supplying an electric current to the substrate; an anode disposed in a position facing the surface of the substrate; a porous member disposed between the anode and the surface of the substrate; a constant-voltage control section for controlling a voltage applied between the cathode electrode and the anode at a constant value; and a current monitor section for monitoring an electric current flowing between the cathode electrode and the anode, and feeding back a detection signal to the constant-voltage control section.
摘要:
An electrolytic processing method is used to remove a metal film formed on a surface of a substrate. The electrolytic processing method includes providing a feeding electrode 31 and a processing electrode 32 on a table 12, providing an insulating member 36 between the feeding electrode and the processing electrode, holding the substrate W by a substrate carrier 11, bringing the substrate into contact with the insulating member, supplying first and second electrolytic processing liquids to gaps between the feeding electrode and the substrate and between the processing electrode and the substrate, respectively, while the first and second electrolytic processing liquids are electrically isolated, applying voltage between the feeding electrode and the processing electrode, and making a relative movement between the substrate carrier and the table to electrically process the metal film.
摘要:
A plating apparatus can securely carry out a flattening plating of a substrate to form a plated film having a flat surface without using a costly mechanism, and without applying an extra plating to the substrate. The plating apparatus includes a substrate holder; a cathode section having a seal member for watertightly sealing a peripheral portion of the substrate, and a cathode electrode for supplying an electric current to the substrate; an anode disposed in a position facing the surface of the substrate; a porous member disposed between the anode and the surface of the substrate; a constant-voltage control section for controlling a voltage applied between the cathode electrode and the anode at a constant value; and a current monitor section for monitoring an electric current flowing between the cathode electrode and the anode, and feeding back a detection signal to the constant-voltage control section.
摘要:
A plating method is capable of mechanically and electrochemically preferentially depositing a plated film in fine interconnect recesses such as trenches and via holes, and depositing the plated film to a flatter surface. The plating method including: disposing a substrate having fine interconnect recesses such that a conductive layer faces an anode; disposing a porous member between the substrate and the anode; filling a plating solution between the substrate and the anode; and repeating a process of holding the conductive layer and the porous member in contact with each other and moving the conductive layer and the porous member relatively to each other, a process of passing an electric current between the conductive layer and the anode while keeping the conductive layer still with respect to the porous member, and a process of stopping the supply of the electric current between the conductive layer and the anode.
摘要:
A conductive material is electroplated onto a platable resistive metal barrier layer(s) employing a plating bath optionally comprising a super filling additive and a suppressor, and by changing the current or voltage as a function of the area of plated metal. A structure is also provided that comprises a substrate, a platable metal barrier layer(s) located on the substrate and a relatively continuous uniform electroplated layer of a conductive material located on the platable resistive metal barrier layer.
摘要:
An improved method of stabilizing wet chemical baths is disclosed. Typically such baths are used in processes for treating workpieces, for example, plating processes for plating metal onto substrates. In particular, the present invention relates to copper plating baths. More particularly, the present invention relates to the stability of copper plating baths. More particularly, the present invention relates to prevention of void formation by monitoring the accumulation of deleterious by-products in copper plating baths.
摘要:
An electrochemical process comprising: providing a 125 mm or larger semiconductor wafer in electrical contact with a conducting surface, wherein at least a portion of the semiconductor wafer is in contact with an electrolytic solution, said semiconductor wafer functioning as a first electrode; providing a second electrode in the electrolytic solution, the first and second electrode connected to opposite ends of an electric power source; and irradiating a surface of the semiconductor wafer with a light source as an electric current is applied across the first and the second electrodes. The invention is also directed to an apparatus including a light source and electrochemical components to conduct the electrochemical process.