摘要:
The present invention relates to a plating method and a plating apparatus which can attain embedding of copper into fine interconnection patterns with the use of a plating liquid having high throwing power and leveling properties, and which can make the film thickness of the plated film substantially equal between the interconnection region and the non-interconnection region, thereby facilitating a later CMP processing. A plating method comprising filling a plating liquid containing metal ions and an additive into a plating space formed between a substrate and an anode disposed closely to the substrate so as to face the substrate, and changing the concentration of the additive in the plating liquid filled into the plating space during a plating process.
摘要:
A substrate is plated with a metal film of uniform thickness only in a limited area thereof which is to be plated. A substrate plating apparatus has a substrate holder for holding a substrate and a plating cell for plating a portion of a surface, to be plated, of the substrate held by the substrate holder. The plating cell has an anode disposed so as to cover the portion of the surface, to be plated, of the substrate held by the substrate holder, a cathode for supplying a current to the surface, to be plated, of the substrate in such a state that the cathode is brought into contact with the substrate, a plating liquid supplying device for supplying a plating liquid between the anode and the surface, to be plated, of the substrate, and a power source for applying a voltage between the anode and the cathode.
摘要:
In a semiconductor device and a method for manufacturing the same according to the present invention, for example, an insulating film (12) is deposited on a silicon substrate (11), and a concave groove (13) is formed in the insulating film (12) in accordance with a predetermined wiring pattern. Titanium and palladium are deposited in sequence on the insulating film (12) to form a titanium film (14) and a palladium film (15), respectively. A silver film (16) is formed on the palladium film (15) by electroplating, and a groove-shaped silver wiring layer (17) is formed by polishing. The resultant structure is annealed at a temperature of about 700°C, and an intermetallic compound (18) is formed by alloying the titanium film (14) and palladium film (15) with each other. Consequently, a burying type wiring layer (19) whose resistance is lower than that of aluminum, is constituted by the silver wiring layer (17) and intermetallic compound (18).
摘要:
A high quality metallic deposit can be produced inside the micro-cavities formed on a surface of a substrate by the present invention. The method comprises immersing the substrate in a liquid held in a processing chamber; evacuating the processing chamber so as to remove residual bubbles from the micro-cavities and to degas the liquid within the micro-cavities; and subjecting the liquid to boiling in at least those regions adjacent to the substrate.
摘要:
The present semiconductor element comprises a semiconductor substrate (1), a wiring pad (2) formed thereon, a layer of barrier metal formed thereon, an intermetallic compound Ag 3 Sn (7) formed thereon, and a protruded electrode consisting of low-melting metal (9) formed thereon. In addition, a fabricating method of a semiconductor element comprises the steps of forming a wiring pad on a semiconductor substrate, forming a layer of barrier metal thereon, forming a metallic layer containing Ag (11) thereon, forming a layer of low-melting metal containing Sn thereon, and melting the layer of low-melting metal containing Sn to form a protruded electrode and simultaneously to form an intermetallic compound Ag 3 Sn at an interface between the metallic layer containing Ag and the layer of low-melting metal containing Sn. Thus, with Pb-free solder, a semiconductor element of high reliability can be obtained.
摘要:
A substrate processing apparatus fills a metal such as copper or the like in fine interconnection patterns or trenches defined in a semiconductor substrate. The substrate processing apparatus has a loading/unloading unit for placing a substrate cassette to load and unload a substrate, a substrate treating unit for treating a substrate, and a transfer robot for transferring a substrate between the loading/unloading unit and the substrate treating unit. The loading/unloading unit, the substrate treating unit, and the transfer robot are installed in a single facility. The loading/unloading unit has a rotary table which is horizontally rotatable for positioning the substrate cassette in a position to detect the substrate cassette placed in the loading/unloading unit and to remove the substrate from the substrate cassette with the transfer robot.
摘要:
A substrate processing apparatus fills a metal such as copper or the like in fine interconnection patterns or trenches defined in a semiconductor substrate. The substrate processing apparatus has a loading/unloading unit for placing a substrate cassette to load and unload a substrate, a substrate treating unit for treating a substrate, and a transfer robot for transferring a substrate between the loading/unloading unit and the substrate treating unit. The loading/unloading unit, the substrate treating unit, and the transfer robot are installed in a single facility. The loading/unloading unit has a rotary table which is horizontally rotatable for positioning the substrate cassette in a position to detect the substrate cassette placed in the loading/unloading unit and to remove the substrate from the substrate cassette with the transfer robot.
摘要:
A method and apparatus can provide surface protection of substrates such as semiconductor wafers while they are being transported from one unit process to another unit process. The method comprises coating at least a part of a surface of the substrate with a coagulated film such as an ice film.
摘要:
There is provided a method for forming interconnects by filling a conductive metal into fine recesses formed in the surface of a substrate, comprising: forming an underlying film on the surface of the substrate, the film comprising at least two kinds of metals; and conducting wet plating of the conductive metal onto the surface of the underlying film. The method can form a defect-free, completely embedded interconnects of a conductive material in recesses, even when the recesses are of a high aspect ratio.
摘要:
The present semiconductor element comprises a semiconductor substrate, a wiring pad formed thereon, a layer of barrier metal formed thereon, an intermetallic compound Ag 3 Sn formed thereon, and a protruded electrode consisting of low-melting metal formed thereon. In addition, a fabricating method of a semiconductor element comprises the steps of forming a wiring pad on a semiconductor substrate, forming a layer of barrier metal thereon, forming a metallic layer containing Ag thereon, forming a layer of low-melting metal containing Sn thereon, and melting the layer of low-melting metal containing Sn to form a protruded electrode and simultaneously to form an intermetallic compound Ag 3 Sn at an interface between the metallic layer containing Ag and the layer of low-melting metal containing Sn. Thus, with Pb-free solder, a semiconductor element of high reliability can be obtained.