摘要:
PROBLEM TO BE SOLVED: To provide technology for suppressing the oxidation of a copper film and the raise of wiring resistance in forming a barrier film and the copper film along the recessed part of an insulating film by utilizing an alloy film of copper and additional metal, and then embedding the copper wiring. SOLUTION: The manufacturing method of the semiconductor device is carried out so as to comprise processes of: forming the alloy film, produced by adding the additional metal into copper, along the wall surface of the recessed part on an interlayer insulating film on the surface of a substrate; heating the substrate in an atmosphere containing organic acid, organic anhydride or the ketones in order to form the barrier layer, consisting of the compound of constituting elements of the additional metal and the interlayer insulating film, and deposit excessive additional metal on the surface of the alloy film; and embedding the copper into the recessed part. Since the organic acid anhydride and ketones have reducibility to copper, the barrier layer consisting of the compound of the additional metal and the constituting element in the insulating film can be formed while suppressing the oxidation of copper contained in the alloy film. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To easily form an alloy layer including an additive metal having a concentration gradient in a thickness direction by sputtering in one processing chamber. SOLUTION: The method for forming a sputtered film comprises a first film forming step of forming a first alloy film on an object to be processed by a metal target particle sputtered by a plasma generated by supplying a gas for generating the plasma into the processing chamber having a metal target comprising an alloy including the additive metal and a main metal, and supplying an electric power to the gas; and a second film forming step of depositing a second alloy film having a concentration of the additive metal diffrent from that of the first alloy film on the first alloy film by a sputtered particle of the metal target by differenciating at least one of a pressure and an electric power in the processing chamber to generate the plasma. This can form the film with its concentration of the additive metal different from that of the main metal in the thickness direction. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a substrate treatment method, capable of reducing the possibility of time degradation or alteration of an interlayer insulating film even in a substrate using Low-k material as the interlayer insulating film. SOLUTION: The substrate treatment method for treating a substrate including a dielectric layer having a dielectric constant lower than that of a silicon oxide film includes: a dehydration step of heating the dielectric layer in an atmosphere of an inert gas to perform dehydration condensation treatment thereon; and annealing step of annealing the substrate in an atmosphere of a gas including at least hydrogen atoms. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a laminated film and a reforming method thereof capable of improving the throughput of the reforming process of the laminated film and preventing the degradation of low permittivity, further capable of improving the interlayer adhesion in the laminated film to be able to greatly suppress the interlayer peel, and capable of improving the mechanical strength of an interlayer insulating film. SOLUTION: The manufacturing method of the laminated film irradiates a first and a second SOD films 51, 52 which are laminated together with an electron beam B and reforms these SOD films 51, 52 simultaneously. COPYRIGHT: (C)2005,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To increase the resistance with respect to various chemicals and plasma used in semiconductor manufacturing processes by improving the adhesiveness of a low-density film having low permittivity. SOLUTION: The surface of the low-density film, having a low permittivity, is plasma-treated to form a very fine surface modified layer.
摘要:
PROBLEM TO BE SOLVED: To provide a semiconductor device which reduces a wiring delay and has high wiring reliability and to provide a method of manufacturing the same. SOLUTION: A plurality of interconnect lines 12a-12f with different pitches P1-P3 are formed on an underlying insulating layer 10. Subsequently, between adjacent interconnect lines with a small pitch whose wiring delay is expected to exceed a predetermined value in the wiring design, an adhesion preventing layer for preventing adhesion with an interlayer dielectric 16 formed on these interconnect lines is formed. In a formed semiconductor device 18, a gap with a low dielectric constant is formed between interconnect lines with a small wiring pitch (portion C) and an insulating film is selectively embedded between interconnect lines with a large wiring pitch (portions A and B).