Method for forming inorganic silazane-based dielectric film
First Claim
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1. A method of forming a dielectric film, comprising:
- introducing a gas consisting of Si, H, and N or consisting of Si H, N, and C into a reaction chamber where an object is placed;
controlling a temperature of the object at −
50°
C. to 50°
C.; and
depositing by plasma reaction an inorganic silazane-based film constituted by Si, N, and H containing inorganic silazane bonds,said method further comprising introducing into the reaction chamber an additive gas consisting of C and H or consisting of C, H, and O continuously before, simultaneously with, or continuously after the deposition of the inorganic silazane-based film on the object.
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Abstract
A method of forming an inorganic silazane-based dielectric film includes: introducing a gas constituted by Si and H and a gas constituted by N and optionally H into a reaction chamber where an object is placed; controlling a temperature of the object at −50° C. to 50° C.; and depositing by plasma reaction a film constituted by Si, N, and H containing inorganic silazane bonds.
372 Citations
14 Claims
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1. A method of forming a dielectric film, comprising:
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introducing a gas consisting of Si, H, and N or consisting of Si H, N, and C into a reaction chamber where an object is placed; controlling a temperature of the object at −
50°
C. to 50°
C.; anddepositing by plasma reaction an inorganic silazane-based film constituted by Si, N, and H containing inorganic silazane bonds, said method further comprising introducing into the reaction chamber an additive gas consisting of C and H or consisting of C, H, and O continuously before, simultaneously with, or continuously after the deposition of the inorganic silazane-based film on the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for forming an interconnect structure, comprising the steps of:
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forming a three-dimensional structure for interconnect in a substrate; and forming an insulation layer on a surface of the three-dimensional structure using a method comprising; introducing a gas consisting of Si, H, and N or consisting of Si H, N, and C into a reaction chamber where an object is placed, wherein in the gas introducing step, no oxygen-supplying gas is introduced into the reaction chamber; controlling a temperature of the object at −
50°
C. to 50°
C.; anddepositing by plasma reaction an inorganic silazane-based film constituted by Si, N, and H containing inorganic silazane bonds. - View Dependent Claims (12, 13)
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14. A method of forming a dielectric film, comprising the steps of:
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introducing a gas constituted by Si H, N and optionally C into a reaction chamber where an object is placed; controlling a temperature of the object at −
50°
C. to 50°
C.;depositing by plasma reaction an inorganic silazane-based film constituted by Si, N, and H containing inorganic silazane bonds; and adding fluidity to the inorganic silazane-based film so as to be flowable on the object, by using a hydrocarbon gas.
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Specification