摘要:
A method for forming an insulation film on a semiconductor substrate by plasma reaction includes: introducing into a reaction chamber a source gas of a silicon-containing hydrocarbon compound comprising in its molecule at least one Si—O bond and at least one bond selected from the group consisting of a Si—Si bond, Si—N bond, and Si—H bond; introducing into the reaction chamber an additive gas constituted by C, H, and optionally O; controlling a susceptor at a temperature of −50° C. to 50° C.; forming by plasma reaction an insulation film constituted by Si, O, H, and optionally N on an irregular surface of a substrate at a deposition rate of 100 nm/min or less; and heat-treating the substrate with the insulation film, thereby increasing a density of the insulation film to more than 2.1 g/cm3 as a result of the heat treatment.
摘要:
A method of forming a film having a low dielectric constant, comprises the steps of: placing a substrate between an upper electrode and a lower electrode inside a reaction chamber, introducing a silicon-containing hydrocarbon compound source gas, an additive gas, and an inert gas into a space between the upper and lower electrodes by controlling a gas flow ratio, generating a plasma by applying RF power to the space between the upper and lower electrodes in a state in which an interval between the upper electrode and the substrate is narrower in the vicinity of a center of the substrate than that in the vicinity of its periphery, and forming a film having a low dielectric constant on the substrate at a deposition rate of less than approx. 790 nm/min by controlling a flow rate of the process gas.
摘要:
A silicon-containing insulation film is formed on a substrate by plasma polymerization by introducing a reaction gas comprising (i) a source gas comprising a silicon-containing hydrocarbon compound containing at least one vinyl group (Si-vinyl compound), and (ii) an additive gas, into a reaction chamber where a substrate is placed; and applying radio-frequency power to the gas to cause plasma polymerization, thereby depositing an insulation film on the substrate.
摘要:
A siloxan polymer insulation film has a dielectric constant of 3.3 or lower and has —SiR2O— repeating structural units. The siloxan polymer has dielectric constant, high thermal stability and high humidity-resistance on a semiconductor substrate. The siloxan polymer is formed by directly vaporizing a silicon-containing hydrocarbon compound expressed by the general formula Si&agr;O&bgr;CxHy (&agr;, &bgr;, x, and y are integers) and then introducing the vaporized compound to the reaction chamber of the plasma CVD apparatus. The residence time of the source gas is lengthened by reducing the total flow of the reaction gas, in such a way as to form a siloxan polymer film having a micropore porous structure with low dielectric constant.
摘要翻译:硅氧烷聚合物绝缘膜的介电常数为3.3以下,具有-SiR2O-重复结构单元。 硅氧烷聚合物在半导体衬底上具有介电常数,高热稳定性和高耐湿性。 硅氧烷聚合物通过直接蒸发由通式SialphaObeta C x H y(α,β,x和y为整数)表示的含硅烃化合物形成,然后将蒸发的化合物引入等离子体CVD装置的反应室。 通过减少反应气体的总流量来延长源气体的停留时间,以形成具有低介电常数的微孔多孔结构的硅氧烷聚合物膜。
摘要:
A method for forming a silicone polymer insulation film having low relative dielectric constant, high thermal stability and high humidity-resistance on a semiconductor substrate is applied to a plasma CVD apparatus. The first step is vaporizing a silicon-containing hydrocarbon compound expressed by the general formula Si&agr;O&bgr;CxHy (&agr;=3, &bgr;=3 or 4, x, and y are integers) and then introducing the vaporized compound to the reaction chamber of the plasma CVD apparatus. The next step is introducing additive gas into the reaction chamber. The residence time of the material gas is lengthened by reducing the total flow of the reaction gas, in such a way as to formed a silicone polymer film having a micropore porous structure with low relative dielectric constant.
摘要:
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.
摘要:
A method for forming a silicon-containing insulation film on a substrate by plasma polymerization includes: introducing a reaction gas comprising (i) a source gas comprising a silicon-containing hydrocarbon cyclic compound containing at least one vinyl group (Si-vinyl compound), and (ii) an additive gas, into a reaction chamber where a substrate is placed; and applying radio-frequency power to the gas to cause plasma polymerization, thereby depositing an insulation film on the substrate.
摘要:
A method of forming device isolation regions on a trench-formed silicon substrate and removing residual carbon therefrom includes providing a flowable, insulative material constituted by silicon, carbon, nitrogen, hydrogen, oxygen or any combination of two or more thereof; forming a thin insulative layer, by using the flowable, insulative material, in a trench located on a semiconductor substrate wherein the flowable, insulative material forms a conformal coating in a silicon and nitrogen rich condition whereas in a carbon rich condition, the flowable, insulative material vertically grows from the bottom of the trenches; and removing the residual carbon deposits from the flowable, insulative material by multi-step curing, such as O2 thermal annealing, ozone UV curing followed by N2 thermal annealing.
摘要:
A method of forming device isolation regions on a trench-formed silicon substrate and removing residual carbon therefrom includes providing a flowable, insulative material constituted by silicon, carbon, nitrogen, hydrogen, oxygen or any combination of two or more thereof; forming a thin insulative layer, by using the flowable, insulative material, in a trench located on a semiconductor substrate wherein the flowable, insulative material forms a conformal coating in a silicon and nitrogen rich condition whereas in a carbon rich condition, the flowable, insulative material vertically grows from the bottom of the trenches; and removing the residual carbon deposits from the flowable, insulative material by multi-step curing, such as O2 thermal annealing, ozone UV curing followed by N2 thermal annealing.
摘要:
A method for forming a low-dielectric-constant thin film includes forming on a substrate placed on a susceptor a thin film having a dielectric constant of 2.7 or higher and a modulus of 5 GPa or less by plasma CVD using an organosilicon gas and an additive gas such as CnH2n+2O in the absence of oxidizing gas at a susceptor temperature of lower than 350° C.; and curing the thin film with UV irradiation, thereby decreasing the dielectric constant by at least 10% and increasing the modulus by at least 200%.
摘要翻译:形成低介电常数薄膜的方法包括使用有机硅气体和添加剂在等离子体CVD上在放置在基座上的基板上形成介电常数为2.7以上且模量为5GPa以下的薄膜 在不存在氧化气体的条件下,在低于350℃的基座温度下,例如C n H 2n + 2 O 2的气体; 并通过UV照射固化该薄膜,从而将介电常数降低至少10%,并将模量提高至少200%。