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    • 2. 发明授权
    • Process for the production of a semiconductor device having better interface adhesion between dielectric layers
    • 用于生产具有更好的介电层之间的界面粘附性的半导体器件的方法
    • US06531714B1
    • 2003-03-11
    • US09211065
    • 1998-12-14
    • Maurizio BacchettaLuca ZanottiGiuseppe Queirolo
    • Maurizio BacchettaLuca ZanottiGiuseppe Queirolo
    • H10K310312
    • H01L21/02126H01L21/02216H01L21/02274H01L21/31608H01L21/76801H01L23/5329H01L2924/0002Y10T428/24942Y10T428/265Y10T428/30H01L2924/00
    • A method for manufacturing a semiconductor device having improved adhesion at an interface between layers of dielectric material, comprising the steps of forming a first layer of dielectric material on at least one part of a structure defined in a semiconductor substrate and forming a second dielectric material layer superimposed on the least one part of the first layer. The method further includes the step of forming, in the part where the first and second layers are superimposed, an intermediate adhesion layer comprising a ternary compound of silicon, oxygen and carbon. The formation of the adhesion layer takes place at low temperature and in an atmosphere kept essentially free of oxidative substances different from those serving to provide the silicon and the carbon to the layer. Preferably the layer is formed by the plasma enhanced chemical vapour deposition technique. The ternary dielectric compound of silicon, oxygen and carbon obtained is preferably useful to aid in adhesion between layers of dielectric materials, particularly in semiconductor devices. Alternatively, in another embodiment of the invention, in a process which is more generally useful for deposition of a dielectric material layer comprising silicon, the layer is formed at low temperature by the chemical vapour deposition technique, preferably plasma enhanced, in an atmosphere kept essentially free of exogenous oxidative substances, (i.e., in which the oxidizer is contained in the molecules used to provide the species of atoms other than oxygen comprised in the layer).
    • 一种用于制造在介电材料层之间的界面处具有改善的粘合性的半导体器件的方法,包括以下步骤:在限定在半导体衬底中的结构的至少一部分上形成第一介电材料层,并形成第二介电材料层 叠加在第一层的至少一部分上。 该方法还包括在重叠第一层和第二层的部分中形成包含硅,氧和碳的三元化合物的中间粘合层的步骤。 粘合层的形成发生在低温下和基本上不含氧化物质的气氛中,这些氧化物质不同于向层中提供硅和碳的氧化物质。 优选地,该层由等离子体增强化学气相沉积技术形成。 获得的硅,氧和碳的三元介电化合物优选用于有助于电介质材料层之间的粘合,特别是在半导体器件中。 或者,在本发明的另一个实施例中,在通常可用于沉积包括硅的电介质材料层的方法中,通过化学气相沉积技术在优选等离子体增强的气氛中在低温下形成该层, 没有外源性氧化物质(即,其中氧化剂包含在用于提供层中除了氧之外的原子的物质的分子中)。