Thermal CVD process for depositing a low dielectric constant carbon-doped silicon oxide film
    4.
    发明授权
    Thermal CVD process for depositing a low dielectric constant carbon-doped silicon oxide film 失效
    用于沉积低介电常数碳掺杂氧化硅膜的热CVD工艺

    公开(公告)号:US06602806B1

    公开(公告)日:2003-08-05

    申请号:US09632668

    申请日:2000-08-07

    IPC分类号: H01L2131

    摘要: A method for providing a dielectric film having a low dielectric constant. The deposited film is particularly useful as an intermetal or premetal dielectric layer in an integrated circuit. The low dielectric constant film is a carbon-doped silicon oxide layer deposited from a thermal, as opposed to plasma, CVD process. The layer is deposited from a process gas of ozone and an organosilane precursor having at least one silicon-carbon (Si—C) bond. During the deposition process the wafer is heated to a temperature less than 250° C. and preferably to a temperature between 100-200° C. Enhancements to the process include adding Boron and/or Phosphorus dopants, two step deposition, and capping the post cured layer.

    摘要翻译: 一种提供具有低介电常数的电介质膜的方法。 沉积膜特别可用作集成电路中的金属间或前金属介电层。 低介电常数膜是从与CVD等离子体相反的CVD法沉积的碳掺杂氧化硅层。 该层由臭氧的工艺气体和具有至少一个硅 - 碳(Si-C)键的有机硅烷前体沉积。 在沉积过程中,将晶片加热到低于250℃的温度,优选加热到100-200℃之间的温度。对该方法的增强包括加入硼和/或磷掺杂剂,两步沉积和封盖柱 固化层。

    Methods and apparatus to enhance properties of Si-O-C low K films
    6.
    发明授权
    Methods and apparatus to enhance properties of Si-O-C low K films 失效
    提高Si-O-C低K膜性能的方法和装置

    公开(公告)号:US06635575B1

    公开(公告)日:2003-10-21

    申请号:US09633196

    申请日:2000-08-07

    IPC分类号: H01L21302

    摘要: A method for providing a dielectric film having enhanced adhesion and stability. Pre-deposition, post deposition and post cure treatments enhance adhesion of the dielectric film to an underlying substrate and overlying cap layer. The enhanced film is particularly useful as an intermetal or premetal dielectric layer in an integrated circuit. A pre-deposition treatment process with atomic hydrogen enhances film adhesion by reducing weakly bound oxides on the surface of the substrate. A post-deposition densification process in a reducing atmosphere enhances stability if the film is to be cured ex-situ. In a preferred embodiment, the layer a low dielectric constant film deposited from a process gas of ozone and an organosilane precursor having at least one silicon-carbon (Si—C) bond.

    摘要翻译: 一种用于提供具有增强的粘合性和稳定性的电介质膜的方法。 预沉积,后沉积和后固化处理增强了介电膜对底层基底和覆盖层的粘附。 增强膜在集成电路中作为金属间或前金属介质层是特别有用的。 具有原子氢的预沉积处理方法通过减少衬底表面上的弱结合氧化物来增强膜的粘附性。 在还原气氛中的沉积后致密化过程如果要非原位固化,则可提高稳定性。 在优选实施方案中,该层由臭氧的工艺气体沉积的低介电常数膜和具有至少一个硅 - 碳(Si-C)键的有机硅烷前体。