Apparatus and methods for low K dielectric layers
    9.
    发明授权
    Apparatus and methods for low K dielectric layers 有权
    低K电介质层的装置和方法

    公开(公告)号:US08889567B2

    公开(公告)日:2014-11-18

    申请号:US13234946

    申请日:2011-09-16

    摘要: Methods and apparatus for a low k dielectric layer of porous SiCOH. A method includes placing a semiconductor substrate into a vapor deposition chamber; introducing reactive gases into the vapor deposition chamber to form a dielectric film comprising SiCOH and a decomposable porogen; depositing the dielectric film to have a ratio of Si—CH3 to SiOnetwork bonds of less than or equal to 0.25; and performing a cure for a cure time to remove substantially all of the porogen from the dielectric film. In one embodiment the porogen comprises a cyclic hydrocarbon. The porogen may be UV curable. In embodiments, different lowered Si—CH3 to SiOnetwork ratios for the deposition of the dielectric film are disclosed. An apparatus of a semiconductor device including the low k dielectric layers is disclosed.

    摘要翻译: 多孔SiCOH的低k电介质层的方法和装置。 一种方法包括将半导体衬底放置在气相沉积室中; 将反应性气体引入气相沉积室以形成包含SiCOH和可分解致孔剂的电介质膜; 沉积介电膜以使Si-CH3与SiO网络键的比例小于或等于0.25; 并进行固化固化时间以从电介质膜基本上除去所有致孔剂。 在一个实施方案中,致孔剂包含环状烃。 造孔剂可以是UV固化的。 在实施例中,公开了用于沉积电介质膜的不同降低的Si-CH 3与SiO网络比。 公开了一种包括低k电介质层的半导体器件的装置。