Plasma film-forming method and plasma film-forming apparatus
    2.
    发明申请
    Plasma film-forming method and plasma film-forming apparatus 审中-公开
    等离子体成膜法和等离子体成膜装置

    公开(公告)号:US20060251828A1

    公开(公告)日:2006-11-09

    申请号:US10549859

    申请日:2004-03-24

    IPC分类号: H05H1/24 C23C16/00

    摘要: A plasma-assisted deposition system for carrying out a plasma-assisted deposition method has a processing vessel defining a vacuum chamber and having an open upper end, a dielectric member covering the open upper end of the processing vessel, and a flat antenna member placed on the upper surface of the dielectric member. A coaxial waveguide has one end connected to the upper surface of the flat antenna member and the other end connected to a microwave generator. The flat antenna member is provided with many slots of a length corresponding to half the wavelength of a microwave arranged on concentric circles. For example, a circularly polarized microwave is radiated from the slots into a processing space to produce a source gas plasma. Electron temperature in the plasma in terms of mean square velocity is 3 eV or below and the electron density in the plasma is 5×1011 electrons per cubic centimeter or above. The plasma is used for depositing a fluorine-containing carbon film. Preferably, the process pressure is 19.95 Pa or below. Under such process conditions for depositing a fluorine-containing carbon film by using the plasma, the source gas, such as C5F8 gas, is decomposed properly to form a structure of long CF chains. A interlayer insulation film thus formed has a small relative dielectric constant and permits only a low leakage current.

    摘要翻译: 用于执行等离子体辅助沉积方法的等离子体辅助沉积系统具有限定真空室并具有敞开的上端的处理容器,覆盖处理容器的敞开的上端的电介质构件和放置在 电介质构件的上表面。 同轴波导的一端连接到平坦天线构件的上表面,另一端连接到微波发生器。 扁平天线构件设置有多个长度对应于布置在同心圆上的微波的一半波长的槽。 例如,圆形极化微波从狭缝辐射到处理空间中以产生源气体等离子体。 等离子体中的平均电子速度的电子温度为3eV以下,等离子体中的电子密度为每立方厘米以上5×10 11电子。 等离子体用于沉积含氟碳膜。 优选地,工艺压力为19.95Pa或更低。 在通过使用等离子体沉积含氟碳膜的这种工艺条件下,诸如C 5 F 8气体的源气体被适当地分解以形成结构 的长CF链。 这样形成的层间绝缘膜具有小的相对介电常数,并且仅允许低的漏电流。

    Plasma processing method and plasma processing apparatus
    6.
    发明申请
    Plasma processing method and plasma processing apparatus 失效
    等离子体处理方法和等离子体处理装置

    公开(公告)号:US20070077737A1

    公开(公告)日:2007-04-05

    申请号:US10580036

    申请日:2004-11-19

    IPC分类号: H01L21/26 H01L21/42 H05H1/24

    摘要: A microwave is radiated into a processing chamber (1) from a planar antenna member of an antenna (7) through a dielectric plate (6). With this, a C5F8 gas supplied into the processing chamber (1) from a gas supply member (3) is changed (activated) into a plasma so as to form a fluorine-containing carbon film of a certain thickness on a semiconductor wafer (W). Each time a film forming process of forming a film on one wafer is carried out, a cleaning process and a pre-coating process are carried out. In the cleaning process, the inside of the processing chamber is cleaned with a plasma of an oxygen gas and a hydrogen gas. In the pre-coating process, the C5F8 gas is changed into a plasma, and a pre-coat film of fluorine-containing carbon thinner than the fluorine-containing carbon film formed in the film forming process is formed.

    摘要翻译: 通过电介质板(6)将微波从天线(7)的平面天线部件辐射到处理室(1)中。 由此,从气体供给构件(3)供给到处理室(1)中的C 5 C 8 C 8气体被变更(激活)为等离子体,从而 在半导体晶片(W)上形成一定厚度的含氟碳膜。 每次进行在一个晶片上形成膜的成膜工艺时,进行清洗处理和预涂工序。 在清洁过程中,用氧气和氢气的等离子体清洁处理室的内部。 在预涂布过程中,将C 5 F 8 N气体变成等离子体,并且含氟碳的预涂膜比含氟 形成在成膜工艺中形成的碳膜。

    Plasma processing method and plasma processing apparatus
    7.
    发明授权
    Plasma processing method and plasma processing apparatus 失效
    等离子体处理方法和等离子体处理装置

    公开(公告)号:US08017197B2

    公开(公告)日:2011-09-13

    申请号:US10580036

    申请日:2004-11-19

    摘要: A microwave is radiated into a processing chamber (1) from a planar antenna member of an antenna (7) through a dielectric plate (6). With this, a C5F8 gas supplied into the processing chamber (1) from a gas supply member (3) is changed (activated) into a plasma so as to form a fluorine-containing carbon film of a certain thickness on a semiconductor wafer (W). Each time a film forming process of forming a film on one wafer is carried out, a cleaning process and a pre-coating process are carried out. In the cleaning process, the inside of the processing chamber is cleaned with a plasma of an oxygen gas and a hydrogen gas. In the pre-coating process, the C5F8 gas is changed into a plasma, and a pre-coat film of fluorine-containing carbon thinner than the fluorine-containing carbon film formed in the film forming process is formed.

    摘要翻译: 通过电介质板(6)将微波从天线(7)的平面天线部件辐射到处理室(1)中。 由此,将从气体供给部件(3)供给到处理室(1)的C5F8气体变更(激活)为等离子体,以在半导体晶片(W)上形成一定厚度的含氟碳膜 )。 每次进行在一个晶片上形成膜的成膜工艺时,进行清洗处理和预涂工序。 在清洁过程中,用氧气和氢气的等离子体清洁处理室的内部。 在预涂工序中,将C5F8气体变成等离子体,形成比成膜工序中形成的含氟碳膜薄的含氟碳的预涂膜。