Method of forming contact
    1.
    发明授权
    Method of forming contact 有权
    形成接触的方法

    公开(公告)号:US07645712B2

    公开(公告)日:2010-01-12

    申请号:US12345670

    申请日:2008-12-30

    IPC分类号: H01L21/469 H01L21/338

    摘要: A substrate having at least two metal oxide semiconductor devices of a same conductive type and a gap formed between the two devices is provided. A first stress layer is formed over the substrate to cover the metal-oxide semiconductor devices and the substrate, filling the gap. An etching back process is then performed to remove a portion of the stress material layer inside the gap. A second stress layer and a dielectric layer are sequentially formed on the first stress layer. The first stress layer and the second stress layer provide a same type of stress. A portion of the second stress layer is removed to form a contact opening. A second conductive layer is filled into the contact opening to form a contact.

    摘要翻译: 提供了具有至少两个相同导电类型的金属氧化物半导体器件和在两个器件之间形成的间隙的衬底。 第一应力层形成在衬底上以覆盖金属氧化物半导体器件和衬底,填补间隙。 然后执行回蚀处理以去除间隙内部的应力材料层的一部分。 第一应力层和电介质层依次形成在第一应力层上。 第一应力层和第二应力层提供相同类型的应力。 去除第二应力层的一部分以形成接触开口。 将第二导电层填充到接触开口中以形成接触。

    METHOD OF FORMING CONTACT
    5.
    发明申请
    METHOD OF FORMING CONTACT 有权
    形成联系方法

    公开(公告)号:US20070117375A1

    公开(公告)日:2007-05-24

    申请号:US11164480

    申请日:2005-11-24

    IPC分类号: H01L21/4763

    摘要: A method of forming a contact is provided. A substrate having at least two conductive devices is provided. A spacing is located between the two conductive devices. A first dielectric layer is formed over the substrate to cover the two conductive devices and the spacing. A seam is formed in the first dielectric layer within the spacing. Then, a portion of the first dielectric layer is removed to form an opening so that the width of the seam is expanded. A second dielectric layer is formed over the first dielectric layer to fill the opening. A portion of the second dielectric layer and a portion of the first dielectric layer within the spacing are removed until a portion of the surface of the substrate is exposed and a contact opening is formed in the location for forming the contact. Finally, conductive material is deposited to fill the contact opening.

    摘要翻译: 提供了形成接触的方法。 提供具有至少两个导电装置的基板。 间隔位于两个导电器件之间。 第一电介质层形成在衬底上以覆盖两个导电器件和间隔。 在间隔内的第一电介质层中形成接缝。 然后,去除第一电介质层的一部分以形成开口,使得接缝的宽度扩大。 在第一介电层上方形成第二电介质层以填充开口。 去除第二电介质层的一部分和间隔内的第一电介质层的一部分,直到基板表面的一部分露出,并且在用于形成接触的位置形成接触开口。 最后,沉积导电材料以填充接触开口。

    METHOD FOR INCREASING FILM STRESS AND METHOD FOR FORMING HIGH STRESS LAYER
    6.
    发明申请
    METHOD FOR INCREASING FILM STRESS AND METHOD FOR FORMING HIGH STRESS LAYER 审中-公开
    增加膜应力的方法和形成高应力层的方法

    公开(公告)号:US20080160786A1

    公开(公告)日:2008-07-03

    申请号:US11616286

    申请日:2006-12-27

    IPC分类号: H01L21/469

    摘要: A method for forming a high stress layer is provided. According to the method, a substrate is put into a reactor of a PECVD machine and a reaction gas is added into the reactor. Then, an assistant reaction gas which has the molecular weight greater than or equal to the molecular weight of nitrogen gas is added into the reactor. Next, a carrier gas which has the molecular weight smaller than the molecular weight of nitrogen gas is added into the reactor to increase the bombarding efficiency in film deposition. Thereby, the high stress layer is formed on the substrate.

    摘要翻译: 提供了形成高应力层的方法。 根据该方法,将基板放入PECVD机的反应器中,并将反应气体加入到反应器中。 然后,将分子量大于等于氮分子量的辅助反应气体加入到反应器中。 接下来,将具有小于氮分子量的分子量的载气加入到反应器中,以提高膜沉积中的轰击效率。 由此,在基板上形成高应力层。