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    • 2. 发明授权
    • Method for forming inter-metal dielectrics
    • 形成金属间电介质的方法
    • US06265298B1
    • 2001-07-24
    • US09249882
    • 1999-02-16
    • Shuenn-Jeng ChenChing-Hsing HsiehChih-Ching Hsu
    • Shuenn-Jeng ChenChing-Hsing HsiehChih-Ching Hsu
    • H01L2144
    • H01L21/76829H01L21/76819H01L21/76826
    • An improved method for forming inter-metal dielectrics (IMD) over a semiconductor substrate is provided, wherein a conductive line is formed thereon. A first dielectric layer is formed over the conductive line. A second dielectric layer is formed on the first dielectric layer by a spin-on glass method. A curing treatment with an electron beam having a low energy and a high dosage is performed to cure an upper portion of the second dielectric layer so that a cured third dielectric layer is formed on the second dielectric layer. A fourth dielectric layer is formed on the cured third dielectric layer. A chemical-mechanical polishing process is performed using the cured dielectric layer as a stop layer. A cap layer is formed on the fourth dielectric layer.
    • 提供了一种用于在半导体衬底上形成金属间电介质(IMD)的改进方法,其中在其上形成导电线。 在导电线上形成第一介电层。 通过旋涂玻璃法在第一介电层上形成第二介电层。 执行具有低能量和高剂量的电子束的固化处理以固化第二介电层的上部,使得固化的第三介电层形成在第二介电层上。 在固化的第三电介质层上形成第四电介质层。 使用固化的电介质层作为停止层进行化学机械抛光工艺。 在第四电介质层上形成覆盖层。
    • 6. 发明授权
    • Method of manufacturing interconnect
    • 制造互连的方法
    • US6133143A
    • 2000-10-17
    • US340928
    • 1999-06-28
    • Jy-Hwang LinChing-Hsing HsiehYueh-Feng HoChia-Chieh Yu
    • Jy-Hwang LinChing-Hsing HsiehYueh-Feng HoChia-Chieh Yu
    • H01L21/311H01L21/60H01L21/768H01L21/4763
    • H01L21/76897H01L21/31133H01L21/76802H01L21/76814H01L21/76877
    • The invention provides a method of manufacturing a metal interconnect. A substrate having a metal line formed thereon is provided. An anti-reflection layer is formed on the metal line. A dielectric layer with a relatively low dielectric constant is formed over the substrate. A patterned photoresist layer is formed on the dielectric layer. The patterned photoresist layer has an opening exposing a portion of the dielectric layer. The portion of the dielectric layer exposed by the opening is removed to form a via hole. The patterned photoresist layer is removed by an O.sub.2 --H.sub.2 O--CF.sub.4 plasma. The pressure of the O.sub.2 --H.sub.2 O--CF.sub.4 plasma is about 800-1000 torr. A cleaning process is performed by a post-stripper rinse solution and de-ionized water without using an acetone solution. A barrier layer is formed over the substrate by chemical vapor deposition. A metal nucleation is performed for a long time by chemical vapor deposition to form metal nuclei on the barrier layer. A metal layer is formed to fill the via hole by chemical vapor deposition.
    • 本发明提供一种制造金属互连的方法。 提供其上形成有金属线的基板。 在金属线上形成防反射层。 在衬底上形成介电常数较低的电介质层。 在电介质层上形成图案化的光致抗蚀剂层。 图案化的光致抗蚀剂层具有露出电介质层的一部分的开口。 通过开口暴露的电介质层的部分被去除以形成通孔。 通过O 2 -H 2 O-CF 4等离子体去除图案化的光致抗蚀剂层。 O2-H2O-CF4等离子体的压力约为800-1000乇。 在不使用丙酮溶液的情况下,通过脱胶器冲洗溶液和去离子水进行清洁处理。 通过化学气相沉积在衬底上形成阻挡层。 通过化学气相沉积长时间进行金属成核,以在阻挡层上形成金属核。 形成金属层以通过化学气相沉积填充通孔。