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    • 5. 发明授权
    • Method of fabricating MIM capacitor with the encapsulated metal structure serving as the lower plate
    • 制造具有封装金属结构的MIM电容器作为下板的方法
    • US06825075B2
    • 2004-11-30
    • US10757214
    • 2004-01-14
    • Kevin S. PetrarcaDonald CanaperiMahadevaiyer KrishnanKenneth Jay SteinRichard P. Volant
    • Kevin S. PetrarcaDonald CanaperiMahadevaiyer KrishnanKenneth Jay SteinRichard P. Volant
    • H01L218242
    • H01L21/76849H01L21/76834H01L21/7684H01L28/60
    • A method is described for fabricating an encapsulated metal structure in a feature formed in a substrate. The sidewalls and bottom of the feature are covered by a barrier layer and the feature is filled with metal, preferably by electroplating. A recess is formed in the metal, and an additional barrier layer is deposited, covering the top surface of the metal and contacting the first barrier layer. The additional barrier layer is planarized, preferably by chemical-mechanical polishing. The method may be used in fabricating a MIM capacitor, with the encapsulated metal structure serving as the lower plate of the capacitor. A second substrate layer is deposited on the top surface of the substrate, with an opening overlying the encapsulated metal structure. A dielectric layer is deposited in the opening, covering the encapsulated metal structure at the bottom thereof. An additional layer, serving as the upper plate of the capacitor, is deposited to cover the dielectric layer and to fill the opening. The dielectric layer and the additional layer are planarized, preferably by CMP.
    • 描述了一种在衬底中形成的特征中制造封装金属结构的方法。 特征的侧壁和底部被阻挡层覆盖,并且该特征被金属填充,优选地通过电镀。 在金属中形成凹部,并且沉积附加的阻挡层,覆盖金属的顶表面并与第一阻挡层接触。 优选通过化学机械抛光将附加阻挡层平坦化。 该方法可用于制造MIM电容器,其中封装的金属结构用作电容器的下板。 第二衬底层沉积在衬底的顶表面上,具有覆盖封装的金属结构的开口。 介电层沉积在开口中,覆盖其底部的封装金属结构。 作为电容器的上板的附加层被沉积以覆盖电介质层并填充开口。 介电层和附加层优选通过CMP平坦化。
    • 6. 发明授权
    • Encapsulated metal structures for semiconductor devices and MIM capacitors including the same
    • 用于半导体器件和包括其的MIM电容器的封装金属结构
    • US06756624B2
    • 2004-06-29
    • US10409010
    • 2003-04-07
    • Kevin S. PetrarcaDonald CanaperiMahadevaiyer KrishnanKenneth Jay SteinRichard P. Volant
    • Kevin S. PetrarcaDonald CanaperiMahadevaiyer KrishnanKenneth Jay SteinRichard P. Volant
    • H01L27108
    • H01L21/76849H01L21/76834H01L21/7684H01L28/60
    • A method is described for fabricating an encapsulated metal structure in a feature formed in a substrate. The sidewalls and bottom of the feature are covered by a barrier layer and the feature is filled with metal, preferably by electroplating. A recess is formed in the metal, and an additional barrier layer is deposited, covering the top surface of the metal and contacting the first barrier layer. The additional barrier layer is planarized, preferably by chemical-mechanical polishing. The method may be used in fabricating a MIM capacitor, with the encapsulated metal structure serving as the lower plate of the capacitor. A second substrate layer is deposited on the top surface of the substrate, with an opening overlying the encapsulated metal structure. A dielectric layer is deposited in the opening, covering the encapsulated metal structure at the bottom thereof. An additional layer, serving as the upper plate of the capacitor, is deposited to cover the dielectric layer and to fill the opening. The dielectric layer and the additional layer are planarized, preferably by CMP.
    • 描述了一种在衬底中形成的特征中制造封装金属结构的方法。 特征的侧壁和底部被阻挡层覆盖,并且该特征被金属填充,优选地通过电镀。 在金属中形成凹部,并且沉积附加的阻挡层,覆盖金属的顶表面并与第一阻挡层接触。 优选通过化学机械抛光将附加阻挡层平坦化。 该方法可用于制造MIM电容器,其中封装的金属结构用作电容器的下板。 第二衬底层沉积在衬底的顶表面上,具有覆盖封装的金属结构的开口。 介电层沉积在开口中,覆盖其底部的封装金属结构。 作为电容器的上板的附加层被沉积以覆盖电介质层并填充开口。 介电层和附加层优选通过CMP平坦化。
    • 8. 发明授权
    • Encapsulated metal structures for semiconductor devices and MIM capacitors including the same
    • 用于半导体器件和包括其的MIM电容器的封装金属结构
    • US06368953B1
    • 2002-04-09
    • US09567466
    • 2000-05-09
    • Kevin S. PetrarcaDonald CanaperiMahadevaiyer KrishnanKenneth Jay SteinRichard P. Volant
    • Kevin S. PetrarcaDonald CanaperiMahadevaiyer KrishnanKenneth Jay SteinRichard P. Volant
    • H01L214763
    • H01L21/76849H01L21/76834H01L21/7684H01L28/60
    • A method is described for fabricating an encapsulated metal structure in a feature formed in a substrate. The sidewalls and bottom of the feature are covered by a barrier layer and the feature is filled with metal, preferably by electroplating. A recess is formed in the metal, and an additional barrier layer is deposited, covering the top surface of the metal and contacting the first barrier layer. The additional barrier layer is planarized, preferably by chemical-mechanical polishing. The method may be used in fabricating a MIM capacitor, with the encapsulated metal structure serving as the lower plate of the capacitor. A second substrate layer is deposited on the top surface of the substrate, with an opening overlying the encapsulated metal structure. A dielectric layer is deposited in the opening, covering the encapsulated metal structure at the bottom thereof. An additional layer, serving as the upper plate of the capacitor, is deposited to cover the dielectric layer and to fill the opening. The dielectric layer and the additional layer are planarized, preferably by CMP.
    • 描述了一种在衬底中形成的特征中制造封装金属结构的方法。 特征的侧壁和底部被阻挡层覆盖,并且该特征被金属填充,优选地通过电镀。 在金属中形成凹部,并且沉积附加的阻挡层,覆盖金属的顶表面并与第一阻挡层接触。 优选通过化学机械抛光将附加阻挡层平坦化。 该方法可用于制造MIM电容器,其中封装的金属结构用作电容器的下板。 第二衬底层沉积在衬底的顶表面上,具有覆盖封装的金属结构的开口。 介电层沉积在开口中,覆盖其底部的封装金属结构。 作为电容器的上板的附加层被沉积以覆盖电介质层并填充开口。 介电层和附加层优选通过CMP平坦化。