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    • 4. 发明申请
    • DIELECTRIC BARRIER LAYER FOR INCREASING ELECTROMIGRATION LIFETIMES IN COPPER INTERCONNECT STRUCTURES
    • 用于增加铜互连结构中电磁寿命的电介质障碍层
    • US20070190784A1
    • 2007-08-16
    • US11736402
    • 2007-04-17
    • Hao CuiPeter BurkeWilbur Catabay
    • Hao CuiPeter BurkeWilbur Catabay
    • H01L21/44
    • H01L21/76832H01L21/76825H01L21/76826H01L21/76834H01L21/76883
    • Embodiments of the invention include a copper interconnect structure having increased electromigration lifetime. Such structures can include a semiconductor substrate having a copper layer formed thereon. A dielectric barrier stack is formed on the copper layer. The dielectric barrier stack includes a first portion formed adjacent to the copper layer and a second portion formed on the first portion, the first portion having improved adhesion to copper relative to the second portion and both portions are formed having resistance to copper diffusion. The invention also includes several embodiments for constructing such structures. Adhesion of the dielectric barrier stack to copper can be increased by plasma treating or ion implanting selected portions of the dielectric barrier stack with adhesion enhancing materials to increase the concentration of such materials in the stack.
    • 本发明的实施例包括具有增加的电迁移寿命的铜互连结构。 这种结构可以包括其上形成有铜层的半导体衬底。 在铜层上形成介电阻挡层叠体。 电介质势垒叠层包括邻近铜层形成的第一部分和形成在第一部分上的第二部分,第一部分具有相对于第二部分具有改进的铜的粘合性,并且两个部分形成为具有耐铜扩散性。 本发明还包括用于构造这种结构的几个实施例。 可以通过等离子体处理或离子注入电介质阻挡层的选定部分与粘合增强材料来增加电介质阻挡层与铜的附着,以增加堆叠中这种材料的浓度。
    • 7. 发明申请
    • Self-aligned cell integration scheme
    • 自对准单元集成方案
    • US20060281256A1
    • 2006-12-14
    • US11312849
    • 2005-12-20
    • Richard CarterHemanshu BhattShiqun GuPeter BurkeJames ElmerSey-Shing SunByung-Sung KwakVerne Hornback
    • Richard CarterHemanshu BhattShiqun GuPeter BurkeJames ElmerSey-Shing SunByung-Sung KwakVerne Hornback
    • H01L21/336
    • H01L51/0018B82Y10/00H01L27/283H01L51/0048H01L51/0545Y10S977/742
    • A method of forming a self-aligned logic cell. A nanotube layer is formed over the bottom electrode. A clamp layer is formed over the nanotube layer. The clamp layer covers the nanotube layer, thereby protecting the nanotube layer. A dielectric layer is formed over the clamp layer. The dielectric layer is etched. The clamp layer provides an etch stop and protects the nanotube layer. The clamp layer is etched with an isotropic etchant that etches the clamp layer underneath the dielectric layer, creating an overlap of the dielectric layer, and causing a self-alignment between the clamp layer and the dielectric layer. A spacer layer is formed over the nanotube layer. The spacer layer is etched except for a ring portion around the edge of the dielectric layer. The nanotube layer is etched except for portions that are underlying at least one of the clamp layer, the dielectric layer, and the spacer layer, thereby causing a self-alignment between the clamp layer, the overlap to the dielectric layer, the spacer layer, and the nanotube layer.
    • 一种形成自对准逻辑单元的方法。 在底部电极上形成纳米管层。 在纳米管层上形成夹层。 夹层覆盖纳米管层,从而保护纳米管层。 在钳位层上形成电介质层。 蚀刻介电层。 钳位层提供蚀刻停止并保护纳米管层。 用各向同性蚀刻剂蚀刻钳夹层,蚀刻介质层下方的夹层,产生电介质层的重叠,并引起钳位层和电介质层之间的自对准。 在纳米管层上形成间隔层。 除了围绕电介质层的边缘的环形部分之外,蚀刻间隔层。 除了夹持层,电介质层和间隔层中的至少一个的部分以外,蚀刻纳米管层,从而导致夹紧层之间的自对准,与电介质层的重叠,间隔层, 和纳米管层。
    • 10. 发明申请
    • Direct Smelting Plant and Process
    • 直接冶炼厂和工艺
    • US20070272058A1
    • 2007-11-29
    • US10576852
    • 2004-10-16
    • Andreas OrthDavid LeighPeter Burke
    • Andreas OrthDavid LeighPeter Burke
    • C21B15/00C22B3/02
    • F27B3/18C21B5/023C21B13/00C21B13/0013C21B13/143C21C5/567F27D13/00Y02P10/216
    • The present invention relates to a direct smelting plant and a direct smelting process for producing molten metal from a metalliferous feed material, such as ores, partly reduced ores, and metal-containing waste streams, the latter of which comprising the steps of (a) pretreating metalliferous feed material in a pretreatment unit and producing pretreated feed material having a temperature of at least 200° C., (b) storing pretreated metalliferous feed material having a temperature of at least 200° C. under pressure in a hot feed material storage means, (c) transferring pretreated metalliferous feed material having a temperature of at least 200° C. under pressure in a hot feed material transfer line to a solids delivery means of a direct smelting vessel, and (d) delivering pretreated metalliferous feed material into the direct smelting vessel and smelting metalliferous feed material to molten metal in the vessel.
    • 本发明涉及一种直接熔炼设备和用于从含金属的原料如矿石,部分还原的矿石和含金属的废物流中生产熔融金属的直接熔炼方法,后者包括以下步骤:(a) 在预处理单元中预处理含金属进料,并生产温度至少为200℃的预处理进料;(b)在热进料材料储存器中储存温度至少为200℃的预处理含金属进料 是指(c)在热进料输送管线中将压力为至少200℃的预处理的含金属进料传送到直接熔炼容器的固体输送装置,以及(d)将预处理的含金属进料输送到 直接熔炼容器和冶炼含金属进料到容器中的熔融金属。