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    • 3. 发明授权
    • Control system for in-situ feeding back a polish profile
    • 用于原位反馈抛光轮廓的控制系统
    • US06706140B2
    • 2004-03-16
    • US09682486
    • 2001-09-07
    • Chia-Lin HsuShao-Chung HuTeng-Chun Tsai
    • Chia-Lin HsuShao-Chung HuTeng-Chun Tsai
    • B24B4900
    • B24B37/04B24B49/10B24B57/02H01L21/30625
    • A chemical mechanical polishing (CMP) machine has a polish platen, having at least a first ring-shaped region and a second ring-shaped region. A control system for in-situ feeding back a polish profile of the CMP machine has at least a first sensor and a second sensor, respectively installed in the first and the second ring-shaped regions, and a control unit electrically connected to the first sensor and the second sensor for comparing the polish rates of portions of the wafer over the first and the second ring-shaped regions, respectively, according to signals of the first and the second sensors, and adjusting amounts of a slurry supplied by first and second slurry pump valves, corresponding to the first and second ring-shaped regions, according to a predetermined process, or adjusting forces loaded to the first and second regions of the wafer according to the predetermined process.
    • 化学机械抛光(CMP)机器具有抛光台板,具有至少第一环形区域和第二环形区域。 用于原位反馈CMP机的抛光轮廓的控制系统具有分别安装在第一和第二环形区域中的至少第一传感器和第二传感器,以及电连接到第一传感器的控制单元 以及第二传感器,用于根据第一和第二传感器的信号分别比较第一和第二环形区域上的部分晶片的抛光速率,以及调节由第一和第二浆料供应的浆料的量 根据预定过程对应于第一和第二环形区域的泵阀,或根据预定过程加载到晶片的第一和第二区域的调节力。
    • 5. 发明授权
    • Method for removing carbon-rich particles adhered on a copper surface
    • 去除附着在铜表面上的富碳颗粒的方法
    • US06455432B1
    • 2002-09-24
    • US09729220
    • 2000-12-05
    • Teng-Chun TsaiChia-Lin HsuYung-Tsung WeiMing-Sheng Yang
    • Teng-Chun TsaiChia-Lin HsuYung-Tsung WeiMing-Sheng Yang
    • H01L21461
    • H01L21/7684H01L21/02074H01L21/31053Y10S438/906
    • A method for removing carbon-rich particles adhered on a copper surface, especially on a copper surface of a copper/low k dielectric dual damascene structure is provided. A barrier layer and a barrier-CMP stopping layer are formed between the copper layer and the low k dielectric layer of the dual damascene structure. After a Cu-CMP process and a barrier CMP process, a chemical buffing polishing process using an acidic aqueous solution under a downward force of about 0.5 to 3 psi is performed to remove carbon-rich particles adhered on the exposed copper surface, which is due to the low k dielectric layer having at least 90% carbon element being exposed and then polished during the Cu-CMP process and the barrier CMP process, resulting from a dishing phenomenon of the copper layer occurring during the two CMP processes. Alternately, a first chemical buffing polishing process is followed after the Cu-CMP process, and a second chemical buffing polishing process is followed after the barrier CMP process.
    • 提供了一种去除附着在铜表面上的富碳颗粒的方法,特别是在铜/低k电介质双镶嵌结构的铜表面上。 在双镶嵌结构的铜层和低k电介质层之间形成阻挡层和阻挡CMP阻挡层。 在Cu-CMP工艺和阻挡CMP工艺之后,进行在约0.5至3psi的向下的力下使用酸性水溶液的化学抛光抛光工艺,以除去粘附在暴露的铜表面上的富碳颗粒,这是由于 到具有至少90%的碳元素的低k电介质层被暴露,然后在Cu-CMP工艺和阻挡CMP工艺期间被抛光,这是由于在两个CMP工艺期间发生的铜层的凹陷现象引起的。 或者,在Cu-CMP工艺之后进行第一次化学抛光抛光工艺,并且在阻挡CMP工艺之后遵循第二次化学抛光抛光工艺。