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    • 9. 发明授权
    • Method for fabricating MEMS structure
    • MEMS结构的制造方法
    • US08096048B2
    • 2012-01-17
    • US12849168
    • 2010-08-03
    • Bang-Chiang LanMing-I WangLi-Hsun HoHui-Min WuMin ChenChien-Hsin HuangTzung-I Su
    • Bang-Chiang LanMing-I WangLi-Hsun HoHui-Min WuMin ChenChien-Hsin HuangTzung-I Su
    • B81C1/00
    • B81C1/00246B81C2203/0714B81C2203/0742Y10T29/41Y10T29/49155
    • A method for fabricating a MEMS is described as follows. A substrate is provided, including a circuit region and a MEMS region separated from each other. A first metal interconnection structure is formed on the substrate in the circuit region, and simultaneously a first dielectric structure is formed on the substrate in the MEMS region. A second metal interconnection structure is formed on the first metal interconnection structure, and simultaneously a second dielectric structure, at least two metal layers and at least one protection ring are formed on the first dielectric structure. The metal layers and the protection ring are formed in the second dielectric structure and the protection ring connects two adjacent metal layers to define an enclosed space between two adjacent metal layers. The first dielectric structure and the second dielectric structure outside the enclosed space are removed to form a MEMS device in the MEMS region.
    • MEMS的制造方法如下所述。 提供了包括彼此分离的电路区域和MEMS区域的衬底。 第一金属互连结构形成在电路区域中的衬底上,并且同时在MEMS区域中的衬底上形成第一电介质结构。 第二金属互连结构形成在第一金属互连结构上,并且同时具有第二电介质结构,至少两个金属层和至少一个保护环形成在第一电介质结构上。 金属层和保护环形成在第二电介质结构中,并且保护环连接两个相邻的金属层以限定两个相邻金属层之间的封闭空间。 去除封闭空间外部的第一电介质结构和第二电介质结构,以在MEMS区域中形成MEMS器件。