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    • 3. 发明申请
    • MICRO-ELECTRO MECHANICAL SYSTEM DEVICE AND METHOD OF FORMING COMB ELECTRODES OF THE SAME
    • 微电子机械系统装置及其组合电极的形成方法
    • US20070284964A1
    • 2007-12-13
    • US11754414
    • 2007-05-29
    • Seok-whan ChungSeok-jin KangHyung ChoiHyun-ku Jeong
    • Seok-whan ChungSeok-jin KangHyung ChoiHyun-ku Jeong
    • H01G9/00H02N1/00
    • G02B26/0841B81B3/0086B81B2203/0136B81C1/00698
    • A micro-electro mechanical system (MEMS) device and a method of forming comb electrodes of the MEMS device are provided. The method includes forming a plurality of parallel trenches at regular intervals in one side of a first silicon substrate so as to define alternating first and second regions at different heights on the one side of the first silicon substrate, oxidizing the first silicon substrate in order to form an oxide layer in the first and second regions having different heights, forming a polysilicon layer on the oxide layer to at least fill up the trenches so as to level the oxide layer having different heights, bonding a second silicon substrate directly to a top surface of the polysilicon layer, selectively etching the second silicon substrate and the polysilicon layer using a first mask so as to form upper comb electrodes vertically aligned with the first regions, selectively etching the first silicon substrate using a second mask so as to form lower comb electrodes vertically aligned with the second regions, and removing the oxide layer interposed between the upper comb electrodes and the lower comb electrodes.
    • 提供了微电子机械系统(MEMS)装置和形成MEMS装置的梳状电极的方法。 该方法包括在第一硅衬底的一侧中以规则的间隔形成多个平行的沟槽,以便在第一硅衬底的一侧上限定不同高度的交替的第一和第二区域,氧化第一硅衬底,以便 在具有不同高度的第一和第二区域中形成氧化物层,在氧化物层上形成多晶硅层以至少填充沟槽,以使具有不同高度的氧化物层平坦化,将第二硅衬底直接接合到顶表面 使用第一掩模选择性地蚀刻第二硅衬底和多晶硅层,以形成与第一区域垂直对准的上梳状电极,使用第二掩模选择性地蚀刻第一硅衬底,从而形成下梳状电极 与第二区域垂直对准,以及去除介于上梳状电极和上梳状电极之间的氧化物层 下梳电极。
    • 4. 发明申请
    • Silicon-on-insulator substrate, fabricating method thereof, and method for fabricating floating structure using the same
    • 绝缘体上硅衬底及其制造方法以及使用其制造浮动结构的方法
    • US20060081929A1
    • 2006-04-20
    • US11242824
    • 2005-10-05
    • Seok-whan ChungHyung Choi
    • Seok-whan ChungHyung Choi
    • H01L21/84H01L27/12
    • B81C1/00579B81C2201/0132
    • A silicon-on-insulator (SOI) substrate including laminated layers of a substrate, an oxide layer, and a silicon layer in order. The oxide layer has an electrifying hole fluidly connected with the substrate and the electrifying hole is filled with a part of the silicon layer. A method for fabricating the floating structure is also disclosed which includes the steps of forming an oxide layer having a predetermined thickness on a substrate, forming one or more electrifying holes in an area of the oxide layer corresponding to an inner part of the floating structure, forming a silicon layer on the oxide layer including an electrification structure electrically connecting the silicon layer to the substrate, forming a pattern for the floating structure on the silicon layer, removing the oxide layer corresponding to an inner area of the pattern, forming a thermal oxide layer on a surface of the silicon layer, and removing the thermal oxide layer to form the floating structure.
    • 一种绝缘体上硅(SOI)衬底,包括衬底,氧化物层和硅层的叠层。 氧化物层具有与基板流体连接的带电孔,并且充电孔填充有硅层的一部分。 还公开了一种用于制造浮动结构的方法,其包括在衬底上形成具有预定厚度的氧化物层的步骤,在与浮动结构的内部对应的氧化物层的区域中形成一个或多个通电孔, 在所述氧化物层上形成硅层,所述硅层包括将所述硅层电连接到所述衬底的带电结构,在所述硅层上形成所述浮动结构的图案,除去与所述图案的内部区域对应的所述氧化物层,形成热氧化物 层,并且去除热氧化物层以形成浮动结构。
    • 5. 发明授权
    • Silicon-on-insulator substrate, fabricating method thereof, and method for fabricating floating structure using the same
    • 绝缘体上硅衬底及其制造方法以及使用其制造浮动结构的方法
    • US07208800B2
    • 2007-04-24
    • US11242824
    • 2005-10-05
    • Seok-whan ChungHyung Choi
    • Seok-whan ChungHyung Choi
    • H01L21/84H01L27/12
    • B81C1/00579B81C2201/0132
    • A silicon-on-insulator (SOI) substrate including laminated layers of a substrate, an oxide layer, and a silicon layer in order. The oxide layer has an electrifying hole fluidly connected with the substrate and the electrifying hole is filled with a part of the silicon layer. A method for fabricating the floating structure is also disclosed which includes the steps of forming an oxide layer having a predetermined thickness on a substrate, forming one or more electrifying holes in an area of the oxide layer corresponding to an inner part of the floating structure, forming a silicon layer on the oxide layer including an electrification structure electrically connecting the silicon layer to the substrate, forming a pattern for the floating structure on the silicon layer, removing the oxide layer corresponding to an inner area of the pattern, forming a thermal oxide layer on a surface of the silicon layer, and removing the thermal oxide layer to form the floating structure.
    • 一种绝缘体上硅(SOI)衬底,包括衬底,氧化物层和硅层的叠层。 氧化物层具有与基板流体连接的带电孔,并且充电孔填充有硅层的一部分。 还公开了一种用于制造浮动结构的方法,其包括在衬底上形成具有预定厚度的氧化物层的步骤,在与浮动结构的内部对应的氧化物层的区域中形成一个或多个通电孔, 在所述氧化物层上形成硅层,所述硅层包括将所述硅层电连接到所述衬底的带电结构,在所述硅层上形成所述浮动结构的图案,除去与所述图案的内部区域对应的所述氧化物层,形成热氧化物 层,并且去除热氧化物层以形成浮动结构。