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    • 5. 发明申请
    • MEMS DEVICE HAVING CONDUCTIVE MICROSTRUCTURES LATERALLY SURROUNDED BY OXIDE MATERIAL
    • 具有导电性微结构的MEMS器件由氧化物材料
    • US20150291414A1
    • 2015-10-15
    • US14688546
    • 2015-04-16
    • Freescale Semiconductor, Inc.
    • LIANJUN LIU
    • B81B3/00
    • B81B3/0021B81B2207/096B81C1/00134B81C1/00611B81C2201/0121B81C2203/00
    • A MEMS device includes a first substrate structure and a second substrate structure. The first substrate structure has a conductive microstructure and an oxide material surrounding lateral side of the conductive microstructure. A thickness of the conductive microstructure and a thickness of the oxide material are approximately equivalent. The second substrate structure has an active region of the MEMS device, and the second substrate structure is coupled in spaced apart relationship with the first substrate structure to produce a cavity between the structures. The active region of the MEMS device is suspended above the cavity and the conductive microstructure underlies the cavity. The conductive microstructure is formed from a polysilicon structure layer and a local oxidation of silicon process is implemented to thermally grow the oxide material using the polysilicon of the structural layer. The second substrate structure may be coupled to the first substrate structure by fusion bonding.
    • MEMS器件包括第一衬底结构和第二衬底结构。 第一衬底结构具有导电微结构和围绕导电微结构的侧面的氧化物材料。 导电微结构的厚度和氧化物材料的厚度大致相等。 第二衬底结构具有MEMS器件的有源区,并且第二衬底结构以与第一衬底结构间隔开的关系耦合以在结构之间产生腔。 MEMS器件的有源区域悬挂在空腔上方,导电微结构位于空腔的下面。 导电微结构由多晶硅结构层形成,并且实施硅工艺的局部氧化以使用结构层的多晶硅热生长氧化物材料。 第二衬底结构可以通过熔融结合耦合到第一衬底结构。
    • 8. 发明授权
    • Method for fabricating multiple types of MEMS devices
    • 制造多种MEMS器件的方法
    • US09034679B2
    • 2015-05-19
    • US13926652
    • 2013-06-25
    • FREESCALE SEMICONDUCTOR, INC.
    • Lianjun Liu
    • H01L29/84H01L21/02B81C1/00B81B3/00
    • B81B3/0021B81B2207/096B81C1/00134B81C1/00611B81C2201/0121B81C2203/00
    • A method entails providing a substrate with a structural layer having a thickness. A partial etch process is performed at locations on the structural layer so that a portion of the structural layer remains at the locations. An oxidation process is performed at the locations which consumes the remaining portion of the structural layer and forms an oxide having a thickness that is similar to the thickness of the structural layer. The oxide electrically isolates microstructures in the structural layer, thus producing a structure. A device substrate is coupled to the structure such that a cavity is formed between them. An active region is formed in the device substrate. A short etch process can be performed to expose the microstructures from an overlying oxide layer.
    • 一种方法需要为基底提供具有厚度的结构层。 在结构层上的位置处执行局部蚀刻工艺,使得结构层的一部分保留在该位置。 在消耗结构层的剩余部分的位置处进行氧化处理,并形成厚度类似于结构层的厚度的氧化物。 氧化物电隔离结构层中的微结构,从而产生结构。 器件衬底耦合到结构,使得在它们之间形成空腔。 在器件衬底中形成有源区。 可以进行短蚀刻工艺以从上覆的氧化物层露出微结构。
    • 9. 发明授权
    • Apparatus integrating microelectromechanical system device with circuit chip and methods for fabricating the same
    • 将微机电系统装置与电路芯片集成的装置及其制造方法
    • US08809972B2
    • 2014-08-19
    • US13173119
    • 2011-06-30
    • Chao Ta HuangShih Ting LinYu Wen Hsu
    • Chao Ta HuangShih Ting LinYu Wen Hsu
    • H01L23/10
    • B81C1/00134B81B7/0064B81C1/0023B81C2203/00B81C2203/0792H01L41/0933H01L41/1134H01L2224/11
    • One embodiment discloses an apparatus integrating a microelectromechanical system device with a circuit chip which comprises a circuit chip, a microelectromechanical system device, a sealing ring, and a lid. The circuit chip comprises a substrate and a plurality of metal bonding areas. The substrate has an active surface with electrical circuit area, and the metal bonding areas are disposed on the active surface and electrically connected to the electrical circuits. The microelectromechanical system device comprises a plurality of bases and at least one sensing element. The bases are connected to at least one of the metal bonding areas. The at least one sensing element is elastically connected to the bases. The sealing ring surrounds the bases, and is connected to at least one of the metal bonding areas. The lid is opposite to the active surface of the circuit chip, and is connected to the sealing ring to have a hermetic chamber which seals the sensing element and the active surface of the circuit chip.
    • 一个实施例公开了一种将微机电系统装置与包括电路芯片,微机电系统装置,密封环和盖子的电路芯片集成的装置。 电路芯片包括基板和多个金属接合区域。 基板具有具有电路面积的有源表面,并且金属接合区域设置在有源表面上并电连接到电路。 微机电系统装置包括多个基座和至少一个感测元件。 基底连接至至少一个金属接合区域。 至少一个感测元件弹性地连接到基座。 所述密封环围绕所述基部,并且与所述金属接合区域中的至少一个连接。 盖与电路芯片的有效表面相对,并连接到密封环,以具有密封感测元件和电路芯片的有效表面的密封室。