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    • 1. 发明申请
    • ELECTRONIC DEVICE
    • 电子设备
    • WO2005064701A8
    • 2006-10-26
    • PCT/IB2004052868
    • 2004-12-20
    • KONINKL PHILIPS ELECTRONICS NVPHILIPS INTELLECTUAL PROPERTYKLEE MAREIKE KRIJKS THEODOOR G S MLOK PIETERMAUCZOK RUEDIGER G
    • KLEE MAREIKE KRIJKS THEODOOR G S MLOK PIETERMAUCZOK RUEDIGER G
    • H01G5/16H01H1/00H01H57/00H01L41/09
    • H01G5/18H01G5/40H01H1/0036H01H57/00H01H2057/006H01L41/094
    • The microelectromechanical system (MEMS) element (101) comprises a first electrode (31) that is present on a surface of a substrate (30) and a movable element (40), which overlies at least partially the first electrode (31) and comprises a piezoelectric actuator, which movable element (40) is movable towards and from the substrate (30) by application of an actuation voltage between a first and a second position, in which the first position is separated from the substrate (30) by a gap. The piezoelectric actuator comprises a piezoelectric layer (25) which opposite surfaces is provided with a second and a third electrode (21,22) respectively, said second electrode (21) facing the substrate (30) and said third electrode (22) forming an input electrode of the MEMS element (101), so that a current path through the MEMS element (101) comprises the piezoelectric layer . The microelectromechanical system (MEMS) element (101) comprises a first electrode (31) that is present on a surface of a substrate (30) and a movable element (40). This overlies at least partially the first electrode (31) and comprises a piezoelectric actuator, which movable element (40) is movable towards and from the substrate (30) by application of an actuation volatge between a first and a second poistion, in which first position it is separated from the substrate (30) by a gap. Herein the piezoelectric actuator comprises a piezoelectric layer (25) that is on opposite surfaces provided with a second and a third electrode (21,22) respectively, said second electrode (21) facing the substrate (30) and said third electrode (22) forming an input electrode of the MEMS element (101), so that a current path between through the MEMS element (101), comprises the piezoelectric layer (25) and the tunable gap.
    • 微机电系统(MEMS)元件(101)包括存在于基板(30)的表面上的第一电极(31)和至少部分地覆盖第一电极(31)的可移动元件(40),并且包括 压电致动器,其中所述可移动元件(40)可以通过施加第一和第二位置之间的致动电压而朝向和离开所述基板(30)移动,其中所述第一位置与所述基板(30)分隔开间隙 。 压电致动器包括压电层(25),相对表面分别设置有第二和第三电极(21,22),所述第二电极(21)面向衬底(30)和所述第三电极(22)形成 MEMS元件(101)的输入电极,使得穿过MEMS元件(101)的电流路径包括压电层。 微机电系统(MEMS)元件(101)包括存在于基板(30)的表面上的第一电极(31)和可移动元件(40)。 至少部分地覆盖第一电极(31)并且包括压电致动器,该可移动元件(40)可以通过在第一和第二部分之间施加致动波动而朝向和离开基板(30)移动,其中第一 位置通过间隙与基板(30)分离。 这里,压电致动器包括分别在设置有第二和第三电极(21,22)的相对表面上的压电层(25),所述第二电极(21)面向衬底(30)和所述第三电极(22) 形成MEMS元件(101)的输入电极,使得穿过MEMS元件(101)之间的电流通路包括压电层(25)和可调节间隙。
    • 7. 发明申请
    • ELECTRONIC DEVICE
    • WO2005064701A3
    • 2005-07-14
    • PCT/IB2004/052868
    • 2004-12-20
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKLEE, Mareike, K.RIJKS, Theodoor, G., S., M.LOK, PieterMAUCZOK, Ruediger, G.
    • KLEE, Mareike, K.RIJKS, Theodoor, G., S., M.LOK, PieterMAUCZOK, Ruediger, G.
    • H01G5/16H01H1/00H01H57/00H01L41/09
    • The microelectromechanical system (MEMS) element (101) comprises a first electrode (31) that is present on a surface of a substrate (30) and a movable element (40), which overlies at least partially the first electrode (31) and comprises a piezoelectric actuator, which movable element (40) is movable towards and from the substrate (30) by application of an actuation voltage between a first and a second position, in which the first position is separated from the substrate (30) by a gap. The piezoelectric actuator comprises a piezoelectric layer (25) which opposite surfaces is provided with a second and a third electrode (21,22) respectively, said second electrode (21) facing the substrate (30) and said third electrode (22) forming an input electrode of the MEMS element (101), so that a current path through the MEMS element (101) comprises the piezoelectric layer . The microelectromechanical system (MEMS) element (101) comprises a first electrode (31) that is present on a surface of a substrate (30) and a movable element (40). This overlies at least partially the first electrode (31) and comprises a piezoelectric actuator, which movable element (40) is movable towards and from the substrate (30) by application of an actuation volatge between a first and a second poistion, in which first position it is separated from the substrate (30) by a gap. Herein the piezoelectric actuator comprises a piezoelectric layer (25) that is on opposite surfaces provided with a second and a third electrode (21,22) respectively, said second electrode (21) facing the substrate (30) and said third electrode (22) forming an input electrode of the MEMS element (101), so that a current path between through the MEMS element (101), comprises the piezoelectric layer (25) and the tunable gap.