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    • 3. 发明申请
    • THIN-LAYERED PIEZO-RESONATOR
    • 薄膜压电谐振
    • WO99059244A2
    • 1999-11-18
    • PCT/DE1999/001393
    • 1999-05-07
    • H03H3/04H03H9/02H03H9/17H03H9/00
    • H03H9/173H03H3/04H03H2003/0428
    • Preferably, the resonator is provided with lithographically produced holes or similar structures in the top electrode layer. The average distance between said holes or structures is shorter than the wavelength provided in order to operate each component. Said structures are preferably distributed in both an even manner to enable uniform modification of layer mass for each surface and specific adjustment of the resonance frequency or frequencies, and in an uneven manner in order to avoid the effects of diffraction.
    • 谐振器设置在覆盖电极的层中或附加层中,其中优选地具有光刻产生的孔或类似的结构,这些孔或结构相互之间的平均距离小于元件操作期间的预期波长。 该结构化优选充分地均匀分布的,在每单位面积的层的质量均匀的变化造成的,并且因此谐振频率(多个)的一个具体的调整发生,并且在另一方面,以便不规则地分布,从而避免了该衍射效应。
    • 6. 发明申请
    • RESONATOR STRUCTURE AND METHOD OF PRODUCING IT
    • 谐振器结构及其生产方法
    • WO2005034345A8
    • 2006-07-20
    • PCT/IB2004051867
    • 2004-09-27
    • PHILIPS INTELLECTUAL PROPERTYKONINKL PHILIPS ELECTRONICS NVLOEBL HANS PETERMILSOM ROBERT FREDERICKMETZMACHER CHRISTOF
    • LOEBL HANS PETERMILSOM ROBERT FREDERICKMETZMACHER CHRISTOF
    • H03H9/02H03H3/04H03H9/17H03H9/56
    • H03H9/175H03H3/04H03H9/564H03H2003/0428Y10T29/42
    • In order to provide a resonator structure (100) in particular a bulk-acoustic-wave (BAW) resonator, such as a film BAW resonator (FBAR) or a solidly-mounted BAW resonator (SBAR), comprising at least one substrate (10); at least one reflector layer (20) applied or deposited on the substrate (10); at least one bottom electrode layer (30), in particular bottom electrode, applied or deposited on the reflector layer (20); at least one piezoelectric layer (40), in particular C-axis normal piezoelectric layer, applied or deposited on the bottom electrode layer (30); at least one top electrode layer (50), in particular top electrode, applied or deposited on the bottom electrode layer (30) and/or on the piezoelectric layer (40) such that the piezoelectric layer (40) is in between the bottom electrode layer (30) and the top electrode layer (50), it is proposed that at least one dielectric layer (63, 65) applied or deposited in and/or on at least one space in at least one region of non-overlap between the bottom electrode layer (30) and the top electrode layer (50). The invention is also concerned with a method of making such resonator structure a its use.
    • 为了提供特别是诸如膜BAW谐振器(FBAR)或固体安装的BAW谐振器(SBAR)的体声波(BAW)谐振器的谐振器结构(100),包括至少一个衬底(10 ); 施加或沉积在所述衬底(10)上的至少一个反射器层(20); 至少一个底部电极层(特别是底部电极)施加或沉积在反射器层(20)上; 施加或沉积在底部电极层(30)上的至少一个压电层(40),特别是C轴正常压电层; 至少一个顶部电极层(50),特别是顶部电极,施加或沉积在底部电极层(30)上和/或压电层(40)上,使得压电层(40)位于底部电极 层(30)和顶部电极层(50),提出在至少一个空间中的至少一个空间中施加或沉积至少一个不重叠的区域中的至少一个电介质层(63,65) 底部电极层(30)和顶部电极层(50)。 本发明还涉及使其使用这种谐振器结构的方法。