Acoustic wave device, and filter and duplexer using the same
    6.
    发明授权
    Acoustic wave device, and filter and duplexer using the same 有权
    声波装置,以及使用相同的滤波器和双工器

    公开(公告)号:US08576025B2

    公开(公告)日:2013-11-05

    申请号:US12976030

    申请日:2010-12-22

    IPC分类号: H03H9/72 H03H9/64 H03H9/25

    摘要: An acoustic wave device includes a piezoelectric substrate, an IDT electrode provided on the piezoelectric substrate, a dielectric layer provided so as to cover the IDT electrode, and a first stress relaxation layer provided on the dielectric layer. Furthermore, the acoustic wave device includes an extraction electrode connected to the IDT electrode and extracted onto the first stress relaxation layer, and a bump provided on the extraction electrode. An elastic modulus of the first stress relaxation layer is smaller than that of the dielectric layer.

    摘要翻译: 声波装置包括压电基板,设置在压电基板上的IDT电极,设置为覆盖IDT电极的电介质层和设置在电介质层上的第一应力松弛层。 此外,声波器件包括连接到IDT电极并提取到第一应力松弛层上的引出电极和设置在引出电极上的凸块。 第一应力松弛层的弹性模量小于电介质层的弹性模量。

    Acoustic wave device
    7.
    发明授权
    Acoustic wave device 有权
    声波装置

    公开(公告)号:US08421307B2

    公开(公告)日:2013-04-16

    申请号:US13206660

    申请日:2011-08-10

    IPC分类号: H01L41/08

    摘要: An acoustic wave device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode, a reflector electrode, and a dummy electrode. The IDT electrode includes electrode fingers extending in a predetermined direction. The reflector electrode faces the IDT electrode across a gap. The dummy electrode is situated on a straight line extending in the predetermined direction through the gap. At least one of the distance between the dummy electrode and the IDT electrode and the distance between the dummy electrode and the reflector electrode is larger than the distance between the IDT electrode and the reflector electrode. This acoustic wave device prevents a short circuit between the IDT electrode and the reflector electrode, thereby avoiding a decrease in its yield.

    摘要翻译: 声波装置包括压电基板,叉指式换能器(IDT)电极,反射器电极和虚拟电极。 IDT电极包括沿预定方向延伸的电极指。 反射器电极跨越间隙面对IDT电极。 虚拟电极位于沿预定方向延伸穿过间隙的直线上。 虚拟电极和IDT电极之间的距离和虚拟电极与反射器电极之间的距离中的至少一个大于IDT电极和反射器电极之间的距离。 该声波装置防止IDT电极和反射器电极之间的短路,从而避免其产量的降低。

    Aqueous polyolefin resin dispersion
    9.
    发明授权
    Aqueous polyolefin resin dispersion 有权
    水性聚烯烃树脂分散体

    公开(公告)号:US06777096B2

    公开(公告)日:2004-08-17

    申请号:US10343334

    申请日:2003-01-28

    IPC分类号: B32B1508

    摘要: An aqueous dispersion that comprises: (A) a polyolefin terpolymer resin obtained from (a) an unsaturated carboxylic acid or anhydride thereof, (b) an ethylenic hycrocarbon, and (c) a specific compound, the proportion of (a) being 0.01 to 5 wt %, excluding 5 wt %, and the ratio of (b) to (c) being from 55/45 to 99/1 (wt %); (B) a basic compound; and (C) an aqueous medium, that the polyolefin terpolymer resin (A) dispersed in the aqueous medium has a number-average particle diameter of 1 &mgr;m or smaller, and that the dispersion contains substantially no nonvolatile water-compatibilizing agent. Also provided are a coated film obtained by applying this aqueous dispersion to a thermoplastic resin and a coated metal material obtained by applying this aqueous dispersion to a metal material.

    摘要翻译: 一种水分散体,其包含:(A)由(a)不饱和羧酸或其酸酐获得的聚烯烃三元共聚物树脂,(b)乙烯基环烷烃,和(c)特定化合物,(a)的比例为0.01〜 5重量%,不包括5重量%,(b)与(c)的比例为55/45至99/1(重量%); (B)碱性化合物; 和(C)水性介质,分散在水性介质中的聚烯烃三元共聚物树脂(A)的数均粒径为1μm以下,分散体基本上不含非挥发性水相溶剂。 还提供了通过将该水性分散体施加到热塑性树脂上获得的涂膜和通过将该水性分散体施加到金属材料而获得的涂覆金属材料。

    Poly(amic acid) solution and polyimide film or polymide-coated material
obtained therefrom
    10.
    发明授权
    Poly(amic acid) solution and polyimide film or polymide-coated material obtained therefrom 失效
    聚(酰胺酸)溶液和由其获得的聚酰亚胺膜或聚酰亚胺涂层材料

    公开(公告)号:US5719253A

    公开(公告)日:1998-02-17

    申请号:US539740

    申请日:1995-10-05

    摘要: This invention provides a poly(amic acid) solution which does not contain aprotic polar solvents such as DMF, NMP, DMAc, DMSO, as well as a polyimide film obtained therefrom having appropriate flexibility and a small coefficient of linear thermal expansion and a coated material in which the polyimide film is formed on a substrate. More particularly, it provides a poly(amic acid) solution which has an aromatic poly(amic acid) and a tertiary amine as the solute and a water soluble alcohol compound and/or a water soluble ether compound as the solvent and contains substantially no aprotic polar solvent, as well as a polyimide film obtained from the poly(amic acid) solution and a coated material obtained by forming the film on a substrate.

    摘要翻译: 本发明提供不含非质子极性溶剂如DMF,NMP,DMAc,DMSO的聚(酰胺酸)溶液,以及由其获得的具有适当柔性和小的线性热膨胀系数的涂覆材料 其中聚酰亚胺膜形成在基底上。 更具体地,它提供了具有芳族聚(酰胺酸)和叔胺作为溶质的聚(酰胺酸)溶液和水溶性醇化合物和/或水溶性醚化合物作为溶剂,并且基本上不含非质子 极性溶剂,以及由聚(酰胺酸)溶液获得的聚酰亚胺膜和通过在基材上形成膜得到的涂布材料。