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    • 8. 发明申请
    • LOW LOSS SUBSTRATE FOR INTEGRATED PASSIVE DEVICES
    • 用于集成无源器件的低损耗基板
    • US20100140714A1
    • 2010-06-10
    • US12328325
    • 2008-12-04
    • Xiaowei RenWayne R. BurgerColin KerrMark A. Bennett
    • Xiaowei RenWayne R. BurgerColin KerrMark A. Bennett
    • H01L29/78H01L21/76H01L27/00
    • H01L27/08H01L21/763H01L27/0207H01L27/0617H01L27/0629H01L28/10
    • Electronic elements (44, 44′, 44″) having an active device region (46) and integrated passive device (IPD) region (60) on a common substrate (45) preferably include a composite dielectric region (62, 62′, 62″) in the IPD region underlying the IPD (35) to reduce electromagnetic (E-M) (33) coupling to the substrate (45). Mechanical stress created by plain dielectric regions (36′) and its deleterious affect on performance, manufacturing yield and occupied area may be avoided by providing electrically isolated inclusions (65, 65′, 65″) in the composite dielectric region (62, 62′, 62″) of a material having a thermal expansion coefficient (TEC) less than that of the dielectric material (78, 78′, 78″) in the composite dielectric region (62, 62′, 62″). For silicon substrates (45), non-single crystal silicon is suitable for the inclusions (65, 65′, 65″) and silicon oxide for the dielectric material (78, 78′, 78″). The inclusions (65, 65′, 65″) preferably have a blade-like shape separated by and enclosed within the dielectric material (78, 78′, 78″).
    • 在共用衬底(45)上具有有源器件区域(46)和集成无源器件(IPD)区域(60)的电子元件(44,44',44“)优选地包括复合电介质区域(62,62',62 “)在IPD(IP)(35)下方的IPD区域中以减少耦合到衬底(45)的电磁(EM)(33)。 可以通过在复合介电区域(62,62')中提供电隔离的夹杂物(65,65',65“)来避免由平坦介电区域(36')产生的机械应力及其对性能,制造产量和占用面积的有害影响, ,62“)具有比所述复合介电区域(62,62',62”)中的电介质材料(78,78',78“)的热膨胀系数小的热膨胀系数(TEC)的材料。 对于硅衬底(45),非单晶硅适用于电介质材料(78,78',78“)的夹杂物(65,65',65”)和氧化硅。 夹杂物(65,65',65“)优选具有由电介质材料(78,78',78”)分隔开并封闭在其中的刀片形状。
    • 9. 发明授权
    • Integrated circuits including integrated passive devices and methods of manufacture thereof
    • 集成电路,包括集成无源器件及其制造方法
    • US08906773B2
    • 2014-12-09
    • US13712051
    • 2012-12-12
    • Xiaowei RenWayne R. Burger
    • Xiaowei RenWayne R. Burger
    • H01L21/20H01L27/108
    • H01L23/5223H01L28/75H01L28/84H01L2924/0002H01L2924/00
    • Embodiments of integrated passive devices (e.g., metal insulator metal, or MIM, capacitors) and methods of their formation include depositing a composite electrode over a semiconductor substrate (e.g., on a dielectric layer above the substrate surface), and depositing an insulator layer over the composite electrode. The composite electrode includes an underlying electrode and an overlying electrode deposited on a top surface of the underlying electrode. The underlying electrode is formed from a first conductive material (e.g., AlCuW), and the overlying electrode is formed from a second, different conductive material (e.g., AlCu). The top surface of the underlying electrode may have a relatively rough surface morphology, and the top surface of the overlying electrode may have a relatively smooth surface morphology. For high frequency, high power applications, both the composite electrode and the insulator layer may be thicker than in some conventional integrated passive devices.
    • 集成无源器件(例如,金属绝缘体金属或MIM,电容器)的实施例及其形成方法包括在半导体衬底(例如,在衬底表面上方的电介质层上)沉积复合电极,以及将绝缘体层沉积在 复合电极。 复合电极包括底层电极和沉积在下面电极的顶表面上的上覆电极。 底层电极由第一导电材料(例如,AlCuW)形成,并且上覆电极由第二不同的导电材料(例如AlCu)形成。 底层电极的顶表面可能具有相对粗糙的表面形态,并且上覆电极的顶表面可具有相对平滑的表面形态。 对于高频,高功率应用,复合电极和绝缘体层可能比一些传统的集成无源器件更厚。