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    • 67. 发明申请
    • METAL-INSULATOR-METAL CAPACITOR STRUCTURES
    • 金属绝缘体 - 金属电容器结构
    • US20150221716A1
    • 2015-08-06
    • US14688807
    • 2015-04-16
    • QUALCOMM, Incorporated
    • Renatas JakushokasVaishnav SrinivasRobert Won Chol Kim
    • H01L49/02
    • H01L28/60H01G4/002H01G4/005H01G4/33H01G4/385H01L23/5223H01L27/0805H01L28/40H01L28/87H01L28/91H01L2924/0002H01L2924/00
    • Capacitor structures capable of providing both low-voltage capacitors and high-voltage capacitors are described herein. In one embodiment, a capacitor structure comprises a first electrode formed from a first metal layer, a second electrode formed from a second metal layer, and a third electrode formed from a third metal layer, wherein second and third electrodes are spaced farther apart than the first and second electrodes. The capacitor structure also comprises a first dielectric layer between the first and second electrodes, and a second dielectric layer between the second and third metal layers, wherein the second dielectric layer has a larger thickness than the first dielectric layer. The first electrode is coupled to a first power-supply rail, the third electrode is coupled to a second power-supply rail, and the second power-supply rail has a higher power-supply voltage than the first power-supply rail.
    • 本文描述了能够提供低电压电容器和高压电容器的电容器结构。 在一个实施例中,电容器结构包括由第一金属层形成的第一电极,由第二金属层形成的第二电极和由第三金属层形成的第三电极,其中第二和第三电极间隔比第 第一和第二电极。 电容器结构还包括在第一和第二电极之间的第一电介质层和在第二和第三金属层之间的第二电介质层,其中第二电介质层具有比第一电介质层更大的厚度。 第一电极耦合到第一电源轨,第三电极耦合到第二电源轨,并且第二电源轨具有比第一电源轨更高的电源电压。
    • 68. 发明申请
    • VOLTAGE AND TEMPERATURE INDEPENDENT MIM CAPACITORS
    • 电压和温度独立的MIM电容器
    • US20150221713A1
    • 2015-08-06
    • US14170151
    • 2014-01-31
    • WaferTech, LLC
    • Hsin-l LIWen-Bin TsaiKin Fung Lam
    • H01L49/02H01L23/34H01L23/522
    • H01L23/5223H01L27/0805H01L28/40H01L2924/0002H01L2924/00
    • MIM capacitors that are temperature and/or voltage independent, and a methodology for formulating the MIM capacitors for use in semiconductor integrated circuits, is provided. Vertical MIM capacitive structures include at least two vertically separated electrodes and a capacitor dielectric that includes portions of different dielectric materials provided in a desired area ratio. The disclosure provided for selecting dielectrics and dielectric thicknesses, determining an area ratio that produces temperature and/or voltage independent MIM capacitors, and forming capacitive devices with the desired area ratio. In one embodiment, the capacitor dielectric includes at least one SiO dielectric portion and at least one SiN dielectric portion and a total capacitive area includes the SiN and SiO dielectric portions arranged such that the ratio of the area of the SiO portions to the area of the SiN portions is about 1.15:1.
    • 提供温度和/或电压无关的MIM电容器,以及用于制定用于半导体集成电路的MIM电容器的方法。 垂直MIM电容结构包括至少两个垂直分离的电极和电容器电介质,其包括以期望的面积比提供的不同介电材料的部分。 本公开提供用于选择电介质和介电厚度,确定产生温度和/或电压不依赖的MIM电容器的面积比,以及形成具有所需面积比的电容器件。 在一个实施例中,电容器电介质包括至少一个SiO电介质部分和至少一个SiN电介质部分,并且总电容区域包括SiN和SiO电介质部分,其布置成使得SiO部分的面积与 SiN部分约为1.15:1。