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    • 1. 发明申请
    • System and method for monitoring erosion
    • 监测侵蚀的系统和方法
    • US20050248334A1
    • 2005-11-10
    • US10841780
    • 2004-05-07
    • Pete DagenaisOrlando JesusLiping Li
    • Pete DagenaisOrlando JesusLiping Li
    • E21B47/00G01N17/00G01N23/00
    • E21B47/00
    • A system and method for monitoring erosion include a sensor (204) that is embedded in a substrate (202) having a first surface (206) that is subject to erosion and a second surface (208). The sensor (204) has a first mode in which the sensor (204) is responsive to RF interrogation (216) from a detector (212) and a second mode in which the sensor (204) is non-responsive to the RF interrogation. The sensor (204) transitions from the first mode to the second mode in response to being disabled due to contact with the erosive agent causing the erosion of the first surface (206). When the sensor (204) has transitioned to the second mode, this indicates that a predetermined level of erosion of the first surface (206) has occurred.
    • 用于监测侵蚀的系统和方法包括嵌入在具有受到侵蚀的第一表面(206)和第二表面(208)的基底(202)中的传感器(204)。 传感器(204)具有第一模式,其中传感器(204)响应于来自检测器(212)的RF询问(216)和传感器(204)不响应于RF询问的第二模式。 响应于由于与侵蚀剂接触导致第一表面(206)的侵蚀而被禁用,传感器(204)从第一模式转变到第二模式。 当传感器(204)转变到第二模式时,这表明已经发生了第一表面(206)的预定水平的侵蚀。
    • 4. 发明申请
    • Downhole Tool System and Method for Use of Same
    • 井下工具系统及其使用方法
    • US20080128126A1
    • 2008-06-05
    • US12017483
    • 2008-01-22
    • Pete C. DagenaisOrlando de JesusLiping Li
    • Pete C. DagenaisOrlando de JesusLiping Li
    • E21B12/02
    • E21B47/00
    • A downhole tool system includes a downhole tool operably positionable within a wellbore and a sensor positioned within the downhole tool. The sensor has a first mode and a second mode. In the first mode, the sensor is responsive to RF interrogation. In the second mode, the sensor is not responsive to RF interrogation. The sensor is operable to transition from the first mode to the second mode upon the occurrence of a predetermined level of erosion of the downhole tool proximate the sensor. A detector is operably positionable relative to the downhole tool and in communicative proximity to the sensor. The detector interrogates the sensor to determine whether the predetermined level of erosion has occurred.
    • 井下工具系统包括可操作地定位在井筒内的井下工具和位于井下工具内的传感器。 传感器具有第一模式和第二模式。 在第一种模式下,传感器响应RF询问。 在第二种模式下,传感器不响应RF询问。 当传感器附近的井下工具发生预定水平的侵蚀时,传感器可操作以从第一模式转换到第二模式。 检测器相对于井下工具可操作地定位并且与传感器通信。 检测器询问传感器以确定是否发生了预定的侵蚀水平。
    • 7. 发明申请
    • Desing and fabifcation of inductors on a semiconductor substrate
    • 电感器在半导体衬底上的设计和制作
    • US20070090914A1
    • 2007-04-26
    • US11638631
    • 2006-12-12
    • Jayakannan JayapalanShuxian ChenLiping Li
    • Jayakannan JayapalanShuxian ChenLiping Li
    • H01F5/00
    • H01F17/0033H01F17/0013H01F27/34H01L23/5227H01L27/08H01L2924/0002Y10T29/49073H01L2924/00
    • The present invention is directed to an inductor fabricated above a substrate surface comprising a first set of inductors in a lower dielectric layer, a second set of inductors in an upper dielectric layer, and interconnects extending between the first and second sets of conductors to form a single continuous helical current path that turns around a central region. Since each turn of the inductor includes only one leg close to the substrate, the parasitic capacitance between the inductor and the substrate can be reduced and there is more free space in the upper and lower layers for increasing the width of the conductors and thereby reducing the series resistance of the inductor. Meanwhile, since the magnetic field generated by the inductor is substantially confined in a closed tube defined by its turns, there is less interference between the inductor and its neighboring components on the same and/or surrounding substrates.
    • 本发明涉及一种在衬底表面上制造的电感器,其包括在下介电层中的第一组电感器,在上电介质层中的第二组电感器,以及在第一和第二组导体之间延伸的互连,以形成 围绕中心区域的单个连续螺旋电流路径。 由于电感器的每一圈仅包括靠近衬底的一个脚,电感器和衬底之间的寄生电容可以减小,并且在上层和下层中存在更多的自由空间,以增加导体的宽度,从而减少 电感的串联电阻。 同时,由于由电感器产生的磁场基本上限制在由其匝限定的闭合管中,所以在相同和/或周围的衬底上的电感器及其相邻部件之间的干扰较小。
    • 8. 发明授权
    • Method and apparatus for monitoring parasitic inductance
    • 用于监测寄生电感的方法和装置
    • US07067842B1
    • 2006-06-27
    • US10779593
    • 2004-02-13
    • Jayakannan JayapalanLiping LiYow-Juang Liu
    • Jayakannan JayapalanLiping LiYow-Juang Liu
    • H01L23/58
    • H01L22/34H01L2924/0002H01L2924/3011H01L2924/00
    • The present invention includes a method and apparatus for measuring a parasitic inductance associated with a portion of an integrated circuit fabricated on a semiconductor substrate. A test chip for measuring the parasitic inductance is fabricated together with the integrated circuit on the semiconductor substrate. The test chip includes an LC oscillator circuit having at least one substructure that resembles the portion of the integrated circuit and at least one varactor having a capacitance adjustable by a control voltage. When the LC oscillator circuit is connected to the control voltage source and the control voltage is at a certain level, an oscillation is generated in the LC oscillator and the frequency of oscillation can be used to determine the parasitic inductance associated with the portion of the integrated circuit.
    • 本发明包括一种用于测量与在半导体衬底上制造的集成电路的一部分相关联的寄生电感的方法和装置。 用于测量寄生电感的测试芯片与半导体衬底上的集成电路一起制造。 测试芯片包括LC振荡器电路,其具有类似于集成电路的部分的至少一个子结构和至少一个具有可由控制电压调节的电容的变容二极管。 当LC振荡器电路连接到控制电压源并且控制电压处于一定电平时,在LC振荡器中产生振荡,并且可以使用振荡频率来确定与集成的部分相关联的寄生电感 电路。
    • 9. 发明授权
    • Downhole tool system and method for use of same
    • 井下工具系统及其使用方法
    • US07594434B2
    • 2009-09-29
    • US12017483
    • 2008-01-22
    • Pete C. DagenaisOrlando de JesusLiping Li
    • Pete C. DagenaisOrlando de JesusLiping Li
    • E21B47/00
    • E21B47/00
    • A downhole tool system includes a downhole tool operably positionable within a wellbore and a sensor positioned within the downhole tool. The sensor has a first mode and a second mode. In the first mode, the sensor is responsive to RF interrogation. In the second mode, the sensor is not responsive to RF interrogation. The sensor is operable to transition from the first mode to the second mode upon the occurrence of a predetermined level of erosion of the downhole tool proximate the sensor. A detector is operably positionable relative to the downhole tool and in communicative proximity to the sensor. The detector interrogates the sensor to determine whether the predetermined level of erosion has occurred.
    • 井下工具系统包括可操作地定位在井筒内的井下工具和位于井下工具内的传感器。 传感器具有第一模式和第二模式。 在第一种模式下,传感器响应RF询问。 在第二种模式下,传感器不响应RF询问。 在接近传感器的井下工具的预定水平的侵蚀发生时,传感器可操作以从第一模式转换到第二模式。 检测器相对于井下工具可操作地定位并且与传感器通信。 检测器询问传感器以确定是否发生了预定的侵蚀水平。