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  • Making High Resistance Measurements on Small Crystals in Inert Gas or High Vacuum w/ the Model 6517A
    Technical Document

    Making High Resistance Measurements on Small Crystals in Inert Gas or High Vacuum w/ the Model 6517A

    Introduction Crystalline materials are fundamental to modern electronics and optoelectronics. Therefore, the electrical properties of these materials, such as their (anisotropic) conductivity and photoconductivity, as well as the …
  • Testing Battery Resistance
    Blog Entry

    Testing Battery Resistance

    It’s easy to think of a battery as a bucket full of energy. When we would like some energy, we connect our circuit and pour the energy out. However, this analogy doesn’t account for internal impedance …
  • Performing van der Pauw Sheet Resistance Measurements Using the Keithley S530 Parametric Tester
    Technical Document

    Performing van der Pauw Sheet Resistance Measurements Using the Keithley S530 Parametric Tester

    Accurate low voltage measurements are essential to many semiconductor tests. Often, test structures such as contact chains, vias, and metal structures have resistances on the order of tens to hundreds of milliohms. Measuring such small resistances …
  • Leakage Current and Insulation Resistance Measurements
    Technical Document

    Leakage Current and Insulation Resistance Measurements

    Introduction To measure the leakage current or insulation resistance of a device, you need to apply a fixed voltage to the device and measure the resulting current. Depending on the device under test, the measured current is …
  • Measuring Busbar Weld Resistance in Battery Packs
    Technical Document

    Measuring Busbar Weld Resistance in Battery Packs

    Testing at each point in the battery pack manufacturing process is critical to ensure that batteries meet proper safety and efficiency standards.  This application note discusses a simple, reliable method for conducting the busbar weld resistance test with Keithley’s 3706A System Switch/Multimeter and 2460 or 2461 High Current SMU.
  • How is resistance measured?
    Faq

    How is resistance measured?

    Electrical resistance is measured by either of two methods: constant current or constant voltage. The constant current technique sources a known current through an unknown resistance and the resulting voltage is measured. This technique is generally …
  • Technical Info Low Current/ High Resistance Measurements
    Technical Document

    Technical Info Low Current/ High Resistance Measurements

    An ammeter is an instrument for measuring electric current flow, calibrated in amperes. There are two main types of ammeter architectures: shunt ammeters and feedback ammeters. Shunt …
  • How do I test a JFET for Small Signal Forward Transfer Admittance on my curve tracer?
    Faq

    How do I test a JFET for Small Signal Forward Transfer Admittance on my curve tracer?

    Small SignalForward Transfer Admittance - |Yfs|(aka Small Signal Transconconductance - Gm)What It Is:Small signal forward transfer admittance is the ratio of a change in ID to a change in VGS, with the initial VGS value usually = 0. The (Delta I/ …
  • How do I test a bipolar transistor for Small Signal Current Gain on my curve tracer?
    Faq

    How do I test a bipolar transistor for Small Signal Current Gain on my curve tracer?

    Small SignalCurrent Gain - Small Signal Beta or hfeWhat It Is:Small signal current gain is the ratio of a change in IC to a change in IB, with the initial IC value specified.On the curve tracer, hfe is checked by measuring the difference in IC …