KEITHLEY solution service provider, belongs to Shenzhen Wanbo Instrumentation Co. It is committed to the integration of resources in the field of test and measurement and the development of test systems, providing intelligent solutions for the test and measurement of electronic manufacturing industry, scientific research, education, metrology and testing institutions.

For more than 70 years, Keithley, a Tektronix company, has been designing, manufacturing, and marketing advanced electrical test instruments and systems to meet the specialized needs of electronics manufacturers for high-performance production test, process monitoring, and product development.

Keithley has approximately 500 products for capturing, measuring, connecting, controlling or transmitting direct current (DC) or pulsed electrical signals. Keithley's customers include scientists and engineers in the global electronics industry involved in 3D sensing, advanced materials research, semiconductor device development and manufacturing, and production of end products such as portable wireless devices.

Keithley Instruments provides a full range of test and measurement solutions in many disciplines to engineers and scientists worldwide. Markets are positioned for high-precision instruments and data acquisition products requiring fine measurements of voltage, resistance, current, capacitance and charge, as well as complete system test solutions for mass production and assembly testing.

Weak current measurement
High Resistance Measurement
High Source Internal Resistance Voltage Measurement
Charge Measurement
Low Voltage Measurement
Low Resistance Measurement

Weak current measurement

Measurement of capacitor leakage; current measurement of semiconductor devices and wafers, MOSFETs, and PIN photodiodes; optical measurement of PMTs; APD reverse current measurement, ion beam current measurement, and an introduction to examples of IV characterization of CNTs.

Typical Application Downloads

  • Measurement of capacitor leakage weak current semiconductor measurement
  • Weak current measurement of MOSFETs
  • Optical measurement with photomultiplier tubes
  • Measurement of ion beam current
  • Photoconductive flow in PIN photodiodes
  • Measurement of reverse current in avalanche photodiodes
  • Carbon Nanotube Transistor (CNT) IV Characterization

High Resistance Measurement

Measurement of the surface insulation resistance of printed circuit boards using an electrostatic meter or picoammeter with a typical range of 107Q to 1016Q; measurement of the resistivity of insulating materials, including body resistivity and surface resistivity; semiconductor resistivity measurements using the four-probe technique and Vanderbilt technique; and measurement of the voltage coefficient of high-value resistors.

Typical Application Downloads

  • Surface Insulation Resistance Testing of Printed Circuit Boards
  • Measurement of the electrical resistivity of insulating materials
  • Measurement of semiconductor resistivity
  • Measurement of voltage coefficients of high resistance resistors

High Source Internal Resistance Voltage Measurement

SMUs and electrostatic meters are used to determine the dielectric absorption properties of capacitors, and electrostatic meters are used in electrochemical experiments to make pH measurements and to determine the concentration of specific ions with ion-selective electrodes, as well as to measure the conductivity of liquids.

Typical Application Downloads

  • Dielectric absorption of capacitors
  • Electrochemical measurements

Charge Measurement

Use the Coulomb function of an electrostatic meter and a stepped voltage source to measure capacitance; use a Faraday cup to measure the electrostatic charge on an object.

Typical Application Downloads

  • Measurement of capacitance
  • Measuring electrostatic charges on objects using a Faraday cup

Low Voltage Measurement

Comparison of standard cells; high resolution temperature and microcalorimetry using temperature sensors and nanovoltmeters; measurement of Hall voltage and resistivity using a six-section balanced bridge.

Typical Application Downloads

  • Comparison of standard batteries
  • High resolution temperature measurement and microcalorimetry
  • Measuring Hall Voltage and Resistivity with a 6-terminal Balanced Bridge

Low Resistance Measurement

A microohmmeter or nanovoltmeter with a current source is used to measure contact resistance, superconductor resistance, and conductor resistivity.

Typical Application Downloads

  • contact resistance
  • Resistance measurements of superconductors
  • Measurement of resistivity of conductive materials
digital source meter
DC power supply
digital multimeter
Data Acquisition System
Battery testing and simulation
Specialized instruments for low level sensitivity

Industry News & Company News

Industry Updates and Company News

How to use the impedance tester

February 14, 2025

In this article, we will describe the basic measurements of an impedance analyzer. Overview An impedance tester is an instrument used to measure AC resistance or impedance. This article will introduce the basic knowledge about impedance, the measurement method of impedance, and how to use the impedance tester. What is impedance? What is impedance? In short, it is "a quantity that indicates how difficult it is to flow alternating current". When an electrical product or motor is connected to an AC power source, current flows through the circuit. The ratio of voltage to current in the circuit at this point is the impedance. In other words, it controls...

What is an impedance tester?

February 14, 2025

The article will cover the basics of impedance and points of measurement. Impedance is the resistance of an AC circuit and is invisible. Therefore, it must be measured using a specialized measuring instrument such as an impedance tester. People who have never touched an impedance tester before may be more concerned about how it is used and what to look for when using it. Therefore, this article introduces the basics of impedance, how to use an impedance tester, and precautions to take when measuring in an easy-to-understand manner. ■ What is impedance? There may be some people who do not know what ...

How to use the current probe

February 14, 2025

Want to know how to use the current probe? Please first understand the following basic usage of the current probe and precautions for use. Since electricity is invisible, it is not possible to immediately determine whether a malfunction has occurred. In some cases, current measurements are required on a daily basis to prevent malfunctions, as well as to identify the cause of malfunctions when they do occur. Current can be measured using a variety of tools such as digital multimeters, clamp meters and current probes. This article will provide an easy-to-understand introduction to the basic use of current probes and the precautions to be taken when using them. ■ Current measurement ...

What is a current probe?

February 14, 2025

Many people use digital multimeters to easily measure current, voltage, resistance, etc. However, there is a drawback to using a digital multimeter to measure current, namely: the circuit must be disconnected and the digital multimeter must be connected in series with the circuit under test in order to make the measurement. In this case, a current probe can be used instead of a digital multimeter to make measurements. Since the electrical connection of the circuit is no longer required, current probes are less time-consuming and can be used for maintenance work and to locate faults. This article describes current probes in detail. ■ Definition of current probes Current probes are oscilloscope/recording...

How to use a digital multimeter

February 14, 2025

Digital multimeters are used, and this article will detail their advantages and disadvantages. ■ SUMMARY Electronic devices are powered by electricity. However, since electricity is invisible, it is necessary to use measuring instruments such as digital multimeters to check their safety and quality and to find out why malfunctions occur. Digital multimeters have so many buttons and ports that many people find them difficult to operate at first glance. In contrast, they are surprisingly easy to operate. Here, a detailed description of digital multimeters and how they differ from analog multimeters, as well as number...

What is a digital multimeter?

February 14, 2025

In this article, we will describe its basic information and its difference from an analog multimeter. ■ Summary The condition of an electronic device needs to be determined using a measuring instrument. For electronic devices whose condition cannot be determined visually, it is recommended that measurements be made with a digital multimeter. This section explains the basics of digital multimeters such as "What is a digital multimeter", "Is there a difference between a digital multimeter and an analog multimeter", the types of digital multimeters, and how to select a digital multimeter. ■ Beginners can also easily operate the digital multimeter Digital multimeter is a mainly used to measure ...

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