Source Measure Units Information: The , , and Source-Measure Units SMU are fully programmable instruments, capable of sourcing and measuring voltage or current simulta- neously. These systems are really four instruments in one: voltage source, current source, voltage mea- sure and current measure. The offers the same capabilities with a decade enhancement in Voltage Source and mea- sure V. In this higher voltage range, current source and measure is 10mA maximum. The offers a decade enhancement in Current source and measure 1A. In this higher current range, voltage source and measure is 15V maximum.
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These systems are really four instruments in one: Voltage Source , Current source , voltage mea- sure and current measure. The offers the same capabilities with a decade enhancement in Voltage Source and mea- sure V. In this higher voltage range, current source and measure is 10mA maximum.
The offers a decade enhancement in Current source and measure 1A. In this higher current range, voltage source and measure is 15V maximum. The , , and will measure very small cur- rents and voltages. With current sensitivity of 10fA, measurement capabilities are equal to those of an electrometer. Selectable integration and the filtering of multiple measurements enhances sensitivity for demanding applications.
Programma- ble delay and fast, integrating measurement capa- bility can provide coordinated source-measure times of 1ms. Applications These instruments address a wide variety of appli- cations, including the characterization of semicon- ductor devices, and the measurement of leakage currents or resistivity.
They are particularly useful as source and measuring instruments in automated test equipment ATE. The , , and provide simple, accurate mea- surements in semiconductor applications. Multiple units controlled with a personal computer make a powerful semiconductor parameter Analyzer.
Non- standard tests are also performed efficiently be- cause of the unique versatility of these units. Two accessory semiconductor test fixtures maintain the signal integrity of the SMUs all the way to your device. The is a general purpose test fixture, and the is designed to accommodate either or pin devices. These test fixtures can be safety interlocked with the , , and to prevent accidental shock. A Keithley Model A or A switching matrix and semiconductor switching cards may be used in conjunction with the , , and for opti- mum performance in automated semiconductor measurement applications.
Keithley SMUs are powerful tools for research and industrial test applications. The short set-up time and simplified programming are big advantages for tests that need to be up and running quickly. The overall versatility is ideal for constantly changing research use.
The large dynamic range of source and measure capabilities permits accurate measurement of insu- lation resistance, leakage current, and dissipation factors. The high sensitivity of these units make them ideal for characterizing the electrical proper- ties of many materials.
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Keithley 236 Applications Manual
Keithley 237 High-Voltage Source-Measure Unit