High voltage SourceMeter is optimized for power semiconductor test
The 2600A product family aims at applications in the semiconductor industry. It allows customers to characterize a broad range of power semiconductor devices and materials. A built-in 3,000V, 180W source allows the Model 2657A to source up to five times as much power to a device under test as the nearest competitive system, at significantly lower cost, promises Keithley. The precision, high speed 6-1/2-digit measurement engine built into the Model 2657A enables 1fA (femtoamp) current measurement resolution to support the low-leakage requirements of next-generation power semiconductor devices.
The Model 2657A is optimized for high voltage applications such as testing power semiconductor devices, including diodes, FETs, and IGBTs, as well as characterizing newer materials such as gallium nitride (GaN), silicon carbide (SiC), and other compound semiconductor materials and devices. It is also useful for characterizing high speed transients and performing breakdown and leakage tests on a variety of electronic devices at up to 3,000V.
Like the rest of the Series 2600A family, the Model 2657A offers a flexible four-quadrant voltage and current source/load coupled with precision voltage and current meters. It combines the functionality of multiple instruments in a single full-rack enclosure: semiconductor characterization instrument, precision power supply, true current source, 6-1/2-digit DMM, arbitrary waveform generator, voltage or current pulse generator, electronic load, and trigger controller. In addition, it is expandable into a multi-channel, tightly synchronized system via Keithley’s TSP-Link technology. Unlike competitive solutions, which are typically limited in terms of power, the Model 2657A can source or sink up to 180W of DC power (±3,000V@20mA, ±1,500V@120mA).
The 2657A provides a choice of digitizing or integrating measurement modes for characterizing both transient and steady-state behavior, including rapidly changing thermal effects. Each mode is defined by two independent analog-to-digital (A/D) converters—one for current and the other for voltage—that run simultaneously to ensure accurate source readback without sacrificing test throughput. The digitizing measurement mode’s 18-bit A/D converters support one-microsecond-per-point sampling, so users can capture voltage and current transients simultaneously. In contrast, competing solutions typically must average multiple readings to produce a result, so they aren’t fast enough to characterize transient behavior. The integrating measurement mode, based on 22-bit A/D converters optimizes the operation for applications that demand the highest measurement accuracy and resolution.
Basic device characterization can be performed with no need for software installation or programming with TSP Express, Keithley’s LXI-based I-V test software utility. Users can connect a PC to the LXI LAN port and access TSP Express with any Java-enabled web browser. Test results can be viewed in either graphical or tabular format and exported for use with spreadsheet applications.
The Model 2657A can be connected to other instruments in a test system with standard safe high voltage (SHV) coaxial cable connections compatible with existing high voltage test applications. However, for applications that depend on getting the most from the instrument’s low current measurement performance, Keithley also offers special HV triaxial (guarded) connections.
The optional new Model 8010 High Power Device Test Fixture provides connections for testing packaged high power devices at up to 3,000V or 100A, making it safer and simpler to configure a device test system that includes the high voltage Model 2657A, one or two high current Model 2651A instruments, and up to three low power SMU instruments (other Series 2600A instruments or the Model 4200-SCS semiconductor characterization system). In addition to standard banana jumpers, the Model 8010 has rear-panel oscilloscope and thermal probe ports to simplify system integration for further DUT characterization.
Shipments will begin in May.
To learn more, visit: https://www.keithley.com/products/dcac/currentvoltage/highpower/?mn=2657A.
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