NI Expands PXI Capabilities For Semiconductor Testing

Dec. 21, 2009
National Instruments has developed 10 PXI products that expand the capabilities of PXI for mixed-signal semiconductor test.

National Instruments has developed 10 PXI products that expand the capabilities of PXI for mixed-signal semiconductor test. The suite of new software-defined products, which are optimised for use with NI LabVIEW graphical system design software, includes four high-speed digital I/O (HSDIO) instruments, two digital switches, two enhanced RF instruments, a high-precision source measure unit (SMU) and specialised digital vector file importing software.

The suite incorporates new features, including 200-MHz single-ended digital I/O, 10-pA current resolution, rapid multiband RF measurements, DC/digital switching, and Waveform Generation Language (WGL) and IEEE 1450 Standard Test Interface Language (STIL) file importing capability. The PXI Semiconductor Suite continues the enhancement of PXI capabilities for testing common semiconductor devices such as ADCs, DACs, power-management ICs, wireless ICs, and microelectromechanical systems (MEMS) devices. National Instruments says the suite delivers higher throughput, greater flexibility, and faster development time compared to traditional box instrumentation and automatic test equipment (ATE) solutions often used for characterisation, validation and production test of these semiconductor devices.

The NI PXIe-654x family of HSDIO instruments includes four new modules that offer single-ended clock rates up to 200 MHz and data rates up to 400 Mbps, making it possible for engineers to test high-speed chip designs and accommodate faster custom communication protocols. Advanced digital modules in this family include several additional features such as bidirectional communication, real-time bit comparison, double data rate capability, and multiple timing delays for different I/O lines. There’s also the ability to select from 22 different voltage levels (from 1.2 to 3.3 V) for increased digital I/O test flexibility. These new digital I/O devices expand the NI PXI-654x, PXI-655x, and PXI-656x series high-speed digital offerings to a total of 10 PXI instruments with single-ended and LVDS voltage capabilities up to 200 MHz.

The new NI PXI-4132 high-precision SMU delivers current sensitivity down to 10 pA for high-resolution current measurements. It features remote (four-wire) sensing and external guarding on a single output to provide up to ±100 V capability in a single PXI slot. The SMU also offers several other advancements including an onboard hardware sequencing engine for hardware-timed, high-speed curve traces, and the ability to trigger and synchronise multiple PXI-4132 SMUs over the PXI backplane.

The PXI-4132 complements the existing NI PXI-4130 power SMU, which provides a four-quadrant, 40 W output (±20 V, ±2 A) to deliver high-precision and high-power source measure options for PXI. The new NI PXI-2515 and NI PXIe-2515 digital switches further enhance the suite of PXI products by helping engineers to multiplex precision DC instrumentation directly onto HSDIO lines connected to the chip under test. The new switches also provide improved signal connectivity for parametric measurements while maintaining signal integrity on high-speed digital edges.

The new NI PXIe-5663E and NI PXIe-5673E 6.6 GHz RF PXI Express vector signal analyser and vector signal generator offer increased measurement speed through fast and deterministic changes in RF configurations using a new feature called RF List Mode to significantly reduce test time. The new functionality makes it possible for engineers to download preconfigured instrument parameters to rapidly cycle through different RF configurations. The PXI Semiconductor Suite also introduces a solution for efficiently importing WGL and STIL digital vector formats to streamline design-to-test integration when using NI PXI high-speed digital products.

The result of collaboration between NI and Test Systems Strategies (TSSI), the new TSSI TD-Scan for National Instruments software makes it possible for semiconductor test engineers to import WGL and STIL simulation vectors into PXI systems, a task which previously required custom software development.

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