The STD Event Detectors simultaneously monitor individual continuity loops with independent sense-currents flowing in each loop. The detection speed and resistance threshold range make the STD series ideal for solder-joint reliability studies. Such tests typically use "daisy chain" solder joints in wire-bonded packages mounted on special test-PCBs. These test boards are then thermally cycled, vibrated, shock-dropped, or mechanically flexed while being monitored with Event Detectors. The initial, short duration, intermittent failures of the joints are detected and recorded automatically with the cycle number, time, and date. With this technique, variations in interconnect design and soldering process parameters can be evaluated by direct comparison of test results. This type of electrical monitoring has proven to be far more reliable and less expensive than visual detection of solder joint failure. Other recent applications of STD Event Detectors include flex-circuit testing, flexible biomedical-cable testing, switch-chatter studies, and automotive electronic interconnect testing. New application needs are welcomed; call and discuss your needs with our engineering staff. 

For thermal-cycling, dro tests, or board bending tests, the STD Temperature Module is very useful. The STD Temperature Module is installed in the same chassis as the STD Event Detector, and continuously monitors the temperature of the thermal test chamber. For thermal-cycling tests, the Temperature Module adds failure-temperature data to the event data as well as tracking the thermal cycle count for failure analysis based on actual thermal cycles, rather than data collection cycles. For mechanical cycle or dro testing, the Temperature Module counts the number of mechanical cycles and appends the data stream. 

STD Event Detectors are normally supplied with a single, common Threshold Resistance (Vref) adjustment for all channels. A Multiple Threshold Resistance Adjustment option is available for STD Event Detectors that provides a separate resistance threshold setting for each bank of 64 channels. STD Event Detectors can also use the STD Wiring Harness for convenient sample wiring and setup.

STD Event Detector Systems include: WinDatalog Software, test input cables (10 ft long, PVC insulated) single-ended, serial communication cable, complete instruction manual, 1 year limited warranty.

Ordering Information
Order numbers: 64STD, 128STD, 192STD, 256STD.