DESIGN AND IMPLEMENTATION OF GRAPHICAL USER INTERFACE FOR SMART LOAD BOARD WITH RELAY TRACKER COUNTER
A circuit board created to act as an interface between the testing device and automatic test equipment (ATE) is known as a load board or device under test (DUT) board. The load board is made up of many electronic components such as relays that are used to test the DUT by setting it up. Mechanical relays (SPST, SPDT, DPDT) all have operational life time. After the relays have exceeded operational life time (defined as number of contact operations) as specified by the manufacturer, the mechanical relays will cease to operate properly or even stop working completely. This will affect the testing of the semiconductor IC and may inadvertently cause a quality issue. As a result, to automate the test routine, we designed a graphical user interface (GUI) programmed development to track the operation life of each relay of particular load board as preventive maintenance. Programming in Visual Basic was used to construct the graphical user interface.
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