In-Circuit Testing One of the most powerful and comprehensive tools for printed circuit board test is called, In-Circuit Test (ICT). ICT test equipment uses a bed-of-nails (test probes) to access circuit noes on a board assembly and measure components on an isolated basis. That is, one component at a time, regardless of any other components electrically connected […]
A flying probe tester is an automated test system which some specific advantages for particular applications. The Basics Flying probe testers avoid a custom, unique âbed-of-nailsâ fixture for a given PCB assembly to access all the required nodes . Rather, the system uses a generic board fixture, and one or more probes moves across the board to […]
Basics of an ICT test system An ICT tester consists of Controller – The controller is a computer to drive the system and run the required software. Switch – Routes the system to the specific area or node of the board to test. Interface – To allow a variety of board fixtures to be placed […]
A Manufacturing Defect Analyzer (MDA) is a tool that uses in-circuit test techniques to enable the detection of manufacturing defects within a printed circuit board assembly. Since the majority of manufacturing defects are simple connection issues, an MDA is restricted to making measurements of continuity. MDA Basics A MDA tester is based on the condition that the […]
