Метод измерения токов короткого замыкания печатных плат

Abstract

The aim of the study is to develop a new method, algorithm, software and mathematical methods for diagnosing printed circuit board conductors for such manufacturing defects as short circuits, breaks in circuit lines, etc. One of the main stages of printed circuit board diagnostics during production is to determine faulty places of electrical connections in the circuit leading to invalid signal values on the line. At present, either contact methods or a more advanced boundary scanning method using a special interface built into the board are used to localize short circuits of contacts by analyzing current values in nodes. Both of these methods require measuring the current value in one or more sections of the circuit. With the development of technology and the density of printed circuit board assembly, the number of test points becomes smaller, which increases the complexity of its diagnostics and testing. The essence of the study is to develop a method that would expand the capabilities of existing methods fo