When you are working on a project and need PCBs produced, you want to be able to get circuit boards that are going to work exactly as needed. One of the most important parts of the production and assembly process is electrical testing for your printed circuit boards. Advanced Circuits employs two different types of testing equipment to check for opens and shorts: Everett Charles ATG test machines that are flying probe, fixtureless testers and universal grid testers. Your bare PCBs will undergo testing using CAD/CAM data for all test programs while meeting Class 2 requirements. Tests will measure capacitance and resistance in order to check that each PCB is up to your standards. All testing follows IPC 9252 specification guidelines, meaning that 100% of the networks on the board are checked for continuity and isolation using a test program from your Gerber data.
Understanding Capacitance and Resistance Tests for Printed Circuit Boards
Both capacitance and resistance tests are used on your printed circuit boards to test their quality before being shipped to you for use. Capacitance testing for bare boards involves charging a net or plane before probing each net to measure the induced capacity. Inaccuracies do occur with this method due to inherent variability in producing PCBs. Resistance testing measures the resistance found in the net, which is proportional to length and inversely proportional to the cross-sectional area of a conductor. A good conductor will have a low resistance. To learn more about the electrical testing of your PCBs during production contact an expert at Advanced Circuits.