The in-circuit test is a test procedure for testing electronic assemblies and populated circuit boards (PCBA). The focus is on testing analogue component parameters (e.g. resistance, capacitance, inductance),
as well as the testing of digital components (ICs) with the help of defined test signals that are fed in and whose effects are measured.
The term "automated test equipment" includes machines and systems that incorporate measurement technology and stimulation in order to test the products manufactured by the electronics industry. Depending on the design of such test systems, for example
integrated circuits, analogue components or even complete printed circuit board assembly (PCBA) can be tested. Often, contact tests, parameter tests or function tests are carried out separately - but some systems also combine these tests.
PCBA stands for Printed Circuit Board Assembly.
A parametric test measures analogue component parameters such as resistance, capacitance, forward voltage, leakage current, supply voltages.
A functional test checks the entire function of a module (communication, behaviour, reaction to stimulation) or a building block (logical operations, write/read).
A bed of nails fixtures is used to test electronic assemblies - the fixture contacts circuit boards or components using fine test needles to stimulate or measure signals.
MSA 1 is the abbreviation for Measuring System Analysis or Measuring Equipment Capability Analysis or Test Equipment Capability Analysis in Procedure 1. This procedure examines the accuracy and repeatability of a measuring system.
MSA 2 is the abbreviation for Measuring System Analysis or Gauge Capability Analysis or Gauge Capability Analysis in Procedure 2. This procedure examines the repeatability and reproducibility of a measuring device.
Traceability means that a product can be traced back to when and where it was manufactured, tested, stored, transported and sold.
True Parallel Testing stands for a technology that enables the true parallel (i.e. simultaneous) testing of several assemblies.