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Practical analysis
Practical analysis is performed by testing using strain gauges. These strips measure the slightest stretching or compressing preforms. They are glued and wired with a special adhesive to all necessary places on the board to be measured. These wires connect the strain gauge to a measuring device. The electrical resistance is measured during the entire load cycle, i.e. from the pressure phase to the unload phase. Even minimal changes in the measured value can be recorded and can thus indicate possible deformations. With this detailed test result, defects can be detected in advance and avoided.

Theoretical analysis
In the theoretical stress test, the test specimen is read into a test system. Here, all forces acting on the test specimen during the load cycle are simulated on the computer. The result of this test is a detailed analysis of the test specimen with regard to its surface load. With the help of a coloration from green to red, uncritical and critical areas are distinguished by color. The higher the load, the more this area turns red. The red and thus critical areas can indicate possible deformations that impair the functionality of the test specimen.

The paint test is used for quality analysis of removed fixtures. The procedure is used to check the position of hold-downs and cut-outs. By means of paint adhesion and abrasion on corresponding components, compliance with position specifications is checked.

ESD = Electro-Static Discharge. This refers to the flow of an electric current as a result of potential differences. This causes a short, high electrical voltage pulse, which under certain circumstances can cause overvoltage and irreparably damage sensitive components. By using ESD material, our test fixtures are suitable for use in ESD-protected areas and are protected against this type of damage.

The functional test (FCT/FKT) is also called functional test and is used to test a functional unit for its required application range. The functional test simulates real conditions, tests the core function of a DUT and/or the application function of assemblies as a whole or in sub-areas.

The modular interchangeable sets for inline test systems are used for contacting electronic assemblies. They are particularly well suited for tests with high DUT throughput and low variance. Single-sided and double-sided contacting is possible, as is 2-stage contacting.

High-frequency fixtures are used in the testing of highly sensitive RF assemblies to measure high-frequency signals in an interference-free manner. Shielding attenuations in the frequency range up to 6 GHz are achieved, whereby the high-frequency assembly is safely shielded from interfering signals.

The boundary-scan test method is an electrical test method for electronic assemblies for the detection of error sources without physical access to the test object. In addition to the combination of analog and digital assemblies, assemblies with a high proportion of digital components are particularly suitable. The test access takes place via boundary scan cells. Signals are injected onto the DUT via defined paths and measured, so that no test points or test needles are required.

Mechanical test fixtures are mainly used in FCT and ICT. This type of fixture is opened and closed manually by means of a lever mechanism. GPS Prüftechnik offers these adapters in several series. Differentiating features are the size of the product surface, the number of spring contact probes (FKS), the parallel pressure mechanism and the size.

The term EOL Test means End-of-Line Test. It refers to quality control tasks that are carried out at the end of a production line. The main focus is on testing the flawless functionality of the product. If necessary, this can also be done under various external conditions.

With the user-friendly pneumatic test fixture, contact is generated by means of compressed air. This type of adapter has a parallel contact pressure mechanism, which is adopted by adding compressed air to pneumatically operated lifting cylinders. The pneumatic device takes over any manual effort of the operator.