Functional fixture is a kind of mechanical auxiliary equipment used to test semi-finished products / finished products or a process in the production process, so as to judge whether the tested object has achieved the purpose of the original designer.

The functional fixture is applied to analog, digital, memory, RF and power circuits, and the corresponding functional test fixture is required for each form.

The functional fixture can detect a large number of actual important functional paths and structural verification, and determine that there are no hardware errors, so as to make up for the missing parts in the previous test process. This requires a large number of analog / digital excitation to be continuously added to the unit under test (UUT), while monitoring the same number of analog / digital responses and fully controlling its execution process.