Advantages: 1) Cost saving For each new probe card just a set-up kit is needed. A set-up kit consists of an insert ring and an insert motherboard. 2) Time saving: Quick changing from one type of probe-card to another. 3) Universal use: The same set-up kits can be used with several test-systems having installed the basic universal frame on the top plate. 4) Space saving: Reduced storage space for motherboard fixtures.
Usable with probe-cards up to 290mm diameter Adjustable to probe-card-diameters greater than 290mm. Adjustable to test-systems of different manufacturers.
Handling: After the installation of a basic frame on the top plate of the test-system, different probe-card set-up kits can be changed easily in three steps. 1) The respective insert ring and motherboard will be inserted in the basic frame. 2) The probe-card will be inserted. 3) The frame will be closed , and driven down pneumatically. 4) If it becomes necessary to adjust the needles of a probe-card the complete fixture can be turned 180 ° together with the movable plate of the test-system.
Different probe-card / motherboard examples:
2) Example For Agilent / Verigy Probe-Card. Frame Closed, Motherboard Not Inserted