Spring loaded clamps to maintain contact pressure between device and base.
IMFET Test Fixtures
Altair Microwave IMFET test fixtures are available in a variety of sizes with operating frequencies up to 26 GHz. The T-1256 pictured has a built-in heatsink and cooling fan.
IMFET Test Fixture Features
Automatic DUT width compensation
Grounding right under the DUT leads on the side of the package
Clamping force preset to remove operator influence
Height adjustment for DUT lead tolerance variations
Clamps that do not mark the device
Clamps press down close to middle of device to prevent package bowing and give good thermal contact
