Patent ID: 7404717
Filing Date: 2008-07-29
Classification: G01R,H01R

Abstract:
1. A contactor comprising: a contact spring having a leg portion, a body portion and a tightly twisted neck portion adapted, for current conduction, to directly contact on an electrical contact of a device under test; a holder having a reception hole from which the leg portion and the neck portion may project and the body portion inhibited from coming out at both ends thereof; a float type guide plate having a guide hole configured for the neck portion to be slidably inserted therein at one end thereof and for the electrical contact of the device to be fitted therein at the other end thereof; and a support spring interposed between the holder and the guide plate, supporting the guide plate free from a spring load of the contact spring, wherein the holder bears a spring load of the contact spring, and the holder and the guide plate bear a spring load of the support spring so that the support spring provides a biasing pressure to the guide plate, thereby controlling force applied to the device under test by the guide plate contacting therewith, at different biasing pressures from a biasing pressures applied by the neck portion of the contact spring directly contacting on the electrical contact of the device.