Probe holder for a probe for testing semiconductor components
View Patent ↗A probe holder in which the probe needle has a slight horizontal offset under the action of a vertical force, includes a probe holder for a probe needle, wherein the holder is adapted, for fastening and electrical contact-connection, on a carrier device of a test apparatus and has a holder arm having a needle holder at the free end thereof to fasten the probe needle, and a fastening arm for connecting the probe holder to the carrier device. The holder arm and the fastening arm are connected to one another by an articulated joint, whereby horizontal offset of the needle tip on account of external forces can be reduced or even prevented by increasing the radius of the yielding movement of the probe needle.
1. A probe holder for a probe needle, said holder being adapted, for fastening and electrical contact-connection, on a carrier device of a test apparatus and having a holder arm having a needle holder which is arranged at a free end of the holder arm to fasten the probe needle, and a fastening arm for connecting the holder arm to the carrier device, and wherein the holder arm and the fastening arm are connected to one another by a sole articulated joint such that a tip of the needle travels along an arcuate path about a pivot point on the joint in response to a vertical force.
2. The probe holder as claimed in claim 1 , wherein the articulated joint comprises at least one flexurally soft solid element, one end of the element being connected to the holder arm and an other end of the element being connected to the fastening arm.
3. The probe holder as claimed in claim 1 , wherein the articulated joint comprises at least one elongate connecting element, one end of the element being connected to the holder arm and an other end of the element being connected to the fastening arm.
4. The probe holder as claimed in claim 1 , wherein at least one spring element for generating a restoring force is also provided on the articulated joint.
5. The probe holder as claimed in claim 1 , wherein the articulated joint is arranged beneath the holder arm and the fastening arm.
6. The probe holder as claimed in claim 1 , wherein the articulated joint is arranged at a vertical distance from the holder arm.
7. The probe holder as claimed in claim 6 , wherein the vertical distance between the articulated joint and the holder arm corresponds approximately to a vertical distance between a tip of the probe needle and the holder arm.
8. The probe holder as claimed in claim 1 , wherein the articulated joint comprises a metallic material.
9. The probe holder as claimed in claim 1 , wherein the articulated joint comprises a polymer.
10. The probe holder as claimed in claim 9 , wherein the polymer is electrically conductive.
11. The probe holder as claimed in claim 9 , wherein the articulated joint has electrically conductive paths.