Patent ID: 11867723
Assignee: TECHNOPROBE S.P.A.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A probe head for testing a device under test integrated on a semiconductor wafer, comprising:
a plurality of contact probes, each having a first end and a second end, the first end being configured to contact pads of the device under test;
at least one first lower guide and one second lower guide at the first end of the probes, said first and second lower guides being parallel to each other and having a respective plurality of first and second guide holes for slidingly housing the contact probes, wherein the second guide holes of the second lower guide are shifted with respect to the first guide holes of the first lower guide along a first direction; and
at least one third lower guide, which is substantially parallel to the first lower guide and to the second lower guide and includes a plurality of third guide holes for slidingly housing the contact probes,
wherein the second lower guide is arranged between the first lower guide and the third lower guide, and wherein the third guide holes of the third lower guide are shifted with respect to the second guide holes of the second lower guide along a second direction opposite the first direction, the shift of the third guide holes being configured to eliminate a scrub movement of the first ends of each contact probe of the probe head.