Patent ID: 11860190
Assignee: KABUSHIKI KAISHA NIHON MICRONICS
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A probe unit comprising:
a coaxial connector that is attached to a main body and gives and receives an electrical signal to and from a tester via a coaxial cable;
a high-frequency conducting path that is connected to the coaxial connector and transmits an electrical signal;
a plurality of contactors, each having a tip portion at a distal end that makes electrical contact with an electrode of an object to be inspected to transmit an electrical signal to the electrode from the high-frequency conducting path and from the electrode to the high-frequency conductive path; and
pedestals interposed between said contactors and the high-frequency conducting path,
wherein the pedestals are each joined to the high-frequency conductive path and fixed to a respective one of said contactors,
wherein a free length of each of the contactors extends from the distal end of the respective contactor to a position at which the respective contactor is fixed to one of the pedestals, and
wherein the free length of each of the contactors is a constant predetermined length to eliminate variations in pressure applied by the contactors to the electrodes of the object to be inspected.