公开(公告)号：JPH0650988A

公开(公告)日：1994-02-25

申请号：JP13837993

申请日：1993-06-10

Applicant: CASCADE MICROTECH INC

Inventor： KENISU RADARITSUKU SUMISU ,  KEE RIIDO GURIISON ,  JIEFURII ARAN UIRIAMUZU ,  ROORA ROREIN SUPAAGAA

IPC: G01R1/06 ,  G01R1/067 ,  G01R31/02 ,  H01R11/18 ,  H01R13/03

Abstract: PURPOSE: To obtain a returning unit for a high frequency probe apparatus capable of electrically connecting a signal probe to a ground probe and holding with reliability therebetween even if the distance between the signal probe and the ground probe is changed. CONSTITUTION: This returning unit 20 comprises a sheet-like conductive strap 25 for connecting the conductor of a signal probe 22 to the conductor of a ground probe 24, wherein the first end 52 of the strap is connected to the conductive clad 38 of the signal probe with conductive adhesive 58, and connected by inserting the ground probe into the winding of the second end 54 of the strap 25 having self-windability. The number of turns is automatically increased or decreased at the end 54 of the strap 25, the distance between both the probes can be simply altered, and hence the returning circuit of the probe 22 to the probe 24 maintains the reliable electric connection. Even if the distance between both the probes becomes excessive, the end 54 of the strap 5 is automatically removed from the ground probe, and hence the probe or the other is not damaged.