US 11,927,605 B2
Interconnect system with high current and low leakage capability
Gregory Sobolewski, Brecksville, OH (US)
Assigned to Keithley Instruments, LLC, Solon, OH (US)
Filed by Keithley Instruments, LLC, Solon, OH (US)
Filed on May 28, 2020, as Appl. No. 16/886,229.
Claims priority of provisional application 62/858,291, filed on Jun. 6, 2019.
Prior Publication US 2020/0386790 A1, Dec. 10, 2020
Int. Cl. G01R 1/36 (2006.01); G01R 1/20 (2006.01); G01R 1/24 (2006.01)
CPC G01R 1/36 (2013.01) [G01R 1/206 (2013.01); G01R 1/24 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A test and measurement instrument switch matrix, comprising:
a first triaxial cable including a center conductor and a guard, the center conductor connected to a first output of the test and measurement instrument;
a second triaxial cable including a center conductor and a guard, the center conductor connected to a second output of the test and measurement instrument;
a third triaxial cable including a center conductor and a guard, the center conductor connected to the device under test;
a fourth triaxial cable including a center conductor connected to the device under test and a guard connected to the device under test;
a first guard switch to connect the guard of the first cable to the first output;
a second guard switch to connect the guard of the first cable to a first guard signal;
a third guard switch to connect the guard of the second cable to the second output; and
a fourth guard switch to connect the guard of the second cable to a second guard signal.