Transmission line pulser discharge circuit

Details Transmission line pulser discharge circuit Transmission line pulser discharge circuit

1997-04-23

1998-09-08

Karlsen, Ernest F.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324676, 324765, 333 20, G01R 2726

Patent

active

058049770

ABSTRACT:
An RF matching network provides matching between a charged first transmission line and a relay circuit which is switched to connect the charged transmission line to one end of a second transmission line to generate a high-voltage, high-current test pulse for a DUT connected to the other end of the second transmission line. A low pass filter section of the RF matching network suppresses transient and ringing signals which might pass through the parasitic capacitance of the relay circuit and which trigger the prematurely trigger the DUT. To remove residual charge after discharging the first transmission line, the transmission line is grounded with a GND relay before leakage tests are conducted to prevent electrically stress of destruction of leakage testing circuitry if the residual charge is not dissipated before testing for leakage. Termination resistors for the first transmission line are made of material, such as ceramic, that will not change characteristics with high current and will not breakdown in the presence of high electric fields.

REFERENCES:
patent: 5410254 (1995-04-01), Consiglio
patent: 5519327 (1996-05-01), Consiglio
N. Khurana, T. Maloney, W. Yeh ESD on CHMOS Devices--Equivalent Circuits, Physical Models and Failure Mechanisms, 1985 IEEE/IRPS.
T.J. Maloney and N. Khurana Transmission Line Pulsing Techniques for Circuit Modeling, 1985 EOS/ESD Symposium.

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