Semi-Auto ESD Tester

  • Product No:Model 400S Series
  • Manufacturer:Tokyo Electronics Trading Co. Ltd.

Model 400S allows zapping HBM or MM ESD stress to various shape DUT, then automatically detect damage or degradation by very little programming. Even designer simply tests the ESD performance of a new design any time.


  • ESD Performance Test from Wafer to package

  • Process Monitoring by periodical wafer test

  • Allows correlation test between die location and ESD performance

  • Multiple return allows ESD current path verification

  • Enables rapid ESD performance test of new devices

  • Decreases device development time


1. Source Measure unit/Damage criteria

Polarity : Positive, Negative

Force Voltage

Range : 0 to 30V

Digits : 3

Minimum Step : 10mV

Tables: 4 tables (Vf-A to Vf-D)

Current measurement

Range : 0 to 200mA

Digits : 3

Resolution : 10nA (*)

Averaging : 1, 2, 4, 8, 16, 32 times

Start Range : 1, 10, 100, 1000μA

Limiters : 2, 20, 200mA

Sample points : 1 to 91 samples

Measurement speed : Fast/slow

Damage detection points : 1 to 10 points

Damage criteria : Initial current * (1 to 100)%

+ (100nA to 1mA)

2. ESD pulse

Polarity : Positive and Negative

Period : About 1 sec

Repetition : 1 to 100 times

Charge Removal : Supported

Zap voltage

HBM: 0 to 400V/5Vstep

400 to 4000V/50V step

MM: 0 to 400V/5V step

400 to 4000V/50V step

Accuracy : 1% of setting±5V

Waveform: MIL, JEDEC, JEITA, others

3. Test Program

Semi-auto test

Automatic test

V/I curve measurement

ESD zapping