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ESD Tests

ESD Tests

ESD tests are designed to confirm and evaluate various ESD resistance factors for the purpose of ESD accident prevention and management.

  • We offer ESD testing compliant with official national and international test standards (table 1).
  • We welcome questions regarding test standards and also recommend a test plan in accordance with the volume of samples.
  • We offer manufacture of special test boards (Figure 2, Figure 4) required by the test equipment (Figure 1, Figure 3).
  • 70 general-purpose HBM/MM test boards and 30 CDM test boards are readily prepared. Manufacture of test boards won't be neccessary if our client's test device packages fit to our existing boards.
  • Manufacture of boards require sockets. If not in hands, we can arrange everything from order to delivery.

Table 1. ESD Test Standards

Test Method Standard Reference Essential Test Conditions
Japan United States Europe
General Automotive
HBM: Human Body Model JEITA ED4701 300-2 JESD22- A114F
ESDA STM 5.1
AEC-Q100-002 IEC 61340 3-1
  • Discharge capacity = 100pF, discharge resistance = 1.5kΩ
  • Number of applied pulses: bipolar 1 each
  • Sample count: 3 x test voltage x applicable combinations
MM: Machine Model EIAJ ED4701-1 (1994) JESD22-A115A
ESDA STM 5.2
AEC-Q100-003 IEC 61340 3-2
  • Discharge capacity = 200pF, discharge resistance = 0Ω
  • Number of applied pulses: bipolar 1 each or 3 times
  • Sample count: 3 x test voltage x applicable combinations
Charged Device Model Direct CDM JEITA ED4701 300-2 ESDA STM 5.3.1 AEC-Q100-011 IEC 61340 3-3
  • Device-dependent discharge capacity and resistance
  • Number of applied pulses: bipolar 1 each or 3 times
  • Test environment temperature: room temperature
  • Sample count: 3 x test voltage
Field Induced CDM EIAJ ED4701-1 (1994) JESD22-C101D
ESDA STM 5.3.1
AEC-Q100-011 IEC 61340 3-3
  • HBM/MM/Latch-up tester
    Image 1. HBM/MM/Latch-up tester
  • HBM/MM/Latch-up test board
    Image 2. HBM/MM/Latch-up test board
  • CDM tester
    Image 3. CDM tester
  • CDM test board<
    Image 4. CDM test board

HBM, Human Body Model:
Phenomenon of device damage by electrostatic discharge (ESD) accumulated in the human body.
MM, Machine Model:
Phenomenon of device damage by electrostatic discharge (ESD) accumulated in metals, etc.
CDM, Charged Device Model:
Phenomenon of device damage by electrostatic discharge (ESD) when directly or indirectly charged as terminals and conductors with different electric potential get in contact.

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