esd保護(hù)設(shè)計(jì)研討會(huì)(英文)-wenkub
2023-02-14 10:54:46 本頁面
【正文】 8Human Body Model (HBM)4 Discharge from 100pF capacitor through kOhm resistor4 6 ESD pulses 3 positive, 3 negative 1 sec separation4 Pintopin testing N(N1)/2 binations4 Used for ponent characterization4 Widely usedCalifornia Micro Devices 2023/3/4 下午 01:54:38 9HBM Current WaveformRise Time: 2 nS Tr 10 nSCalifornia Micro Devices 2023/3/4 下午 01:54:38 10IEC 100042:1995 Standard4 Discharge from 150 pF capacitor through 330 ohm resistor4 6 ESD pulses 3 positive, 3 negative4 Used for system characterization4 “Contact” v. “Air” discharge Different levels Different applicationsCalifornia Micro Devices 2023/3/4 下午 01:54:38 11IEC 100042 Current WaveformVery fast rise time: Tr 1nS60nsCalifornia Micro Devices 2023/3/4 下午 01:54:38 12IEC 100042 Test Levels4 Contact discharge is the preferred test method air discharges are not repeatable4 Air discharges used where contact discharge cannot be applied4 No implied equivalence in test severity between the two test methodsCalifornia Micro Devices 2023/3/4 下午 01:54:38 13IEC 100042 Bench Test SpecificationCalifornia Micro Devices 2023/3/4 下午 01:54:38 14ESD Protection Techniques4 Clamp diodes in IC Not sufficient protection 4 Shielding Low effectiveness4 Bypass capacitor or series resistor/inductor Can degrade signal。 many ponents。 large board area4 Di
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