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Common electrostatic-sensitive devices include: 1  MOSFET transistors, used to make integrated circuits (ICs). 2  CMOS ICs (chips), integrated circuits built with MOSFETs. 3  Examples are computer CPUs, graphics ICs. 4  Computer cards.
The best way to compare the clamping voltages of protection diodes is to take an oscilloscope screenshot of the actual voltage waveform across the diode during an ESD event. This is accomplished using a test setup (see Figure 2).his article will explain the key steps involved in selecting effective ESD protection. ESD waveform. The most commonly used waveform for defining a typical ESD event at the system level is the IEC61000-4-2 waveform which is distinguished by its sub nanosecond rise time and high current levels (see Figure 1).