Bonding, static discharge

Fragility Devices in the chip form are susceptible to mechanical handling, static discharge, and corrosion as a result of contamination. In addition, the wire bonds require only a few grams of force in the normal direction to fail. 

Conveyors and machinery, including pulleys, guards, and other metallic components, must be bonded and grounded to prevent static discharges. Belts should be made of a conductive material, have a conductive coating, or have a grounded static collector just beyond the point at which the belt leaves the pulley. 

Bond and ground all cylinders and equipment used with flammable compressed gases to prevent ignition from static discharge (see Section 16.3). 

This accident points out the need for carefully reviewing systems before, during, and after modifications are made. Open lines should be blanked-off when the discharge of flammable vapors is possible. Also, proper grounding and bonding techniques must be used to prevent static buildup. 

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