Controlling Static in the Lab

1. Background

We use many electronic components in the ISDL. Many of these - with their small circuit geometries - are sensitive to voltage gradients and electrostatic discharges to the extent that they can be easily degraded and often destroyed by adverse electrostatic environments; this is typically a result of mis-handling.

The issue of Electrostatic Discharge (ESD) looms large in industry where much effort is expended to control and minimize potential damage to products. We need to be aware of, and control, ESD in our Lab since although we are dealing with smaller quantities, the effects of mis-handling can be just as traumatic in terms of time wasted tracing problems due to failed components. Lab schedules are challenging enough without losing time debugging preventable problems.

2. Procedures

When working directly with un-packaged electronic components, always work at one of the work benches equipped with ESD control equipment. This equipment includes a grounded bench mat together with a grounded wrist strap - which you should always wear when handling the parts. Place all parts on the bench mat, not on an un-grounded surface.

When working away from an ESD-equipped work bench, never touch component leads (including those of individual parts, circuit boards and prototype assemblies) unless both you and the part are grounded.

Keep paper, plastic and other (insulating) materials that can harbor static charges away from electronic components.

3. Further Information

Electrostatic Discharge Association

ESD Journal

Electrostatics Society of America

Journal of Electrostatics

ElectroStatics, Inc.


	Department of Computer Science & Engineering University of Washington Box 352350 Seattle, WA 98195-2350 (206) 543-1695 voice, (206) 543-2969 FAX [comments to hardware-lab@cs.washington.edu]