ESD Help Desk
If static control solutions are what you seek, then look no further than Compliance Engineering's ESD Help Desk. In this column, experts provide answers to your questions about electrostatic measurement equipment, static-shielding packaging materials, ESD grounding of cabinets and shelves, and so forth. Click on the links below to browse past questions and answers.
Understanding
Models is Key
Understanding the difference between the human body model,
the machine model, and the charged device model is key to designing
an ESD control program.
Resistance
or Restivity?
The terms resistance
and resistivity
provide us with indications of a material’s static-control
performance and a way to describe materials based on their resistive
properties. This column explains the important differences between
the two terms.
Labeling ESD-Protective
Bags
Using proper labeling procedures can ensure that an ESD-sensitive
device will be protected up to the point when it is removed from
the ESD-protective bag by the customer.
Exploring the History
of ANSI/ESD S20.20
In the past, no global standard existed for managing
ESD within manufacturing facilities. The ANSI/ESD S20.20
standard provides a formal, consistent process for OEMs,
suppliers, and contractors.
Implementing and Certifying
an ESD Control Program
The difficult tasks of implementing and certifying an ESD control
program have been made more straightforward and more consistent,
thanks to ANSI/ESD S20.20.
Grounding and Packaging for ESD Control
Proper grounding and packaging practices are essential for effective ESD control.
Protecting PCBs from ESD
By concentrating on four basic concepts, it is possible to find simple, focused solutions for controlling ESD.
Going Beyond Color in Static Control
Leaving static control to visual inspection can lead to problems, and clear definitions are essential for troubleshooting electrical events.
Where to Go for ESD Information
Information on procedures for controlling ESD is readily available.
Understanding the Resistivity of Materials
Knowing the resistance ranges for different types of materials is critical to solving ESD problems.
ESD Compliance for Class 0 Components
ESD sensitivity of a component can be derived from various classification models, but these sensitivity levels are guidelines only.
Keeping ESD in Check
Read on for tips on grounding carts and for a helpful source in obtaining ESD sensitivity data on microhybrid electronic components.
Putting Static Control Flooring to the Test
Proper assessment of flooring materials is critical to providing ESD protection for specific applications.
ESD-Sensitive Products: How to Package Them Properly
Several factors should be considered to ensure the protectiveness of packaging materials.
Specifying Electrostatic Measurement Tools
With many instruments available for program evaluation, how does one choose effectively?
Electrostatic Discharge
Some static-generating items must be used in our ESD-protective areas. How can we provide static protection under these circumstances?
Electrostatic Discharge
If unsealed concrete has a resistance in the 1.0 x 108 range and dusting is not a problem, can this be considered a static control floor?
Electrostatic Discharge
What is the best method to ground painted metal shelving and cabinets?
Electrostatic Discharge
We have just implemented a static control program. How often should the facility be audited? What other factors need to be considered in auditing our program?
|
