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What is ESD?
Views: 1158 Jan 26 , 2018
Electrostatic Discharge is a high
voltage event from the release of electrical energy caused by static
electricity or electrostatic induction. ESD can cause permanent damage to
electronics and integrated circuits.
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Two Causes of ESD
Views: 1303 Jan 25 , 2018
Static
electricity is One of the causes of ESD events. Static electricity is
often generated through tribocharging, the separation of electric charges that
occurs when two materials are brought into contact and then separated. Examples
of tribocharging include walking on a rug, rubbing a plastic comb against dry
hair, rubbing a balloon against a sweater, ascending from a fabric car seat, or
removing some types of plastic packaging. In all...
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What is Electrostatic discharge?
Views: 1275 Jan 24 , 2018
Electrostatic
discharge, which
shorted for ESD, is the sudden flow of electricity between two
electrically charged objects caused by contact, an electrical short, or
dielectric breakdown. A buildup of static electricity can be caused by
tribocharging or by electrostatic induction. The ESD occurs when
differently-charged objects are brought close together or when the dielectric
between them breaks down, often creating a visible...
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How to prevent ESD damage in electronics
Views: 1193 Jan 22 , 2018
Prevention
of ESD bases on Electrostatic Protective Area (EPA). EPA can be a small working
station or a large manufacturing area. The main principle of an EPA is that
there are no highly charging materials in the vicinity of ESD sensitive
electronics, all conductive materials are grounded, workers are grounded, and
charge build-up on ESD sensitive electronics is prevented. International
standards are used to define typical EPA and can be found for...
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Markets and Industries Using Conductive Foams
Views: 1307 Jan 19 , 2018
Handheld
Electronics
Portable data
acquisition & ruggedized devices
Medical devices
Displays (LCD
and PDP)
Antennas and telecommunications
LED lighting
Asset
tracking
Industrial
equipment
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Common Applications for Electrically Conductive Foam
Views: 1215 Jan 17 , 2018
Electrical
contacts for PCBs
Electrical
coupling in handheld electronics
Sensors
and electrical connectors
EMI
shielding for enclosures
LCD
gaskets
ESD
sensitive manufacturing
Dust
sealing
Shock
and vibration absorption
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Three types of foam for the five following broad usage:
Views: 1136 Jan 16 , 2018
1. Bare populated boards with no battery. Single-use: Anti-static (pink)
inside of a silver conductive bag. Multi-use: Conductive (black) foam.
Alternately you can use static dissipative (black) foam inside of a conductive
container/faraday cage.
2. Battery cells: Single-use: Anti-static (pink) inside of a silver
conductive bag. Multi-use: Static dissipative (black) foam inside...
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Where Are Conductive Foams Useful?
Views: 1199 Jan 11 , 2018
Air gaps in assemblies or between features may exist due to manufacturing tolerances or thermal warping; conductive foam can be used to fills these spaces and electrically couple surfaces. Using a conductive foam to fill gaps provides EMIshielding, dust sealing and forms a protective environment for susceptible electronics.
Differences in electric potential between two bodies can result in the build-up of static and...
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Surface Resistivity & Surface Resistance
Views: 1444 Nov 28 , 2017
Do you know the
difference between surface resistivity and surface resistance? Although there
has been a lot of discussion centered around these parameters, they are
probably some of the least understood in the ESD industry. ESD practitioners
need to have a clear understanding of what the differences are to make informed
material selections in their work environments.
Let’s start with the
basics. Surface resistivity in ohms/square is used...
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What is conductive foam?
Views: 11660 Nov 23 , 2017
Conductive foam is similar to standard packaging foams but with
one crucial difference – the addition of carbon to the polymer mix during the
manufacturing process to provide a high level of conductivity. This allows any electric current to pass through the cell
structure of the foam and away from the component. Generally, the foam will have permanent conductive performance,
meaning it is ideal for multi-trip...
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The Causes of ESD Effect
Views: 1469 Nov 16 , 2017
The Causes of ESD Effect
Electrostatic
discharge (ESD) is the
sudden flow of electricity between two
electrically charged objects caused by contact, an electrical short, or dielectric breakdown.
One of the causes of
ESD events is static electricity. Static electricity
is often generated through tribocharging,
the separation of electric charges that occurs when two...
Read More