Increased Need for ESD/EOS Training, Audits and · PDF filestringent ESD Control Program...
Transcript of Increased Need for ESD/EOS Training, Audits and · PDF filestringent ESD Control Program...
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Increased Need for ESD/EOS Training,
Audits and Compliance
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Device Susceptibility
Typical figures for susceptibility of devices to ESD damage
Adapted from http://philipstorr.id.au/pcbook/book5/esd.htm
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The ESD Impact in MFG
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ESD/EOS Definition
• ESD – Electrostatic Discharge
• EOS – Electrical Overstress
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ESD Spec
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What Does 20.20 Say?
This standard covers the requirements necessary to design, establish, implement, and maintain an Electrostatic Discharge (ESD) Control Program for activities that:
– Manufacture, process, assemble, install, package, label, service, test, inspect or otherwise handle electrical or electronic parts, assemblies and
– Equipment susceptible to damage by electrostatic discharges greater than or equal to 100 volts Human Body Model (HBM).
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20.20 States
• We have to be careful when handling devices susceptible to less than 100 volts HBM, as more stringent ESD Control Program Technical Requirements may be required, including adjustment of program Technical Element Recommended Ranges.
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20.20 States
This document covers the control program requirements and offers guidance to protect and handle ESD sensitive (ESDS) items, based on the historical experience of both military and commercial organizations.
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Overview – Administrative Requirements
• Each facility shall have a control plan which describes the scope of the program – Includes a training plan – Establishes a compliance
verification plan
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Overview – Technical Requirements
• Grounding and Bonding Systems • Personnel grounding • Protected areas • Packaging • Marking • Handling
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Reference Material
• MIL-HDBK-263 – This document in Appendix K has
the ESD damage Prevention checklist which can be used to audit the area in question
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Examples of Static Electricity
• Lightning • The Zap felt when touching a door
knob • Static sensitive hair and clothing
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Definitions
• Conductors are materials that transfer electrons easily
• Insulators are materials that do not transfer electrons easily
• Both can become charged with static electricity.
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Insulators
• Insulators like this plastic cup will hold the charge.
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Typical Electrostatic Voltages
Vinyl envelop for work instructions 600 to 7,000 Volts
Picking up a plastic bag from a bench 1,200 to 20,000 Volts
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IC Damage Illustration
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Cost of ESD Damage
• Reduce company’s profitability • Affect profit sharing • Company’s ability to compete in
the market place
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Basics of ESD Control
• Grounding • Isolation • Neutralization • Prevention • The most Critical is YOU
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Prevention
• Know when you are working with possible ESD sensitive devices
• When working with ESD sensitive devices make sure you
Ground Isolate
Neutralize
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Thank You
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Further Information
For questions regarding this webinar, please contact Leo Lambert at [email protected]
For information on any of EPTAC’s or IPC’s Certification Courses, please visit our website at
http://www.eptac.com