Paradigm Shift of ESD Technology in Defence

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Paradigm Shift of ESD Technology in Defence
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• Electro-static charge is an invisible menace that
  lurks inside your electronics production areas,
  including zones dedicated to Research and
  Development, Manufacturing, Testing and Storage
• Very simply, Electro-static charge accumulated on
  the work surface area damages electronic PCB
  assemblies and microprocessors, memory chips and
  other high impedance components which come in
  contact with it.
• We need highly efficient Electro-static
  dissipative surfaces and work areas where these
  sophisticated electronic components are used.

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• Defence microelectronics is very demanding in
  terms of the complexity and density of the
  microprocessors and high impedance circuitry in
  the PCG hardware. The constant evolution of
  warfare tactics has led to massive restructuring
  of radar, telematics, propulsion and many other
  systems used in varied military and space
  applications. If compared to their earlier
  versions, these systems are now more refined,
  compact and include highly sophisticated
  electronics. This intricacy and miniaturization
  of electronic components has made them more
  susceptible to ESD damage during any phase of
  manufacturing or testing.
• Electro-static accumulated charge, can damage and
  destroy intricate construction of todays
  miniature electronic components and render them
  useless. Apart from causing varying degrees of
  inconveniences to the customer, failure of an
  electronic component in critical applications
  like telematics of a missile or space shuttle,
  radar system of a tank or submarine in the field
  might result in loss of lives. Industry estimates
  mention 8 to 33 losses as a direct result of
  Electro-static damage. Thus, non dissipated
  Electro-static charge, imposes an unacceptably
  high cost to the bottom-line and addressing these
  issues is imperative for any defence and space
  related organization.
• Electro-static Prevention and ESD Protection are
  thus vital to improving reliability and reducing
  defects in todays defence electronics
  manufacturing facility. The good news is that
  Electro-static prevention and control is easy and
  sustainable with the advent of new technology
  that is driving managers to use fail-safe ESD
  products in their assembly, manufacturing and
  testing tables and stations.

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Traditional technology used to enable
Electro-static Discharge (ESD)

• What is traditional ESD technology?
• Products such as ESD matting on workbenches,
  chairs fabric coated with ESD sprays are
  presently used in defence areas where
  semiconductor and PCB assembly and testing is
  carried out for electronic products to be used in
  applications related to radar testing, missile
  manufacturing, missile electronics testing etc.
• These traditional ESD measures enable the working
  area surfaces to be dissipative, but not with the
  same efficiency and reliability that we will
  describe in the forthcoming paragraphs New ESD
  technology .
• The traditional methods of ESD mats and ESD
  sprays were OK till the 90s, an era where the
  electronics components were simpler and the PCB
  assemblies were not so dense and complicated.

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Problems of using traditional technology

• While traditional technology was widely used till
  recent times they definitely had many pain areas,
  such as
• Products using traditional technology are
  susceptible to frequent failures and thus need to
  be monitored on a regular basis. This requires
  allocation of resources and thus reduces
  productive time of employees.
• ESD mats which are placed on top of a regular
  table often wear out within 6-7 months due to
  usage and need timely replacement. This increases
  the cost and also poses a danger of working with
  non-ESD safe work surfaces when the ESD mat has
  reached the end of its life cycle.
• ESD or Anti-static sprays, commonly used on chair
  surfaces to make them ESD safe do not last long
  as their ESD properties wear out quickly, mostly
  within a few months and then the customer is
  exposed to working with ESD unsafe chairs and
  work surfaces.  If there is an accumulation of
  Static electricity, it can lead to major damages
  to the electronics being tested or assembled.
• Traditional ESD mats and ESD chair fabrics cannot
  be cleaned because any cleaning method will
  partially or completely destroy the ESD
  properties. The table mats and chairs have to be
  kept just as they are and the production and
  testing set-up may not look very tidy and clean.

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What is new age ESD technology?

• New age ESD technology involves use of Volumetric
  ESD products for both the table and chairs. This
  technology is causing a paradigm shift in how
  managers used to approach ESD safe designs and
  products. With the use of volume ESD, users are
  guaranteed ESD-safe properties for a lifetime.
  Let us understand what exactly Volume ESD is.
• Volume ESD as used on table and shelf tops, means
  embedding carbon polymers along with the base
  material used to manufacture the ESD product.
  This essentially means that with volume ESD, the
  properties for discharging the charge are present
  throughout the volume of the material as compared
  to its presence only on the contact surface in
  traditional technology.
• For instance, Volumetric ESD in workbench is when
  the wooden laminated worktop is integrated with
  conductive carbon polymers, which makes the
  entire worktop conductive with dissipative
  lamination on both the sides of the workstation.
  This is a technology which ensures lifetime ESD
  protection of the workbench.
• In the above image you can see that the worktable
  laminate is embedded with conductive carbon
  polymers with lamination on both sides of the
  workstation, unlike normal wooden worktop which
  is medium-density fiberboard.
• Similarly, this technology can be used to
  manufacture Volume ESD Polyurethane chairs where
  the base material of the seats and backs of the
  chair which is Polyurethane, is embedded with
  ESD particles throughout the volume.
• All the products mentioned above are used in
  making world class ESD work tables and ESD chairs
  which are tested as per IEC 61340-5-1 safety
  standards. These standards are mandatory for use
  in all international quality Electronic
  laboratories and Electronic manufacturing
  facilities.

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Benefits of using new technology

• Volume ESD is beneficial over traditional ESD in
  many ways such as
• It guarantees lifetime fail-safe ESD properties
  of the product which means that the chances of
  ESD failure is negligible. This saves customers,
  costs in repairs, warranties and replacements.
• Even after wear and tear, the ESD properties
  remain homogeneous throughout the material. This
  essentially means that the product, like
  workstation or chair, will have the same ESD
  properties effective throughout. Thus rather than
  concentrating on whether ESD properties of the
  work tables and chairs are working fine, the user
  can now concentrate on his testing and assembly
  and other matters. This improves efficiency and
  productivity and provides a big relief to the
  Production and Testing line managers as now they
  can rest assured that they will have no problems
  with Static electricity.
• The use of unreliable ESD mats is avoided by the
  use of volume ESD technology on the wooden table
  tops. It saves the customer the hassle and
  repeated capital costs of replacing the mat every
  6-7 months.
• Volume ESD products are resistant to regular
  cleaning agents like IPA, Ethanol and other
  chemicals. The products do not lose any ESD
  properties due to cleaning. Thus the work area
  can be kept neat and clean, in turn improving
  employee productivity and motivation.

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Case Study

• A senior scientist, head of Power Electronics
  division of a government Laboratory in Cochin
  talks about shifting from old ESD technology to
  new technology.
• This senior Scientist had issues with
  Electro-static failures during testing of various
  electronic hardware and PCB assemblies. He also
  faced severe productivity issues, as most of the
  employee time was being utilized in wondering why
  the electronic components were failing without
  any reason.
• Our customer, the senior Scientist, wanted to
  make his lab with world-class technology and
  found that by using these new technology products
  for his work tables and chairs, the volumetric
  ESD properties were well worth the investment.
  This new technology guarantees him lower
  Electro-static failures and the improved
  ergonomics of the new ESD chairs improves the
  productivity of his employees.
• Currently, as per the senior scientist, the new
  technology is proving to be worth its value as
  failure rates have dipped to near to negligible
  and productivity has risen by almost 15-20. His
  employees can now concentrate better on their
  work rather than worrying about any
  Electro-static failures.
• Numerous Government labs and defence
  organizations are now updating and equipping
  their labs with new cutting-edge technology
  (Volume ESD) to counter the rising failures due
  to static energy on work surfaces damaging
  critical components.
• Authors Mr. Farook Merchant and Mr. Azeem
  Merchant
• Messung is proud to partner with Defence and
  other sectors to provide world-class workplace
  technology solutions in India. The Messung range
  of Volume ESD laboratory worktables and ESD safe
  chairs as per IEC 61340-5-1 safety standards, is
  designed to eliminate risk of electro-static
  failures and delight users with their smart looks
  and proven ergonomics.

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Thank you.

• Messung Global Connect Pvt. Ltd.
• World Trade Center, Tower B, Office No.
  420,Kharadi, Pune 411 014, India.
• 020 6649 2800  info_at_messung.com

www.messungworkplacetechnology.com