Technology 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.

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.

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 today’s 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 today’s 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.

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 90’s, an era where the electronics components were simpler and the PCB assemblies were not so dense and complicated.

Problems of using traditional technology

While traditional technology was widely used till recent times they definitely had many pain areas, such as –

  1. 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.
  2. 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.
  3. 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.
  4. Traditional ESD matsand 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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