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EUROSTAT, ESD EXPERTS
















 PIONEER IN THE  PROTECTION OF






 ELECTROSTATIC  DISCHARGES





                     WHAT ARE ELECTROSTATIC DISCHARGES?











                     All materials are composed of         In order to avoid those damages, it is necessary
                     atoms. Each atom is composed          to implement the protective measures aiming
                     of a positive charge, around
                                                           elimination of all static electricity sources and
                     which gravitate many negative
                                                           consequently, prevention of the electrostatic
                     electrons. At rest, positive nucleus
                                                           discharges. Nevertheless, if the static discharges
                     charges are equal to the sum of
                     negative charges of the electrons     appear, Eurostat has developed a whole range of
                     that gravitate around them. The       materials and products, providing the protection for
                     charge is therefore remains neutral.   electrostatic sensitive devices such as PCBs.
                     Static electricity is a phenomenon
                     which happens when two surfaces       Conductive
                     contact each other and are then       Allows a rapid discharge to ground that
                                                                                                     Grounding
                     separated. It’s at this moment that   can have the same eΩect as an ESD        resistance less
                     an exchange in electrons between      discharge. These materials insure a bond     than
                                                           with ground but do not mitigate the energy   Rg < 1 x 10  Ω
                                                                                                            4
                     both surfaces can occur. At this
                                                           exchanged during a discharge.
                     moment occurs a movement of
                     electrons that creates charges at     Dissipative                               Grounding
                     the surface of both materials.        Allows a slower discharge from the charge   resistance is
                                                                                                             4
                                                           carrier to the ground, reducing the risk of   between 10  <
                     This exchange of electrons between                                             Rg < 1 x 10  Ω
                                                                                                            11
                                                           potential damage.
                     conductive materials (and man
                     made materials) can occur suddenly,
                                                           Insulative                                 OΩer no
                     creating an electrostatic discharge                                            grounding of
                                                           OΩer  no  grounding  of  electrostatic
                     with irreversible damage, especially   charges.                                electrostatic
                     to electrical components.                                                       charges Rg
                                                                                                     > 1 x 10  Ω
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