As items, either electronics assemblies, or tools may be placed here the shelves need to be part of the ESD protected area.
#Electronic workbench ideas full
It is necessary that the ESD work bench is able to provide a full protected environment for any electronics assemblies that require work on the ESD work bench. ESD workbenchĪn ESD work bench is one of the central elements within a full ESD protected area for use within an electronics manufacturing or repair facility. This is for two reasons, namely for preventing a rapid discharge of any static that may cause damage, and secondly for safety reasons as mentioned above. (ANSI/ESD S 20.20), but having a lower limit of 1.0 x 10 6 ohms as recommended in ESD-ADV 53.2. Typically an ESD protective work surface should have a resistance value of <1.0 x 10 9 Ω when tested according to ESD S41. Accordingly safety precautions necessitate that a high resistance dissipative surface is used. If high voltages were present in a system, then accidentally touching a conductive work surface and a high voltage source could be dangerous. In order to provide the correct environment for an ESD workstation, an ESD work bench should have a static dissipative surface.Ī further reason for having a high resistance dissipative surface rather than a fully conductive surface is that of safety. In the very unlikely event of the ground connection of the bench becoming live and hence the connections to the wrist straps etc, the high impedance becomes a much safer option.
High impedance leaks charge more slowly: The conductive surface will provide a low impedance discharge path that will give a very rapid discharge, resulting in high currents flowing and possible damage to the circuitry.High impedance prevents short circuits: The conductive surface will short out any connections making operation and testing of the circuit impracticable.However these are far from ideal from two viewpoints:
Original concepts for ESD protected workbenches used conductive surfaces. The key to a operation of the ESD work bench is the surface of the bench. Not only does a typical ESD workbench provide a static dissipative surface on which to work, but it also provides suitable connection points for other elements of the static protected environment.ĮSD workbenches can be obtained from a variety suppliers - a search on Google reveals a large number of manufacturers and suppliers. Although many other elements are needed, having a good ESD workbench is key. The ESD workbench provides many of the elements for the basis of an ESD protected area. The work bench provides the basis for an ESD protected environment.ĮSD Basics How ESD affects electronics components Protecting against ESD ESD protected area ESD workbench ESD work mat ESD wrist strap ESD clothing ESD storage ESD process ESD on a budget Design to combat ESDĪ workbench is the key area for many ESD protected areas. ESD Workbench One key item of any ESD protected area is an ESD workbench.
0 kommentar(er)
