Storing and handling of electronic elements


Today electronic elements are very durable. Usually it takes lots of efforts to destroy one ... is that really so!?
Take your time with the following lines and you will have a better understanding about the safe handling and storage of electronic elements and devices

- Keep track of what you do.
First thing to organize in your lab, are your ideas. This will save you lots of time and effords with any project you begin. The good thing is that you do not need space for ideas - your computer is there to help.

- Decide which elements to keep and which to throw away.
No matter the space you plan for your lab, it will never be enough. So, do not keep all the old devices and elements you might have. Trust your imagination about what will be useful and can have a new application.

high voltage
Safe CMOS handling
Most constructors know that CMOS ICs need careful handling but some, especially beginners, may not know just what may cause damage and what precautions to take. Certain components can be damaged by high voltage static charges. It is easy for these to occur without evidence of their presence, because they are generated by friction between insulating materials, and because so many different plastic materials with very low conductivity are in common everyday use. For instance, if I walk across the nylon carpet from the door of my study to the desk, I can accumulate a static charge of several hundred volts. It has been said in relation to humans that it is the current that kills, and you may have seen demonstrations in which sparks can be drawn from a person who has been charged from an electrostatic generator. But it is the voltage which is lethal to electronic devices.

These precautions are good ways to avoid damage to MOS transistors, RAM chips, Processor and other ICs

- All CMOS devices should be stored or transported in materials that are antistatic. CMOS devices must not be inserted into conventional plastic ‘snow’, styro foam, or plastic trays, but should be left in their original container until ready for use.

Safe grounding electronics
- All CMOS devices should be placed on a ground bench surface and operators should ground themselves prior to handling devices since a worker can be statically charged with respect to the bench surface. Wrist straps in contact with skin are strongly recommended.

- When lead-straightening or hand-soldering is required, provide ground straps for the apparatus used and be sure that soldering ties are grounded.

- Nylon or other static generating materials should not come in contact with CMOS devices.

- If automatic handlers are being used, high levels of static electricity may be generated by the movement of the device, the belts or the boards. Reduce static build-up by using ionized air blowers or room humidifiers. All parts of the machines which come into contact with the top, bottom, or sides of IC packages must be grounded to metal or other conductive material.

- Do not insert or remove CMOS devices from test sockets with power applied. Check all power supplies to be used for testing devices to be certain there are no voltage transient present.

Sources used:
http://baec.tripod.com/DEC90/comp.htm
http://www.circuitstoday.com/how-to-protect-cmos-devices-and-ics