Electronics device need to packed in a safe containers, this make it safe from manufacturers to the consumers. Small components in electronics devices make compulsory to be safe, otherwise it can break or burnt out. It is clear, electrical surge is among the biggest enemy of electronics components, lack of good safe package can cause it.
MECHANICAL SHOCK AND VIBRATION
Any equipment transported or move from one place to
another will be subject to some
degree of mechanical shock &vibration consequently .this will cause:
1. Weakening of
equipment support
2. Loosing wires
and connection s
3. Bend and
possible damage component.
This
promote stress that may lead to component failure due to fatigue.
However it should be noted that mechanical shock and vibration have relatively
little effects on electronics component which are smaller in sizes and can be
protected by encasing in an insulating medium. Elector-mechanical component such
as relay, Transformer and contactor are liable to malfunction due to mechanical
shock and vibration.
Remedy of Mechanical and vibration:
Careful design techniques using anti-vibration mounting.
Using shock prove washers.
Locking nuts.
Encapsulating of sensitive component
with some protecting materials.
EFFECT OF ELECTROMAGNETIC RADIATION:
Due to alpha and beta rays
(especially of a nuclear nature)
Can cause malfunction of certain
component, especially bipolar solid state devices. For a remote surveillance or
control of a nuclear process in space is susceptible or subjected to the effect
of radiation.
Remedy of Radiation:
Provision of shielding.
Proper choice of component for a
equipment design is a worthy solution.
ELECTROSTATIC:
Problem cause
by static discharge occur in the most industries, such as solid state
electronics component. This posses a
great problem both in of handling and manufacturing of separating the silicon
and the metallisation can easily be
destroy by electrostatic discharge.
REMEDY OF ELECTROSTATIC
Eliminating or reduction of static
electricity by earthing all possible
electrostatic electric charge.
Use of electro-conductive foam system
for the protection of electrostatic component and finish product.
A good working diodes is expected to read low
resistance when forward biased and to read high resistance when reverse biased.
