Circuit of a mobile phone looks like general circuit but the parts in printed circuit boards (PCB) of mobile phone
are different from normal thru-hole electronic components. These
electronic components are known as surface mount device or surface mount
electronic components.
These SMD electronic components on the
PCB of a mobile cell phone generally do not have any leads. Components
that have leads are bent in a manner that they can be mounted only on
the surface of the PCB and hence the name “Surface Mount Device”. Most
of the electronic components on the PCB of a Mobile Cell Phone are BGA
or Ball grid Array Packages.
SMD Components of Mobile Phone PCB
What is SMD or Surface Mount Device or Surface Mount Electronic Component?
Surface mount devices of SMD are
electronic components that are easily soldered or mountable on the
surface on the PCB. Most of these PCBs are multilayered PCB which means
these PCB have more than one layer. The technique of soldering or
utilizing SMD components is called SMT (Surface Mount Technology).
What are Advantages of SMD?
SMD type electronic components offer
many advantages. The main advantage is that they are space saving. The
size of mobile phones has been significantly reduced because of the use
of SMD components. SMD components use less electricity and voltage loss is also very less.
Uses of SMD Electronic Components?
Presently SMD of Surface Mount Devices
are used in ultra modern electronic equipments like mobile cell phones,
computers, laptops tablets etc. all the components used in Surface Mount
Technology are mostly in the form of chips or IC (Integrated Circuit).
These chips or ICs are classified into different categories depending of
the type of legs or leads they have and their function. These
components are mounted directly at the specified location on the copper
track of the Printed Circuit Board using Surface Mount Soldering Technology.
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