Why Is Copper Used In Printed Circuit Boards? Miracle Aerospace

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Why Is Copper Used In Printed Circuit Boards -
Miracle Aerospace
Printed Circuit Boards or PCBs are the most
popular elements used in electronic devices,
without which electronics cant even function.
These PCBs have thus become a very integral part
of electronic devices. They are compact and
durable to reduce the size of the device,
without compromising on the transfer of signals
throughout the equipment.

• PCBs are increasingly being used in high current
  power devices with electrically conductive
  networks of high current density. For this
  reason, there is one particular characteristic
  that is seen in every PCB assembly from India,
  and that is the usage of copper. A PCB is made up
  of several layers like the substrate, traces,
  soldermask, and silkscreen but the most
  important element used is copper. While we know
  that without PCBs, electronics wont work, and
  that copper can transfer signals well, the
  question that arises here is Why only copper,
  and nothing else? If you have this question
  running through your brain too, let us help clear
  this doubt of yours. In this blog we will tell
  you what makes copper such a popular choice in
  the PCB industry.
• Copper is an excellent electric and thermal
  conductor, thus improving heat transfer along
  and across the PCB, which reduces the damaging
  stress caused by uneven heating of the PCB. The
  stress otherwise may result in micro-fracturing
  of the PCB, and thus device failure. Moreover,
  due to its exceptional electric conductivity, it
  can easily transmit signals without losing
  electricity along its way.

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• Since copper is a great conductor, manufacturers
  of PCB assembly from India dont need to use
  tons of copper. A very small amount of the
  material used can get the job done. Generally,
  only an ounce of copper can be converted into 35
  micrometers, about
• 1.4 thousands of an inch thick, which can cover
  an entire square foot of the PCB substrate!
• In addition, the unparalleled thermal resistance
  of copper and its current carrying capacity used
  in the PCB results in increased reliability of
  the electronic devices that need to be operated
  in even the harshest of environments like extreme
  high
• temperatures. This also increased the mechanical
  resistance of the contact points and plated
  through holes.
• The efficient heat transfer capability of copper
  permits installing classic heat sinks directly
  on the surface. Or, PCBs are built with one side
  of heat generating power
• components, and the other side covered completely
  with a layer of copper, acting as a heat sink.
  In both situations, the device assembly is
  reduced, which in turn reduces the manufacturing
  costs significantly.
• With all the above benefits, there seems to be no
  reason why copper shouldnt be used in PCBs. It
  becomes very clear why copper is the most popular
  choice amongst PCB manufacturers. Miracle
  Aerospace is one such manufacturer of PCB
  assembly from India who delivers end-to- end
  build to print services of µBGA and Surface Mount
  PCB assemblies. Also, here production processes
  are enhanced, and costs lowered by identifying
  alternative parts or production methods for the
  benefit of the clients.