Why Is Copper Used In Printed Circuit Boards? Miracle Aerospace - PowerPoint PPT Presentation

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Why Is Copper Used In Printed Circuit Boards? Miracle Aerospace


Copper is an excellent conductor of heat and electricity. But, is this the only reason why it is used in every PCB? Why isn't any other metal used instead that has the same amount of conductivity? Let’s find out! – PowerPoint PPT presentation

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Title: Why Is Copper Used In Printed Circuit Boards? Miracle Aerospace

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.

  • 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
  • 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.
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