FP Circuits Ltd

Full Prosperity Circuits Limited
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Double-sided flex section

Double-sided flexible printed wiring contains two conductive layers with plated through-holes, with or without stiffeners (see Figure above). They can also be fabricated without plated through-holes, though the plated through-hole variation is more common. When constructed without plated through-holes and with connection features accessible from only one side, the circuit is defined as a Type 5 according to military specifications. It is not a common practice, but it is an option.

Because of the plated through-hole, terminations for electronic components are provided on both sides of the circuit, allowing components to be placed on either side. Depending on design requirements, double-sided flex circuits can be fabricated with protective coverlayers on one, both or neither side of the completed circuit. While possible, omission of a protective cover film or coating for the circuits rarely occurs.

Double-sided flexible PCB can be divided into 4 categories according to plated holes and coverlayer:

double-sided flex

  1. With PTH and coverlayer
  2. Without PTH or coverlayer
  3. With coverlayer, without PTH
  4. With PTH, without coverlayer

Double sided flex pcb without cover layer is seldom used

Double-Sided Flexible PCB Features:

  1. Two conductive layers
  2. Component assembly available on both sides
  3. Fingers are an integral part of the conductor patterns

Contact details

  • Sales Office Address: F905,2 Block,Fengcheng Garden, Dayang Road, Bao'an, Shenzhen, China
  • Factory Address: 6# Building of Huafeng Park, Dayang Road, Bao'an, Shenzhen, China
  • Phone: +86 0755 3288 5968
  • Skype: fpcbinc.sales

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