Type II / V Flex Circuit
Double-Sided
Flex Circuits
Two conductor layers with or without plated through holes — enabling crossover connections, two-sided component placement, and significantly greater circuit complexity.
Double-sided flexible circuits have two conductor layers that can be fabricated with or without plated through holes (PTH). The PTH construction (IPC Type II) is most common — providing termination pads on both sides for component placement on either face.
When constructed without plated through holes with connections accessible from one side only, the circuit is classified as IPC Type V (military spec). This is less common but available for specific design requirements.
One major advantage of double-sided construction is the ease of crossover connections — routing signals from one conductor layer to the other avoids routing conflicts that would be impossible in a single-layer design.
Many circuits that appear to need only a single conductor layer are actually built on double-sided substrates because they need one or two crossover connections. GCA Flex engineers evaluate your design and recommend the most cost-effective construction.
Quick Specifications
Common Questions
Double-Sided Flexible Circuits FAQs
What is the difference between Type II and Type V?
Can components be placed on both sides?
Why choose double-sided over single-sided flex?
What surface finishes are available?
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