The success of your Printed Circuit Board is dependent on its design, assembly, and materials. But with an array of PCB material options to consider; how do you select the most effective material for your design?
Prior to making a material selection, it is important to consider factors like user interaction, thermal exposure (internally and externally), environmental conditions, component location, and design. Evaluating these variables will allow you to choose the right materials to support the manufacturability, longevity, and performance of your product.
Before starting your project, we strongly advise consulting with your PCB service provider regarding your PCB material options.
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Circuit Board Materials
Standard Rigid FR4
This cost-efficient board is easy for designers and fabricators to work with because of its electrical and mechanical characteristics. The composition of the board results in predictable and consistent fabrication. This board type is ideal for automotive and wireless communication applications.
Other applications:
- MCM-Ls
- Direct chip attachment
- High-volume fine line multi-layer
- PCMCIAs
Flex and Rigid-Flex:
Flex-circuits have become increasingly popular and support the reduction of an application’s size and weight due to their flexibility, and are ideal for high temperature and high-density applications. This board type is ideal for medical and mobile consumer electronic applications Commonly manufactured using “Kapton”, a polyimide film-based material developed by
Dupont Corporation, it is resistant to heat, has dimensional stability and a low dielectric constant of 3.6.
There are three variants of the Kapton material:
- Pyralux LF (Acrylic Base Adhesive-not Flame Retardant)
- Pyralux FR (Acrylic Base Adhesive-Flame Retardant)
- Pyralux AP (Adhesiveless-for more demanding high-performance applications)
For more information, visit www.greencircuits.com.
