What is Flex PCB coverlay?
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Flex PCBs can be found everywhere around us nowadays. This type of boards can be found for example in televisions, smartphones, cars and more. The compact size and high flexibility make Flex PCB a popular type of board for various applications. An important part of the Flex PCB is the so-called "coverlay", which we will introduce in this article.
Coverlay - meaning
Coverlay is a type of special material used to encapsulate or cover exposed layers of flex PCB circuits. It typically consists of a polyamide substrate and an adhesive. The adhesive is used to bond the polyimide to the flexible circuit and seal the circuit.
Once applied, this "coverlay" is aligned under specific thermal and pressure conditions with the surface of the circuit. As the name implies, the purpose of this layer is to cover the surface of the flex PCB to protect and insulate the circuit.
How do you choose the right material for your project?
So, what are the differences between a coverlay and a solder mask?
And does the coverlay handle the bending of flex PCBs?
You can read all about it on our blog...
Multi Layer & Flexible PCB manufacturing & Maintenance
5 个月More properties Coverley has better insulation capacity. It last long than solder mask. Fpc Can be processed easily in high temperature and chemicals like enig, Plating etc.