The Rigid-Flex PCB is a combination of both the flexible PCB and rigid PCB. As a result, we get flexibility, compactness, and, most importantly, durability. However, for these PCBs to perform as desired, it is important to select the right materials carefully. This guide will teach you how to choose materials for your PCB.
Below are the top 6 most important things you must consider when selecting the materials for making this PCB.
The first thing you need to consider is your application and requirement from that PCB. Knowing what environment the PCB will be used in will help shortlist the material choices because of the harsh conditions you need to choose the more durable materials. Similarly, you can choose fewer durable materials for the PCB that will not be used in the harshest conditions.
The most important thing about choosing the material is the performance of the PCB. It is important because cheaper materials can cause high signal attenuation, which will cause a drop in the performance of your PCB. For high-performance requirements, you must choose the material that provides less signal attenuation to meet your performance requirements.
Next up, you need to check your budget. This type of PCB will already be expensive, and choosing expensive materials will make it more expensive. So, plan your budget and see how different materials will impact your overall unit cost. It will be an important part of the process if you are on a tight budget.
After the points above, you can start selecting materials and always choose with the conductors. Copper is The best conductor material you can use in these PCBs. It brings good performance at inexpensive pricing, making things favorable for you.
Next, check the dielectric material. It is the layer between different conductive layers, and Polyimide is a good material for this layer. It brings resistance against chemicals, moisture, and heat. So, it makes a good choice for all high-performance requirements. It keeps things inexpensive yet reliable for all types of PCBs.
Cladding material covers the whole dielectric layer for protection; polyester is usually used for this purpose. Due to its flexibility and strength, along with resistance to chemicals and moisture, it makes a good choice for multiple applications. When using it in this PCB, you will get an inexpensive, reliable option.
The Rigid-Flex PCB brings a good combination of durability, compactness, reliability, and flexibility. That’s how we can fit so much power into compact devices while keeping them convenient. Find out more about the impact of different materials on the functioning of this PCB.