PTFE TU872 High Frequency PCB HDI Fr4 Printed Circuit Board Matte Green

OEM Electronic Prototype HDI Aluminum FR4 High Frequency PCB Soldering Machine

High Frequency PCB Fabrication Process

Copper printing for the inner layers

The actual manufacturing of the PCB by your manufacturer takes place at this stage.

Once you have printed the PCB onto the laminate, you will pre-bond the copper on the same laminate that acts as the structure of your PCB.

After that, you engrave the copper to reveal the earlier blueprint of your PCB. You then cover your laminate panel using a photosensitive film known as a resist.

The composition of this resist is a photoreactive chemical layer which hardens when you expose it to ultraviolet light.

Resist allows your manufacturer to obtain the best match between the printed results on the photoresist and the blueprint photos.

After lining up of your laminate and the resist using the hole, you will expose them to ultraviolet light.

Here, the light will travel through the translucent areas of the film which hardens the photoresist.

By hardening, you can see the copper areas which you have to use as pathways.

On the other hand, the black ink will intercept any light that tries to reach the areas which are not to be hardened which you can remove later.

After preparing the PCB, you will have to wash it using an alkaline solution which removes remnants of the resist.

Next, you have to pressure wash your PCB to detach anything that remains on the surface.

The next step is to allow your PCB to dry. After that, remove the resist from the PCB apart from the ones on the top of the copper. Be careful to avoid any errors at this stage.

High Frequency PCB Fabrication Process

PCB Plating

After drilling, you can now go ahead and plate your PCB. In this process, you will use chemicals to join the different layers together.

You will have to clean the PCB thoroughly before you bath it in various chemicals.

Coating of the panel in a micro – copper layer takes place during the bathing process. Bathing also helps in covering the walls of the drilled copper walls.

What is the difference between high speed PCB and high frequency PCB?

High speed and high frequency pcb is different. High-speed circuit refers to that the voltage rises or falls in a short period of time, and High Frequency circuit refers to that the circuit has a short period. But there is no exact difference between a high-speed PCB and a High Frequency PCB. Even the basic materials are the same. So if you ask the difference between high-speed PCB and High Frequency PCB, ignore the name of the circuit board, and focus on how to maintain the signal integrity of the circuit.

PCB Capacities and Technical Specification

Company introduction

CESGATE has the capability to manufacture pcb ranging from basic single sided boards up to forty layers, and provide one stop turnkey services, including pcb manufacture, assembly, components sourcing and function testing.With one-stop solution, high-end product structure, professional product development and manufacturing technology, stable quality performance and well management system,
CESGATE has established long-term and stable cooperate relations with the world's leading communication equipment , aerospace electronics and medical equipment manufacturers.