Smooth and frequent communication between electronic design and manufacturing engineers bring successful thick-copper PCB fabrication. Design engineers must be aware of the manufacturer's detail such as capacity, trace, spacing, via diameter, and square foot size, etc. Besides, PCB type requirements have to be taken into consideration like power, thru-hole structure, and material.
The fabrication method of the thick copper PCB is similar to that of the standard FR4 PCB. The fabricating involves the etching and plating processes like high-speed plating and deviation etching, which are to include a copper thickness in sidewalls and holes.
First is the plating process, which thickens the thru-hole wall and plated through-wall, and improves the thermal conducting property on board surface. Then comes the etching process. The advanced etching and plating techniques are applied to achieve optimal etching margin and straight edge. During thick copper PCB fabrication, assembling of cooling fins is of high significance.
(Note: during the production process, when the printed circuit board is subject to several cycles, the plated holes may get weak. Ideally, the holes strengthen when thick copper is added. That is why in electrical circuits, it is preferable to choose extreme current and power applications.)
Finally is the solder mask process. For more thick copper PCB manufacturers, solder mask processing is the most difficult, but we can do that easily. The working principle of the spraying equipment is to spray soldering ink on the board in a dust-free vacuum environment. The schematic diagram is as follows.
Applications of Thick Copper PCB
Applications of the thick copper PCBs include but limited to:
With the increase in PCB complexity, electronic engineers need to concern about PCB design rules and manufacturing techniques. Only in this way, can the product achieve the optimal balance between cost, performance requirement, and security. The benefits of features lead to minimum manufacturing risks.
One-Stop PCB Manufacturing
Quick Manufacturing and Delivery
Custom PCB Design & Assembly
21 Years of Experience