The template used for PCB assembly manufacturing is made by referencing the PCB design layout with Gerber file data. Each template manufacturing technique produces different hole wall qualities. The quality depends on the roughness and accuracy of the template holes. The following are different template manufacturing technologies adopted by the industry.

Laser cutting is most suitable for forming precise apertures with neat edges. It is most suitable for fine spacing and high-density design. Laser cutting can produce trapezoidal aperture, making it easier to release solder paste. Therefore, laser cutting PCB templates are widely used.

Chemical etching uses subtraction to form patterns on templates. Firstly, clean the metal surface and cover it with photoresist. Then use chemicals to develop and rinse the photoresist. Etch unwanted metal with etchant spray.

Unlike other techniques, electroplating is an additive method that uses nickel. Electroforming is sometimes combined with laser cutting to obtain more precise PCB template apertures.

The following lists possible issues that may arise from poor design of circuit board templates, as well as solutions proposed based on our experience.

Inaccurate alignment between the circuit board and PCB template may result in printing misalignment.

The template is 100% accurate and the alignment should also be completed correctly.

Incorrect aperture geometry may cause solder overflow and bridging during printing and reflow processes.

Ensure the aperture is correct and inspect the template with PCB before printing solder paste.

The template opening is too narrow, which can lead to insufficient solder volume and incomplete solder coverage.

Experienced engineers will develop appropriate template files. After completion, compare the template with the PCB pads.

In addition to reflow soldering issues, the side of PCB templates may also be affected by template thickness and aperture size.

Adopt appropriate template thickness and aperture, and use solder ball templates.

If pursuing cost-effective FPC manufacturing services, choosing a Chinese manufacturer is the best choice. As a manufacturing powerhouse, China has abundant resources, cheap labor, and a large number of technical personnel. We recommend Haibo, a Chinese FPC assembly service provider with over 10 years of experience, who has performed outstandingly in various aspects

Efficient and reasonable quotation:There is an efficient quotation process to assist you in making decisions, providing reasonable prices and highly competitive quotes in China.
High quality and reliable products:Produce high standard printed circuit boards, manufacture and test according to specifications, international standards, and internal controls, and conduct pre production inspections to ensure robust processes.
Quick and on-time delivery:The assembly equipment is in good condition, with high productivity, minimal downtime, short delivery time, and also provides urgent services.
Timely and effective response:Always respond to customer needs, provide accurate information, answer questions through multiple channels, and offer one-stop services.
Strong technical strength:China's FPC manufacturing technology is leading, and Haibo has a complete SMT solution that covers assembly, inspection, and other capabilities. It also provides prototype production and customization services.