PCB manufacturers can choose between two primary forms of soldering – wave soldering or reflow soldering. Here are the key differences to keep in mind.
Wave Soldering: Bulk Production
When comparing wave soldering vs. reflow soldering in PCB—and their key differences—the primary distinction lies in the process itself. Wave soldering is mainly known as the cost-effective technique for soldering a higher volume of PCBs simultaneously. The four-step process involves applying flux to electronic parts needing soldering, preheating to avoid thermal shock, undergoing a high-temp wave solder in a machine, and proper cooling for peak value.
One aspect of wave soldering to know about is its prominence for large-scale through-hole types of circuit boards. This speedy and reliable method helps achieve the appropriate soldering thickness for larger board components, variations of lead styles, and pin pasting directly in place.
Reflow Soldering: Lower Volume Production
On the contrary, reflow is a two-step process best suited for SMT circuit board assembly. Many PCB manufacturers depend on this simple and trustworthy technique to efficiently mount surface pads and orientate single-sided or double-sided boards. The method involves applying a flux paste to fasten PCB parts to their contact pads. Then, the comprehensive package undergoes controlled heating in a reflow oven to melt the solder paste and firmly attach the joints.
The process is less complex than wave soldering. However, reflow is technically slower and usually has a higher cost. This is because reflow soldering offers greater flexibility for surface-mount package projects and is easier to monitor for low-mid volume assembly.
PCB Assembly: Manufacturing Methods
At the end of the day, deciding between these soldering methods isn’t really a choice per se. Expert engineers opt for the most logical process for your unique applications to ensure a successful project. Both are practical solutions for commercial-level PCB construction, depending on one’s needs and budget.
For professional PCB manufacturing in the USA, turn to Advanced Assembly. We offer assembly and fabrication services for a wide array of printed circuit board projects. Our cutting-edge technology provides our customers with the flexibility and expertise they need to get the job done right. A perfectly functioning PCB is our main objective each time. Learn more about our pioneering quick-turn, SMT, and through-hole assembly services to take the headaches and hassles out of your project today.
