What is the nature of reflow welding in PCB manufacturers?  

What is the nature of reflow welding in PCB manufacturers?   The essence of reflow welding is “heating”, the core of the process is to design the temperature curve and set the furnace temperature.   The temperature curve refers to the “temperature-time” curve developed by the technician based on the representative package and solder paste of …

How to choose the surface treatment process of the circuit board?

How to choose the surface treatment process of the circuit board? After we design the PCB board, we need to choose the surface treatment process of the circuit board. The commonly used surface treatment processes of the circuit board are HASL (surface tin spraying process), ENIG (immersion gold process), OSP (anti-oxidation process), and the commonly …

What are the certifications of PCBA processing factories?

What are the certifications of PCBA processing factories? Many PCBA processing factories pay great attention to the quality management system, and generally apply for many quality certification certificates for the factory. The investment of this certification fee is more importantly concerned with the degree of trust the customer has in the PCBA processing plant. The …

What are the advantages and disadvantages of the surface treatment process of HASL, ENIG, and OSP circuit boards?

What are the advantages and disadvantages of the surface treatment process of HASL, ENIG, and OSP circuit boards? After we design the PCB board, we need to choose the surface treatment process of the circuit board. The commonly used surface treatment processes of the circuit board are HASL (surface tin spraying process), ENIG (immersion gold …

What are the precautions for PCBA circuit board imposition?

What are the precautions for PCBA circuit board imposition? In order to improve production efficiency and reduce production costs in PCBA processing, PCBA circuit boards are usually subjected to imposition production, which can facilitate PCBA processing plants for patch welding. Let’s talk about the common imposition methods and principles of PCBA circuit boards. Precautions for …

What are the classifications of flexible multilayer PCBA?

What are the classifications of flexible multilayer PCBA? Flexible multi-layer PCB, like rigid multi-layer PCB, adopts multi-layer lamination technology to make multi-layer flexible PCB. The simplest multilayer flexible PCB is a three-layer flexible PCB formed by covering two copper shielding layers on both sides of a single-sided PCB. This three-layer flexible PCB is equivalent to …

 What are the common types of PCB boards?

What are the common types of PCB boards? 1. Single panel The single panel is composed of “single-sided circuit + protective film”. The single-sided flexible board has better folding resistance. 2. Double panel The double panel is composed of “protective film + double-sided circuit + protective film”. The double-sided flexible board double-sided board substrate has …