HOT AIR SOLDER LEVELING HASL PCB
Hot air solder leveling of hasl pcb, which is a process of coating molten tin-lead solder on the surface of the PCB and leveling (blow-out) with heated compressed air to form a coating layer that is resistant to copper oxidation and provides good solderability.
Hot air leveling is divided into two types: vertical and horizontal. Generally, the horizontal type is considered to be better. The horizontal hot air leveling coating is relatively uniform, which can realize automatic production. The general process is: micro-etching-> preheating-> coating flux-> spraying tin-> cleaning.
HASL PCB
Currently, about 25% -30% of PCBs use the hot air leveling process. Hot air leveling is a dirty, unpleasant, and dangerous process, so it has never been a favorite process, but hot air leveling is an excellent process for larger components and larger spacing wires. In high-density PCBs, the flatness of hot air leveling will affect subsequent assembly; therefore, HDI boards generally do not use the hot air leveling process.
If you are finding pcb design ltd,I think we are your best choice.
在线联系供应商
Other supplier products
 |
ALUMINUM PCB / METAL CORE PCB | Aluminum Clad PCB/METAL CORE PCB The aluminum substrate is a metal-based copper-clad plate with good heat dissipation function. Generally, the si... |
 |
WIRING ON THE DOUBLE-SIDED BOARD——DOUBLE SIDED PCB | Speedapcb - The printed circuit board manufacturersin China, established in 2014, is located in Changsha, Hunan Province. The company focuses on hi... |
 |
Inverter AC PCB | An inverter ac pcb boardusually is the PCB with multi-inputs and high-voltage outputs. For a large-screen television, if there's an LCD panel with ... |
 |
IMMERSION GOLD PCB / GOLD PLATING PCB / GOLD PLATED PCB | Immersion nickel / gold is a thick layer of nickel-gold alloy with good electrical properties and can protect the PCB for a long time. Unlike OSP P... |
 |
PLATED THROUGH HOLE PCB / PTH PCB | Speedapcb - The printed circuit board manufacturersin China, established in 2014, is located in Changsha, Hunan Province. The company focuses on h... |
Same products
 |
PETG Film | 卖方: Shanghai MSD International Trade Co., Ltd | PETG Film offers clarity, flexibility, and reliable forming properties for various packaging and ... |
 |
Waterproof Connector for Plastic Extension Cable | 卖方: 868902 | Zhejiang HJSI Connector Co., Ltd. offers the Waterproof Connector for Plastic Extension Cable, de... |
 |
Ergonomic Tools for Indoor Mosquito and Bug Control | 卖方: YIWU JIUXIN ELECTRIC CO., LTD. | The Handheld Bug Swatter from Yiwu Jiuxin Electric Co Ltd is designed for convenient household in... |
 |
Perimeter Intrusion Detection System | 卖方: Raycom Co., Ltd | A (PIDS) is a security solution specifically designed to detect unauthorized access or intrusion ... |
 |
Buried Cable Detection Systems | 卖方: Raycom Co., Ltd | provide reliable protection for applications that require hidden perimeter protection. These volu... |
