A-TECH high quality peelable mask pcb bulk production at discount

Company Advantages
1. A-TECH osp pcb finish is manufactured from carefully selected materials.
2. A-TECH CIRCUITS Co., Ltd. uses strategic management to obtain and maintain competitive advantage. It is lead-free and environmental-friendly and has passed SGS test
3. Our qualified and experienced staff strictly follows the quality control system. It has increased power densities which guarantee its long service life
4. It is widely praised for its various special features and superb performance.
5. peelable mask pcb is equipped with an advanced heat exchanger to greatly improve the heat exchange efficiency of the evaporator. Moreover, it has a variety of protection functions. It is of good durability and reliable safety.

HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in PCB manufacturing.

HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).

The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). This solder will cover all the exposed copper surfaces. Upon retraction from the solder, high pressure hot air is blown over the surface through air knives, this levels the solder deposit and removes the excess solder from the surface of printed circuit boards.

The typical thickness of HAL(Lead Free) is 1-40um and the shelf life is 12 months.

The advantages of HAL(Lead Free) surface finish

● Good solderability / wettability
● RoHS Compliant
● Good reflow properties
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used

The disadvantages of HAL(Lead Free) surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Solder bridge
● Plugged or Reduced plated through holes

A-TECH have HAL(Lead Free) surface finish in house, It’s basically the highest proportion of finish used for circuit boards without fine pitch or high density layout. We don’t have any additional cost for HAL(Lead Free) surface finish.

Company Features
1. Since our establishment, A-TECH CIRCUITS Co., Ltd. has developed into one of the leading manufacturers in China, specializing in the manufacture of osp pcb finish . With the unique technology and stable quality, our peelable mask pcb win a wider and wider market gradually.
2. we have successfully developed a variety of pcb surface finish series.
3. Our excellent technician will always here to provide help or explanation for any problem happened to our immersion silver pcb . A-TECH CIRCUITS Co., Ltd. is dedicated to spreading the reputation of its own brand. Ask!