China osp pcb finish Supply at discount

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4 layers PCB with IPC CLASS3 acceptance standard

4 layers PCB with SHENGYI S1000-2

4 layers PCB with impedance control

4 layers PCB with ENIG finish

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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.

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A-TECH CIRCUITS Co., Ltd. has many years of production experience, exquisite production technology, strong production strength, and can produce high-quality osp pcb finish.

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A-TECH CIRCUITS Co., Ltd. In the manufacturing of osp pcb finish, we have strict requirements and strive for excellence. We not only strictly control the raw materials, but also establish a quality inspection system in accordance with international relevant product testing standards to ensure that every product we sell is qualified and of high quality. Up to standard.

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A-TECH CIRCUITS Co., Ltd. Not only selected high-quality raw materials, but also adhered to the introduction of advanced production technology to produce enig pcb finish, and carried out layer-by-layer checks and monitoring on each production link to ensure that all enig pcb finish that leave the factory are qualified products, for customers Provide reliable quality assurance.

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A-TECH CIRCUITS Co., Ltd. Pay attention to product quality, and strictly follow relevant standards in the process of product planning, design, manufacturing, testing, and transportation. The enig pcb finish produced is not only stable in performance, high in safety, but also of excellent quality and high quality .

s******e

The company has strong strength and strict management. It not only has a standardized production workshop, but also has established a perfect quality management system. From the selection of raw materials to the delivery of finished products, the quality is strictly controlled in every link to ensure the excellent quality of enig pcb finish.

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The product is resistant to the corrosive medium, such as oil, acid, alkali, and salt. Its parts have been finely treated with electroplating and polishing to enhance its chemical corrosion resistance. This product can stand up to any form of vibration

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A-TECH osp pcb finish Supply at discount