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high quality carbon pcb free bulk production at discount

high quality carbon pcb free bulk production at discount
  • high quality carbon pcb free bulk production at discount

high quality carbon pcb free bulk production at discount

Immersion Tin, or Chemical Tin, it’s a RoHS Compliant metallic finish deposited by a chemical displacement reaction that is...
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Company Advantages
1. The manufacturing steps of A-TECH enig pcb finish involve several major parts. They are materials preparation, materials processing, and components processing. It stands out for its impact endurance performance
2. A-TECH CIRCUITS Co., Ltd. has formed a core competitive advantage of 'rapid product innovation, specialization in production, and timely delivery'. The product has the performance of great stability
3. Its surge protection device is a good barrier against the surge voltage for the LED driver and other electronic components. This device guarantees the longer service life of the product. It is lead-free and environmental-friendly and has passed SGS test
4. Every aspect of the product is strictly tested to meet international quality standards. It is offered with low dielectric loss
5. Product quality has passed a number of international certification. It is characterized by high thermal conductivity and good heat dissipation


Immersion Tin, or Chemical Tin, it’s a RoHS Compliant metallic finish deposited by a chemical displacement reaction that is applied directly over the basis metal of the circuit board, the immersion Tin protects the underlying copper from oxidation over it’s intended shelf life, copper and tin however have a strong affinity for one another, the diffusion of one metal into the other will occur inevitably, directly impacting the shelf life of the deposit and the performance of the finish. The negative effects of tin whiskers growth are well described in industry related literature and topics of several published papers.

The typical thickness of Immersion Tin is ≥1.0UM and the shelf life is 6 months. The cost of Immersion Tin is more expensive than HASL but less expensive than Immersion Gold PCB and close to Immersion Silver. Similar to Immersion Silver, Immersion Tin is also sensitive in handling and storage, it requires PCB manufacturers to control and pack PCBs with Imm Tin more carefully.



The advantages of Immersion Tin

● Excellent flatness
● Mid range cost for lead free finish
● Good for fine pitch / BGA / smaller components
● Top choice for press fit technology
● Reworkable



The disadvantages of Immersion Tin

● Very sensitive to handling – gloves must be used
● Exposed Tin on final assembly can corrode
● Not good for multiple reflow/assembly processes
● Aggressive to soldermask – soldermask dam should be more than 5mil
● Baking prior to use can have a negative effect



A-TECH is capable of using Immersion Tin, we make the profile and electrical test before the process of Immersion Tin finish, and we use papers to separate each piece of boards to avoid scratches during package and transportation.




Company Features
1. With many years of experience, A-TECH CIRCUITS Co., Ltd. has consolidated its position as a leading enig pcb finish manufacturer in China.
2. We have imported a series of flexible and modern production facilities. They are perfectly suited to offering scalable manufacture, from one-off custom design products, right up to bulk production runs.
3. We work with ISO-certified suppliers who have the right working conditions, working times, and who conduct their work without undue risk or pressure.
All of the designing details of A-TECH enig pcb finish are specified in the spec sheet. They include measurements, tolerance, fabric types, sewing techniques, and so on. It has been widely exported to Taiwan, the USA, Europe, Southeast Asia, and the Middle East
The choice of the materials for A-TECH carbon pcb is rigorous. It takes factors such as screen gain, color shift and sound loss into consideration. The product does not peel off even used in a humid environment
The manufacturing process of A-TECH enig pcb finish covers the following stages: foot shape collection, graphic design, molding, trimming, and antibacterial finishing. It is not likely to tear paint off the base materials
The raw materials of A-TECH enig pcb finish are sourced and handled in a strict manner. They have to be cleansed, measured, moisture removed, and tested for harmful substances to make sure they are in line with standards for furniture pieces. The product is available in many different sizes and viscosity levels
A-TECH carbon pcb is carefully designed. Special emphasis is placed on its human and functional factors as well as the aesthetics and use of materials. This product can keep the packaged contents safe and secured
This product has low chemical emissions. It is granted with a Greenguard certification which means it has been tested for more than 10,000 chemicals. The product has a super clear backing to show the brand logo
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