immersion gold pcb ,tin plating pcb

Product Information of Immersion Tin PCB

Product Details

A-TECH's PCB Manufacturing is perfect in every detail.Closely following the market trend, A-TECH uses advanced production equipment and manufacturing technology to produce PCB Manufacturing. The product receives favors from the majority of customers for the high quality and favorable price.

Company Advantages
1. The production of A-TECH tin plating pcb adopts modern innovation concepts in consistence with industry trends.
2. immersion gold pcb has some virtues such as tin plating pcb and so on.
3. Using this product is a cost-saving smart move that can reduce energy consumption and save money on the energy bill for people.

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 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. A-TECH CIRCUITS Co., Ltd. is a export-oriented manufacturer of tin plating pcb . We provide professional design and production of osp pcb finish .
2. A-TECH CIRCUITS Co., Ltd. has gained many patents for its technology.
3. Our vision is to develop best-in-class product solutions that help customers achieve more. Together with the ethical principles, it guides us in our everyday actions. Please contact. Committed to the environmental sustainability of our operations, we emphasize the use of renewable resources and the conservation of water. We have reduced the water utilization of our factory in order to prevent excessive utilization of water sources. In all of our business activities, we keep honest and respectful in communication and interactions with clients. We hope to build long-term business cooperations in such way. Our mission is to manufacture and deliver world-class quality products and provide excellent and reliable services, and ultimately create a company that will provide long-term value for customers. Please contact.

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