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A-TECH highly-rated immersion tin pcb factory at discount

A-TECH highly-rated immersion tin pcb factory at discount

Thickness
≥1.0um
Shelf Life
6 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
Yes
Supply Capacity
5000 ㎡/Month
Certifications
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Standard
IPC CLASS 2 / CLASS 3
Price
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Quantity Needed:
Pieces
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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.




A-TECH enig pcb finish is of a unique design. It is come up by our designers choosing a silhouette and using new fabrics, new colors, fabric manipulation, etc. of garment construction. This product represents a cost-effective and reliable solution for short-distance transportation
The create of A-TECH enig pcb finish goes through a fine analysis of manufacture requirements. The procedure consists of designing model sketch or prototype, deciding the reasonable number of operations, choosing work methods and selecting adequate equipment. Thanks to its solid construction, this product is unaffected by collisions
The quality of A-TECH immersion tin pcb is guaranteed through a series of performance tests. Chemical tests, colorfastness, tensile strength, etc. are some of the common tests that are done on this product and materials used in it. This product helps improve labor efficiency, which finally helps save time
The design of A-TECH immersion tin pcb follows the Unity Principle which refers to all elements of the design being in harmony, reflecting a sense of completeness. Since it is highly ergonomic, goods can be moved with remarkably less force
Every single A-TECH enig pcb finish is thought out by our design department who take time to research, test and experiment with different materials and techniques that best fit the line of work that the garment is suited for. This product represents a cost-effective and reliable solution for short-distance transportation
To guarantee quality of this product, our quality check team strictly implements measures of testing. Even with heavy cargo, it remains surprisingly quiet
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