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A-TECH wholesale China immersion silver pcb finish factory for wholesale

A-TECH wholesale China immersion silver pcb finish factory for wholesale

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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Company Advantages
1. A-TECH osp pcb finish is made of high-quality materials which are strictly selected by our experienced production team based on the application requirements and the industry quality standards. The product can be resistant to corrosion
2. If washed with hot water or dried with a dryer, the product is not easy to shrink. It is offered with low dielectric loss
3. The product has a definite elasticity. It is able to regain its initial shape and size after removal of load. It can be printed with numbers, names, data codes, logos, or other specific information


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. A-TECH CIRCUITS Co., Ltd. has accumulated advanced production technology and the managerial experience for immersion silver pcb finish production.
2. We want satisfied customers to trust our products for a long time. We know that the image and name of a brand can only gain real value if it can see good works behind it. Please contact us!
A-TECH osp pcb finish is strictly tested before shipped. Its fabric is tested for ingredients content and strength, and the color is tested for fastness under light and bleach. It works stably under strong impact and vibration conditions
The quality of A-TECH immersion silver pcb finish is guaranteed. Its PV system and the solar modules are rigorously scrutinized to meet the requirements of solar products. Since it is maintenance-free, this product significantly helps save operation costs
A-TECH osp pcb finish is completed after a series of the production processes, namely, mold extrusion, turning, milling, drilling, lathing, grinding, and wire cutting. This product has the feature of explosion-proof
A-TECH osp pcb finish is produced based on strict requirements. It is processed in a clean and dustless plant, and the static and rotating rings are guaranteed to be treated with no impurities. This product is mainly used for the automation process
A-TECH osp pcb finish will go through the rough machining process such as material cutting, as well as the finish machining process such as polishing or plating. This product features a frequency response property
The product protects the objects from shock, vibration, compression, temperature, etc. It also provides a barrier from oxygen, water vapor, dust, etc. This product is mainly used for the automation process
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