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highly-rated carbon ink pcb bulk production for wholesale

highly-rated carbon ink pcb bulk production 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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Pieces
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Enterprise Strength
  • A-TECH provides a full range of services, such as comprehensive product consultation and professional skills training.
Product Details
A-TECH pays great attention to product quality and strives for perfection in every detail of products. This enables us to create fine products.PCB Manufacturing is a truly cost-effective product. It is processed in strict accordance with relevant industry standards and is up to the national quality control standards. The quality is guaranteed and the price is really favorable.
Company Advantages
1. A-TECH hasl pcb is developed and manufactured using the latest technology materials.
2. The performance of this product has been greatly enhanced due to the rigorous quality tests.
3. The product is in accordance with the international quality standards, so it is durable.
4. With the unremitting efforts, A-TECH has owned a strong marketing network and hasl pcb have been exported to oversea market.


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. In a fantastic market environment, A-TECH CIRCUITS Co., Ltd. has grown quickly in the industry of hasl pcb .
2. A-TECH CIRCUITS Co., Ltd. is solid and powerful according to its technical foundation.
3. Our aim is to continuously improve competitiveness and takes the dominance in immersion tin pcb manufacture industry. Inquire! A-TECH CIRCUITS Co., Ltd. aims to create an international advanced peelable mask pcb supplier. Inquire! We must follow the concept of immersion silver pcb and stick to the insurmountable red line that puts customers in the first place. Inquire!
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