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A-TECH gold plated carbon pcb free delivery at discount

A-TECH gold plated carbon pcb free delivery 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.




The shape is among the most important in fashion design of A-TECH osp coating pcb. The goal of its shape is to compliment the shape of the body. The product has a compact design and can be space-saving
A-TECH osp coating pcb has passed through various performance tests, including high voltage test (dielectric withstand test), leakage current test, and ground continuity test. Fatigue resistance and wear resistance make the product be highly recognized in the metal industry
During the production, A-TECH osp coating pcb is strictly scrutinized and tested in terms of its cutting, stamping, extrusion, anodizing, and polishing quality.
Various quality tests are conducted on A-TECH carbon pcb. The whole body structure goes through the temperature and water spray tests, and its cells parts are required to be tested in terms of purity, crystal orientation, and resistivity. The product provides maximum rigidity and stiffness
A-TECH carbon pcb has to go through various kinds of tests. The test has been conducted to ensure each product is STC or sound transmission class. It can also be passivated, anodized, and degreased to meet the needs of different technical parameters
carbon pcb has the properties of osp coating pcb, which is used in osp coating pcb. The product can be processed with different patterns by laser graving technology
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