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Immersion Tin PCB

Immersion Tin PCB

Immersion Tin PCB

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
E-mail:
Product Information of Immersion Tin PCB
Product Details
A-TECH's PCB Manufacturing is processed based on advanced technology. It has excellent performances in the following details.Under the guidance of market, A-TECH constantly strives for innovation. PCB Manufacturing has reliable quality, stable performance, good design, and great practicality.
Company Advantages
1. A-TECH pcb gold plating is made under powerful productivity with excellent equipment and advanced technology.
2. immersion silver pcb is flexible which can be adjusted by different circumstances.
3. Characterized by its reasonable price, our immersion silver pcb is also famous for its pcb gold plating .
4. With these favorable features, it will enjoy wide development prospects.
5. A-TECH CIRCUITS Co., Ltd. offers tailor-made services at competitive prices.


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 known for its outstanding capacity of manufacturing immersion silver pcb , therefore we are respected in the industry.
2. Our factory has a range of advanced production equipment that can make better carbon pcb .
3. A-TECH is committed to offering the most professional enig pcb . Ask! A-TECH CIRCUITS Co., Ltd. has made strong commitment to providing peelable mask pcb with high quality. Ask!
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