Home > Buy PCB MANUFACTURING > Pcb Surface Finish Exporter > A-TECH highly-rated pcb surface finish immersion for wholesale

A-TECH highly-rated pcb surface finish immersion 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: Get Latest Price

Inquire Online

Get the latest price

Product Comparison

A-TECH has the ability to meet different needs. PCB Manufacturing is available in multiple types and specifications. The quality is reliable and the price is reasonable.A-TECH's PCB Manufacturing has been substantially improved in a scientific way, as shown in the following aspects.

Product Details

With a focus on details, A-TECH strives to create high-quality PCB Assembly.PCB Assembly is in line with the stringent quality standards. The price is more favorable than other products in the industry and the cost performance is relatively high.

Company Advantages
1. High quality material is very important for pcb surface finish in A-TECH CIRCUITS Co., Ltd..
2. Comparing with standard pcb gold plating , many advantages of pcb surface finish are shown by osp pcb finish .
3. Whether the motivations are economic, environmental, or personal, the benefits of this product will have something to offer for everyone.
4. Whether the motivations are economic, environmental, or personal, the benefits of this product will have something to offer for everyone.

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. has made outstanding contributions to the pcb gold plating industry in China.
2. A-TECH is popular among customers mainly because of stable quality and constant new product development.
3. A-TECH has been constantly improving to manufacture pcb surface finish and serve customers with the most professional service. Get price! To be a leader in hasl pcb industry, A-TECH has been doing its utmost to serve customers. Get price! We are a professional manufacturer of enig pcb with high quality. Get price! The Core Values of A-TECH CIRCUITS Co., Ltd. is creating value for customers. Get price!