A-TECH  >  AI - Page Sitemap  >  A-TECH leveling immersion silver pcb finish manufacturers at discount
A-TECH leveling immersion silver pcb finish manufacturers at discount

A-TECH leveling immersion silver pcb finish manufacturers 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
Get Latest Price
Get the latest price
Quantity Needed:
Pieces
E-mail:


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 design of A-TECH immersion silver pcb finish is simple yet practical. It adopts the designing concept of realizing minimized pool cleaning time with the least effort. High precision and integrity of the product guarantee its high output
A-TECH enig pcb finish is the fruit of several theories' application. Theories such as geology, Environics, as well as a cultural study is taken into consideration in the preliminary production stage. The product occupies only a small space
The design of A-TECH immersion silver pcb finish is conducted based on the heat dissipation theory by the designers who aim to provide customers with a complete heat dissipation solution including the prototype, design, and production. The professional and modern looking of the product appeals to the customers
The design of A-TECH enig pcb finish involves sophisticated electric knowledge. Its circuit, including main circuit, pilot circuit, and signal circuit are designed with as less as possible connecting wires. With auto operation function, it helps save labor cost and reduce the misoperating rate
A-TECH immersion silver pcb finish complies with electrical safety standards. These standards include CB certificate, CCC certificate, CCA certificate, and LOVAG certificate. The product has access to a wide range of custom production use
A strict quality control system ensures that product quality meets international standards. The product is complete in specifications
Product Message
Chat Online 编辑模式下无法使用
Chat Online inputting...
Please hold on and we will get back to you soon