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A-TECH high quality osp pcb bulk production for wholesale

A-TECH high quality osp pcb bulk production for wholesale

Shelf Life
6 Months
RoHS Compliant
Additional Cost
Supply Capacity
5000 ㎡/Month
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Get Latest Price
Get the latest price
Quantity Needed:
Enterprise Strength
  • A-TECH has a professional customer service center for orders, complaints, and consultation of customers.
Product Details
A-TECH strives excellent quality by attaching great importance to details in the production of PCB prototype.
Company Advantages
1. The design of A-TECH hasl pcb finish involves several stages. They are trend studies, fabric and accessory research, sample making, etc.
2. The product is fire resistant. It limits the spread of fire by containing it within designated spaces or zones and preventing structural collapse.
3. A-TECH CIRCUITS Co., Ltd. has skilled artificial production lines, experienced high-quality technical backbones and management talents.

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 been committed to manufacturing osp pcb when it was built.
2. In order to meet up with market's high demands, A-TECH CIRCUITS Co., Ltd. set up professional R&D base.
3. With lofty vision, A-TECH will maintain improving in creating pcb mask. We will try to enter into the global market to be a famous enig pcb manufacture brand. Call now! A-TECH CIRCUITS Co., Ltd. currently has gained the recognition of more clients because of the high excellent service. Call now! In today’s global competition, A-TECH's vision is to be a famous brand all over the world as a immersion gold pcb manufacturing. Call now!
Thanks to the upgrading technology and creative ideas, the design of hasl pcb finish is especially unique in this industry. The product had passed the SGS Natural Salt Spray Test, which means it is acid and alkali resistant
A-TECH enig pcb adopts streamlined production process to minimize waste. Made of premium metal sheet, it is hard and tough to withstand cracking
The design style of A-TECH pcb mask combines tradition with modern concepts. It is also widely used in the aviation industry due to its added strength without adding too much weight
The production model of A-TECH hasl pcb finish relies on the concept of modern operations. Its wear and tear resistance allow it to withstand the heavy use in daily life
Beautifully designed, enig pcb looks more attractive. The surface of it has been treated with special polishing, making it retain its original shine after many times of uses
In comparing with other similar products, hasl pcb finish exhibited features like enig pcb. It will not result in stains which can affect the surrounding clean area
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