highly-rated lead free hasl pcb carbon company for wholesale

Latest products

4 layers PCB with IPC CLASS3 acceptance standard

4 layers PCB with SHENGYI S1000-2

4 layers PCB with impedance control

4 layers PCB with ENIG finish

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Company Advantages
1. The quality of A-TECH pcb gold plating is strictly tested. We check the color fastness of the fabric/attachment, and the overall construction of this product. It is lead-free and environmental-friendly and has passed SGS test
2. There will professional technical persons to help you if there is any problems for our lead free hasl pcb. It has passed AOI which ensures there will be no errors or welding defects
3. A quality assurance system is instituted to demonstrate compliance with the requirements of standards. It stands out for its impact endurance performance
4. Comprehensive quality control is carried out to ensure the product meets with all related quality standards. Being laminated by advanced vacuum lamination equipment, it has a uniform dielectric thickness after lamination

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.

Company Features
1. Thanks to the diligent efforts made by our A-TECH staff, we have been rapidly grown into a leading lead free hasl pcb manufacturer.
2. As the trustworthy peelable solder mask pcb supplier, A-TECH has been always providing the best quality products.
3. A-TECH CIRCUITS Co., Ltd.' purpose is to strengthen its technological power to be an expert in hasl pcb finish field. Ask!

x******w

Before delivery, A-TECH pcb gold plating has to undergo a wide range of tests. It is strictly tested in terms of the strength of its materials, statics&dynamics performance, resistance to vibrations&fatigue, etc. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support

q******j

A-TECH hasl pcb finish has been tested according to the general standards. It is tested in terms of functionality, strength, stiffness, wears, and corrosion. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support

u******d

A-TECH hasl pcb finish is strictly assessed after production. Many factors include part tolerances, size limitations, materials properties, mechanical analysis, and function realization have been analyzed. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support

h******c

A-TECH pcb gold plating is manufactured adopting advanced machines. These machines mainly include punching machine, bending machine, stamping machine, milling machine, cutting machine, etc. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support

u******c

The creation of A-TECH lead free hasl pcb involves some advanced technologies. They include mechanical systems technology, automatic control technology, sensing technology, and servo-drive technology. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support

i******n

The product undergoes rigorous quality checks under the supervision of qualified professionals to ensure quality. Founded in 2003, Wenzhou Eugenia Eyewear Factory is one of the leader supplier of sunglasses / reading glasses in Metal, Plastic, Metal / Plastic in, and eyewear accessories in Wenzhou. And we already have built our good reputation by providing high quality products and value-added solution in the industry. Our mission is to be a true value-added manufacturer by providing services beyond value and quality to build strong and sustainable customer relationships. We pride on our extensive product knowledge and unparalleled customer support

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A-TECH carbon lead free hasl pcb company for wholesale