PCB Surface Finish
KING FIELD is a PCB manufacturer with over 20 years of professional experience. We are committed to providing high-quality, highly reliable PCBA solutions to customers worldwide.
☑ Provides one-stop PCB/PCBA solutions
☑ We support ODM/OEM
☑ 20+ years of PCB/PCBA manufacturing experience
Description
What is PCB Surface Finish?
PCB surface treatment is a process of depositing a special material onto the copper pads, leads, and conductive areas of a circuit board using chemical, electrochemical, or physical methods.
KING FIELD 's PCB Surface Finish capabilities
- Surface treatment types : HASL, immersion tin, immersion silver, ENIG, ENEPIG, nickel-gold plating, OSP, ENIG + OSP, nickel-gold plating + ENIG, nickel-gold plating + HASL, ENIG + HASL , gold finger plating, glitter gold plating; hard gold plating.
- Specialized processes : multilayer/HDI, impedance control, high Tg, thick copper, blind/buried vias/micro-vias, countersunk holes, selective plating, etc.; providing one-stop SMT /PCBA services.
KING FIELD 's PCB Surface Finish Service Advantages

20+ years of rich experience
Since its establishment in 2017, KING FIELD has accumulated rich experience in PCB manufacturing . We currently have a research and development team of 50+ people and a production team of 300+ people. We are committed to providing customers with one-stop solutions from solution design to mass production delivery.
Quality Control
In terms of quality control, KING FIELD has passed six major system certifications: IATF 16949, ISO 13485, ISO 9001, ISO 14001, ISO 45001, and QC 080000. With 7 SPI, 7 AOI, and 1 X-Ray testing equipment throughout the process, our MES system can achieve full traceability of each PCB board.
One-stop PCB/PCBA solution
Our services include front-end R&D and design, procurement of superior components, precision SMT placement, DIP insertion, complete assembly and full-function testing. We are committed to providing customers with one-stop PCB/PCBA solutions.
Partners
KING FIELD's services cover the global market, providing all-inclusive and customer-supplied material FR4 PCB manufacturing services. We serve well-known clients such as PRETTL, Yadea, Xinri, and Schneider in Germany , and have gained recognition from many clients.
FAQ
Q1 : How do you guarantee that there will be no cold solder joints?
KING FIELD: At KING FIELD, we don't use solder spraying for fine-pitch components; instead, we use immersion gold or OSP (Optically Smooth Plating) for better flatness. During the immersion gold process, we regularly conduct chemical tests to ensure the adhesion between the nickel and gold.
Q2 : How long can you guarantee the storage validity period?
KING FIELD: Our chemical nickel-gold vacuum-packed storage shelf life can reach more than 12 months, while OSP and immersion silver plates have a shelf life of 6-12 months.
Q3 : Can your boards withstand corrosion in harsh environments?
KING FIELD: In harsh environments with high temperature and high humidity , we will give priority to using chemically stable immersion gold processes because this type of surface treatment is resistant to high temperature and high humidity.
Q4 : How do you ensure that the quality of prototypes and mass production is consistent?
KING FIELD: Our prototyping and mass production are done on the same production line , using the exact same process parameters.
Q5 : Will your surface treatment affect high-frequency signals?
KING FIELD: Our high-frequency boards avoid using solder spraying. We generally use immersion silver or immersion gold processes to reduce signal loss.