As a manufacturer specializing in the production of flexible circuit boards, the industry of products used by Flyheaters has
covered the optoelectronic industry, notebook manufacturing, automotive
industry and instrument monitoring industry. Flyheaters has always been
adhering to the business philosophy of “scientific and technological
innovation, honesty and integrity”, and has been widely favored by
customers in recent years. In order to enable our customers to better
understand what we are doing, flyheaters's technicians summarized the
surface treatment process for flexible circuit boards, and the key
points can be divided into the following three points.
Anti-oxidation process
The
oxidation prevention process is a chemical process that forms a thin
film on the bare copper surface. This film has anti-oxidation, thermal
shock resistance and moisture resistance. Therefore, in the PCB
manufacturing industry, the OSP process can replace the hot air leveling
technology. With the development of light, thin, short, miniaturized
and multi-functional electronic products, printed flexible circuit
boards are developing in the direction of high precision, thinness,
multi-layer and small holes, especially the rapid development of SMT.
Development, so that SMT with high-density thin plates continue to
develop, making the hot air leveling process more and more not suitable
for the above requirements. Compared with other processes, the
anti-oxidation process is more suitable for the development of SMT
technology in the electronics industry.
Tin plating
Tin
plating includes both electroless tin plating and immersion tin
plating. Tin plating and its alloys are coatings with good solderability
and corrosion resistance, and are widely used in electronic components
and printed circuit boards. Preparation of tin layer In addition to
physical methods such as hot dip, spray coating, electroplating,
immersion plating and electroless plating have been widely used in
industry because of their simplicity.
Gold plating
In
the flexible circuit board manufacturing industry, the gold plating
process is similar to tin plating, using electrolysis or other chemical
methods to attach gold to the surface of metal or other objects to form a
thin layer of gold.
