Fine Pitch PCB Assembly Services

What is Fine Pitch PCB Assembly?

“Fine pitch” can be defined as boards with a significantly high amount of components per square inch. That is, the components are extremely close together and the board’s design rules are pushing the limits of PCB fabrication tolerances. These can also be referred to as “high-density PCB assembly.”

Fine pitch PCB assembly means assembling the PCBs where the center-to-center distance between adjacent SMD pads and solder balls (BGA pins, IC pins, connector pins...) is extremely small. In other words, the components are close together on a printed circuit board, and the high-speed and functional mounting machines for SMT assembly should have fine-pitch capabilities and accuracy.

So how far apart from one another exactly are the solder balls and pads on the PCB? According to some, the distance is within 0.7 mm, within 25 mil (0.625 mm), and within 0.5 mm. The smallest passive footprint that PCBONLINE's assembly fab can manage is 01005 (0.4mm x 0.2mm), and the fine-pitch pieces that it can assemble on PCBs have a pitch within 0.35mm. PCBONLINE offers the finest pitch at 0.05mm.

The smallest CSP (Chip Scale Package) devices have a pitch of only 0.05mm, while the smallest fine-pitch component in the world of electronics assembly has a 01005 footprint. At this level, surface mount assemblies are referred to as ultra-fine pitch assemblies. BGA PCB and HDI PCB assembly may need ultra-fine pitch.

Advantages of fine-pitch PCB assembly

Fine-pitch PCB assembly saves the PCB space dramatically, and this allows the PCB to carry more components. Products will have more functions and higher performances.

Fine-pitch components such as FBGAs package more circuits than the normal TSOP (thin small outline & package) in the same size.

Fine-pitch PCB assemblies also have better thermal dissipation, because solder balls of the fine-pitch components have more contact areas with the PCB than the normal component pins do.

Why Choose China PCBA Supplier KSPCBA as Your Fine Pitch PCB Assembly Services Manufacturer?

– Experienced and skilled team

– State-of-the-art equipment

– Strict quality control

– Excellent customer service

– Competitive price

How can we make high quality PCBA products?

Strict incoming material inspection control and management.
Never change BOM indicated material brand without customer’s permission.
Standard Operation Procedure
PCB will be baked in the oven machine in advance.
Fully automatic, high precision SMT and test equipment.
Comprehensive testing include AOI, X-Ray, ICT, software burning according to different PCBAs.
Strict quality management system.