Our Four-layer Tin-Sprayed PCB is manufactured using advanced multilayer PCB fabrication technology combined with a Hot Air Solder Leveling (HASL) surface finish process. This cost-effective solution offers excellent solderability, reliable electrical performance, and high mechanical stability, making it an ideal choice for industrial, consumer, communication, and automotive electronic applications.
With strict quality control and advanced manufacturing capabilities, we provide high-quality four-layer PCBs that meet international standards and customer-specific requirements.
Typical 4-Layer Stack-up:
Top Layer (Signal)
Inner Layer 1 (Ground Plane)
Inner Layer 2 (Power Plane)
Bottom Layer (Signal)
The four-layer structure provides improved signal integrity, better EMC performance, and enhanced circuit stability compared with double-sided PCBs.
✓ Excellent Solderability
The HASL surface finish provides outstanding soldering performance and assembly reliability.
✓ Cost-Effective Solution
Offers an excellent balance between performance and manufacturing cost.
✓ High Reliability
Ensures stable electrical and mechanical performance under various operating conditions.
✓ Enhanced Signal Integrity
Four-layer design reduces EMI and improves signal transmission quality.
✓ Good Mechanical Strength
Provides excellent dimensional stability and durability.
✓ Customized Manufacturing
Supports customized dimensions, thicknesses, materials, and surface finishes.
| Item | Specification |
|---|---|
| Layer Count | 4 Layers |
| Base Material | FR-4 |
| Board Thickness | 0.4mm – 3.2mm |
| Copper Thickness | 1oz – 6oz |
| Surface Finish | HASL / Lead-free HASL |
| Minimum Line Width/Space | 3/3 mil |
| Minimum Hole Size | 0.15mm |
| Solder Mask Color | Green, Black, White, Blue, Red |
| Silkscreen Color | White, Black |
| Maximum Panel Size | Customized |
| Standard | IPC Class II / III |
Excellent solderability
Strong process compatibility
Cost-effective manufacturing
Good mechanical durability
Suitable for through-hole and SMT assembly
Reliable performance for mass production
Routers
Network switches
Communication modules
Wireless devices
PLC controllers
Industrial automation equipment
Power management systems
Control modules
Smart home devices
Household appliances
Audio and video equipment
Electronic control boards
Vehicle control systems
Instrument panels
Automotive power modules
Electronic accessories
CCTV systems
Access control systems
Alarm equipment
Monitoring devices
Professional PCB manufacturer with extensive experience
Advanced manufacturing and inspection equipment
Competitive pricing and stable quality
Fast quotation and short lead time
Strict quality control system
One-stop PCB manufacturing service
Prototype to mass production
DFM engineering support
RoHS compliant manufacturing
IPC Class II/III standards
AOI inspection
Flying probe and electrical testing
100% quality inspection before shipment
