FR-4 Multilayer Boards11
The workhorse line from prototype to volume: 1 pc minimum, 24-hour expedited shipping, volume pricing from 100 pcs, IPC Class 2 as standard.
What is FR-4
FR-4 is a laminate made of glass-fiber cloth impregnated with epoxy resin and clad with copper on both sides - the most widely used substrate in the PCB industry. Its balance of mechanical strength, insulation and cost covers most scenarios from consumer electronics to industrial equipment.
| Structure | Glass fiber + epoxy resin + copper foil |
| Common Tg | 130℃ / 150℃ / 170℃ (high Tg) |
| Lead-free Compatible | Tg ≥ 150℃ recommended for lead-free reflow |
| Copper Weight | 1 oz - 6 oz (inner/outer layers combinable) |
| Common Laminates | Shengyi S1000-2M / Kingboard KB-6160 / ITEQ IT-180A |
| Typical Uses | Consumer, industrial, communication, automotive, power |
How to Choose Tg and Laminate
The higher the Tg (glass transition temperature), the better the heat resistance and dimensional stability. Simply choose by soldering process and board thickness.
Standard Tg130
Economy Choice- Suitable for tin-lead assembly or 1-4 layer boards
- Lowest cost with stable supply
- Best for: consumer electronics, sample runs
Mid Tg150
Lead-free Recommended- Compatible with lead-free reflow (260℃)
- Balanced performance and cost
- Best for: 6+ layers, industrial and communication
High Tg170+
High Reliability- No warpage on thick or high layer-count boards
- Low Z-CTE for high via reliability
- Best for: automotive, power, backplanes
Three volume tiers, one price sheet
Prototypes, small batches and volume orders share the same production line and quality standard - the more you order, the lower the unit price.
1-10 pcs
- 24h / 48h expedited options
- 100% flying probe test
- From $5
10-100 pcs
- Stable 3-5 day lead time
- Panelization for lower cost
- Unit price drops with volume
100+ pcs
- 5-7 day rolling production
- Process snapshots for identical reorders
- Best volume pricing
Product Showcase
Standard Multilayer Cases (2-6 Layers)
4-Layer Mechanical Keyboard Main Board
2-Layer Smart Plug Board
6-Layer Industrial Control Main Board
4-Layer Automotive Display Board
High Layer Count Cases (8-20 Layers)
10-Layer Communication Backplane
12-Layer Server Main Board
8-Layer BMS Power Board
16-Layer Test Fixture Board
Manufacturing Capabilities
Standard manufacturing capability range for this product line. Contact our engineers to evaluate special requirements.
| Layer Count | 1 - 20 layers |
| Board Thickness | 0.4 - 2.4 mm |
| Min. Trace/Space | 3/3 mil |
| Min. Hole Size | 0.15 mm |
| Max. Panel Size | 500 x 580 mm |
| Copper Weight | 1 - 6 oz |
| Surface Finish | HASL / ENIG / OSP / Immersion Silver / Immersion Tin |
| Solder Mask Color | Green / black / blue / white / matte and more |
| Impedance Control | Supported, tolerance ±10% |
| Quality Standard | IPC Class 2 (Class 3 optional) |
Quick prices for common boards (1-4 layers)
| Layers | Qty | Lead time | Ref. price |
|---|---|---|---|
| 1 layer | 10 pcs | 24 hours | $5 |
| 2 layers | 10 pcs | 24 hours | $5 |
| 4 layers | 10 pcs | 48 hours | $38 |
| 4 layers | 100 pcs | 48 hours | $168 |
Lead Time & Pricing Highlights
Consistent quality from 1 pc to 100K pcs
24h Expedited
Order before 12:00 on business days and 1-2 layer boards ship within 24 hours.
Up to 20 Layers
High layer-count stack-ups with impedance control for complex designs.
Volume Pricing
Unit price drops sharply from 100 pcs with panelization optimization.
Batch Consistency
SPC process monitoring keeps every batch within the same tolerance.
Typical Applications
R&D Verification
Prototype new designs before committing to a revision or volume run.
Industrial Control
PLCs, drives and control boards requiring long-term stable supply.
Communication Equipment
Router, switch and gateway boards with controlled impedance.
Automotive Electronics
Dashcams, T-Box and body control boards (non-safety critical).
Power & Charging
Power supplies, chargers and BMS boards with high-current paths.
Robotics & Makers
Fast small-batch iteration for maker and competition projects.
From Gerber to delivery in four steps
Upload Files
Send Gerber/ODB++ and stack-up table; standard boards get instant pricing.
Review & Quote
Complex boards get an engineer review before quoting.
Confirm Production
Confirm specs and price, pay online, and your boards enter the production queue.
Test & Deliver
Flying probe/fixture testing on every board with reports, shipped worldwide.
Further Reading
For more PCB process knowledge and technical practice, visit our blog center.
