Description
3 Layer PCBs –High-Quality Multilayer Circuit Boards
At SFX PCB, we’ve been manufacturing 3-layer PCB boards according to the customer’s design. The 3L PCB has more routing space than a double-sided board, but without the need for a 4 Layer PCB.
Why Customers Keep Ordering 3 Layer PCBs From Us
- Same-day quotes (we know you’re in a hurry)
- No minimum order (order 1 or 1,000)
- Real engineering review (we’ll catch your mistakes before production)
- Fast prototyping & production(24-hour turnaround available)
Our 3 Layer PCB Capabilities
- Thickness: From credit-card thin (0.3mm) to sturdy (4.5mm)
- Copper: 12um-700um
- Finishes: ENIG, HAL Leadfree, HASL, OSP
How We Build Your 3 Layer PCB (Step-by-Step)
- File Check: Our engineer personally reviews your Gerbers
- Material Prep: We cut your specific laminate size to reduce waste
- Lamination: Using our modified press for odd-layer bonding
- Drilling: CNC machines that don’t wander
- Plating: Equal copper distribution (critical for 3-layer)
- Testing: Every board gets powered up before shipping
Common Uses We See (Real Customer Examples)
- LED Controllers: Power layer in middle, signals top/bottom
- Industrial Sensors: Ground plane blocks interference
- Power Supplies: Thick copper middle layer for current
- Auto Modules: Our high-Tg material handles engine heat
Design Tips From Our Engineers
“Most 3-layer fails come from these 3 mistakes:”
- Forgetting to specify middle layer purpose (we’ll assume ground)
- Putting high-speed signals on bottom layer (use top instead)
- Not leaving enough clearance around board edges (we need 0.1″)
Ready to Order? Here’s How It Works
- Send Files: Gerbers + notes about special needs
- Get Quote: Within 4 hours (often faster)
- Approval: We’ll confirm all details
- Production: Starts same day
- Shipping: With tracking number emailed to you
Email your PCB files and specifications to [email protected]. We’ll provide a precise quote and design recommendations within a few hours
