Double-Sided PCB Manufacturer
Get custom double-sided PCBs with reliable plated through-holes, precise copper routing, and flexible material options. LZJPCB supports FR4, CEM-1, and metal-core PCB manufacturing, with custom drilling, surface finishes, and PCB assembly from prototype to mass production.
- FR4 & Metal-Core PCB Options
- Precision Drilling & PTH Plating
- Custom Copper Weight & Surface Finishes
- SMT, THT & Mixed PCB Assembly
2-Layer PCB Design, Stackup & Thickness
Optimize your double-sided PCB for reliable signal routing, ground connections, and mechanical fit with engineering support before manufacturing.
2-Layer PCB Stackup & Ground Plane Design
Improve your circuit's routing and grounding with coordinated top and bottom copper layers, plated vias, and DFM review.
- Top & bottom copper layer routing
- Ground planes & return path review
- Plated through-holes & via connections
- Trace width, spacing & impedance review
2-Layer PCB Thickness
Get your double-sided PCBs manufactured to fit your enclosures, connectors, and mechanical assembly requirements.
- FR4 thickness: 0.4–4.0 mm
- Standard 1.6 mm board option
- Custom copper weight & stackup
- Board thickness & dimensional tolerances
Double-Sided PCB Materials & Construction
Choose the right PCB materials, copper construction, and surface finishes for your electrical, mechanical, and assembly requirements.
Double-Sided PCB Materials & Plated Through-Holes
Get reliable electrical connections between both copper layers with precision drilling, through-hole plating, and material options matched to your design.
- FR4 & High-Tg Laminate Options
- Top & Bottom Copper Circuitry
- Plated Through-Holes (PTH) & Vias
- Custom Solder Mask & Surface Finishes
Double-Sided PCB Manufacturing Process
See how your double-sided PCBs are manufactured with precise drilling, copper plating, circuit imaging, and quality testing to ensure reliable connections between both layers.
From Copper-Clad Laminate to Finished 2-Layer PCB
Your PCB goes through controlled fabrication and inspection to maintain circuit accuracy, reliable plated holes, and consistent quality.
FR4 laminate selection, copper thickness & panel cutting
Precision component holes, vias & mounting holes
Electroless copper & copper electroplating for layer connections
Top and bottom circuit alignment & copper pattern formation
Circuit defect inspection, solder mask application & curing
ENIG, OSP, immersion tin, CNC routing & V-cut
100% open/short testing, dimensional & visual inspection
Double-Sided PCB Prototyping
Validate your 2-layer PCB design with fast prototyping, engineering support, and quality testing before moving into volume production.
Test Your 2-Layer PCB Design Before Mass Production
Get custom double-sided PCB prototypes to verify your routing, plated holes, dimensions, and assembly requirements before committing to larger orders.
- Design & DFM Review — Check copper routing, drill files & PTH requirements.
- Rapid PCB Prototyping — Custom FR4 boards, copper weights & surface finishes.
- Inspection & Testing — AOI, dimensions & 100% electrical testing.
- Prototype to Production — Validate your design and move into repeat orders.
Double-Sided PCB Assembly
Get your double-sided PCBs assembled with precise component placement, controlled soldering, and quality testing for reliable electrical connections.
Double-Sided SMT Assembly
Assemble components on both sides of your PCB with accurate placement and controlled reflow to reduce soldering defects and component misalignment.
- Single & Double-Sided SMT Placement
- 01005, QFN, BGA & Fine-Pitch Assembly
- Dual-Side Reflow & Thermal Control
- 3D SPI, AOI & X-ray Inspection
Through-Hole PCB Assembly
Combine surface-mount components, connectors, and through-hole devices with controlled assembly processes to protect solder joints and component reliability.
- SMT & THT Process Sequencing
- Wave, Selective & Hand Soldering
- Connector Alignment & Fixture Support
- Electrical & Functional Testing
Double-Sided PCB Applications
Get custom double-sided PCBs manufactured for your control, power, sensor, and electronic products, with flexible routing, reliable interconnections, and assembly support.
Industrial Control PCBs
Connect controllers, relays, terminals, and I/O modules with double-sided routing, plated through-holes, and SMT/THT assembly.
Power & Conversion PCBs
Support your power circuits with copper thickness, trace widths, electrical clearances, and thermal management matched to your current requirements.
Consumer Electronics PCBs
Fit displays, switches, connectors, and control circuits into compact products with custom board shapes and cost-effective two-layer construction.
Sensor & Interface PCBs
Connect sensors, communication interfaces, and signal circuits with suitable grounding, trace spacing, and precision component assembly.
Double-Sided PCB Quality Control & Testing
Reduce assembly failures with inspections covering both copper layers, plated through-holes, electrical connections, and finished board dimensions.
Quality Checks for Your Double-Sided PCBs
Verify your 2-layer PCB's circuit integrity and plated connections through manufacturing inspections and electrical testing before delivery.
Check FR4 laminate, copper thickness, and material specifications.
Detect open circuits, shorts, etching defects, and copper pattern misalignment.
Verify hole-wall copper thickness, plating quality, and interlayer connections.
Test continuity and isolation across both copper layers and plated vias.
Check hole sizes, board outlines, surface finishes, and solder mask quality.
Why Choose LZJPCB as Your Double-Sided PCB Manufacturer
With 20 years of PCB manufacturing experience, 50+ engineers, and four production bases, LZJPCB supports your double-sided PCB projects from prototypes to mass production.
Get your double-sided PCBs manufactured with precise through-hole plating, cost-efficient production, and integrated PCB assembly.
From engineering review and DFM through fabrication, assembly, and repeat production — LZJPCB keeps the same released construction consistent across every order.
- Precision Double-Sided PCB Manufacturing — Get reliable interlayer connections with controlled PTH plating, copper pattern alignment, and 100% electrical testing.
- Reduce Your PCB & Assembly Costs — Optimize your 2-layer PCB materials, copper layout, and panelization while combining fabrication, SMT, and THT assembly under one supplier.
- From Prototypes to Repeat Production — Move from sample validation to volume orders with consistent PCB specifications, production processes, and quality control.
Double-Sided PCB Case Studies
See how custom 2-layer PCB manufacturing and assembly address complex routing, electrical connections, and power requirements.
Industrial Control PCB Manufacturing & Assembly
Fit 18 I/O connections into a compact 2-layer motor controller board with reliable plated through-hole connections.
Double-sided routing with precision PTH plating, optimized trace layout, and SMT/THT mixed assembly.
Passed electrical tests on 800 units with consistent plating quality and dimensional accuracy.
Double-Sided Power Interface PCB
Handle 24V/15A current loads while maintaining adequate trace widths, electrical clearances, and thermal performance on a 2-layer board.
2 oz copper with optimized power traces, electrical clearance verification, and 100% electrical inspection.
Passed electrical inspection on 300 boards with verified copper specifications and clearance compliance.
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Frequently Asked Questions About Double-Sided PCB
Choose the lowest layer count that preserves routing, references, current and assembly requirements.
Single-Sided vs Double-Sided PCB
Choose single-sided when one conductor layer can complete the circuit and the assembly / jumper strategy remains practical. Choose double-sided when the design needs copper on both faces and plated interconnection for more routing flexibility or component access.
- Decision
- Single-Sided PCB
- Double-Sided PCB
- Conductor layers
- One circuit copper side
- Two circuit copper sides
- Interconnection
- No layer-to-layer via requirement
- PTH / vias connect required features
- Routing density
- Lowest, often needs jumpers or simpler placement
- Higher flexibility without internal layers
- Commercial fit
- Simpler construction when design permits
- Added process justified by routing / assembly needs
2-Layer vs 4-Layer PCB
Use two layers when routing and reference copper can coexist on the outer surfaces. Move to four layers when the design benefits from internal continuous references, more routing density or a more controlled power / return structure.
- Decision
- 2-Layer PCB
- 4-Layer PCB
- Routing space
- Two external routing surfaces
- Additional internal-layer options
- Reference strategy
- Ground / power share surface area with routing
- Internal continuous references can be assigned
- EMI / return paths
- Depends strongly on surface layout continuity
- Can provide closer, more continuous reference paths
- Cost decision
- Lower construction complexity when technically sufficient
- Higher construction cost may reduce layout compromises
What is a double-sided PCB?
Is 1.6 mm the standard 2-layer PCB thickness?
Can components be assembled on both sides?
What affects double-sided PCB price?
Send your Gerber files, stackup, material requirements, and quantity. Receive a manufacturing scope with fixed pricing and lead time.
