A Heavy Copper PCB,also known as a Thick Copper PCB, uses thicker copper conductors than astandard printed circuit board. Heavy copper commonly refers to copper weightsof 3 oz or more, although the exact specification depends onthe project.
The thicker copperenables the PCB to carry higher current, manage heat more effectively andwithstand greater electrical and mechanical stress.
Heavy Copper PCBs aredesigned for power circuits and high-current electronic systems. Depending onthe design, they can provide:
High-current transmission
Power distribution and conversion
Motor and actuator control
Battery charging and protection
Improved thermal management
Stronger plated holes and copper connections
Reliable operation under high electrical loads
Integration of power and control circuits
Antfield Heavy CopperPCBs can be used in:
Robot motor driver boards
Servo and joint-control systems
Power management units
Battery Management Systems (BMS)
Battery-charging circuits
High-current power modules
Industrial robot control cabinets
Humanoid robots and robot dogs
AGVs, AMRs and service robots
Higher current-carrying capacity
Better heat distribution
Stronger copper traces and plated holes
Improved reliability under thermal stress
Suitable for high-power components
Reduced need for external wiring in some designs
Supports compact power-system integration
Longer service life in demanding applications
Heavy Copper PCBs canbe customized according to project requirements, including:
Single-sided, double-sided and multilayer structures
Different inner- and outer-layer copper weights
Standard and high-Tg materials
Mixed heavy-copper and standard-copper layers
High-current trace and copper-plane designs
Controlled impedance when required
HASL, ENIG, OSP and other surface finishes
Prototype and volume production
SMT and through-hole assembly support
Reliable Heavy CopperPCB production requires careful attention to:
Required current capacity
Copper weight and trace width
Temperature-rise limits
Board thickness and layer stack-up
Copper balance
Clearance and creepage distances
Via size and current capacity
Component heat generation
Thermal expansion
Soldering and assembly requirements
Copper thickness shouldbe selected according to the operating current, allowable temperature rise, PCBstructure and installation environment.
Antfield reviews HeavyCopper PCB production files and technical requirements before manufacturing.Quality controls can include:
DFM and stack-up review
Material and copper-weight verification
Trace-width and spacing inspection
Copper-plating and hole-wall inspection
Cross-section analysis when required
Electrical continuity and isolation testing
Finished-board thickness and dimension checks
Surface-finish inspection
High-current or functional testing upon agreement
Final appearance and production traceability
Antfield providescustom Heavy Copper PCB manufacturing and PCBA services for robotic power,motor-control, battery and high-current applications.