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Custom Carbon PCB Board, Carbon Printing Circuit Board OEM PCB Manufacturer

Place of origin: China
Material: Fr4
Board thickness: 1.6mm
Offer:
Range of copper thickness: 1oz

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Carbon PCB Process Specification

Carbon PCB Manufacturing & Technical Specifications

Substrate Cutting: Cut FR4 rigid / PI FPC material as per drawings and remove edge burrs.

Copper Surface Pretreatment: Treat copper foil to enhance carbon ink adherence.

Carbon Ink Screen Printing: Print resistive carbon traces to construct potentiometer sensing paths.

Carbon Layer Baking: Low temp curing ensures homogeneous carbon film and steady resistance.

Solder Mask Printing: Apply green solder mask or PI coverlay for insulation protection.

Legend Printing: Print part codes and identification marks.

Drilling & Profiling: Drill holes, punch or route custom shapes such as rings, arcs and gamepad layouts.

Resistance Testing: 100% check resistance and connectivity, filter defective products.

Final Inspection & Packing: Inspect for scratches and open circuits, vacuum moisture-proof packaging.

Working principle: Print conductive carbon paste on etched PCB substrates,

cure under heat to form resistive carbon traces for contact position sensing.

Game Controller Carbon PCB (PS2, XBOX compatible)

Resistance: 1KΩ - 1MΩ | Tolerance ±10%

Heat resistance: 260℃±5℃, 5 sec, △TR ≤ ±50%

Cycle life: ≥1 million cycles

Automotive Carbon PCB (Wiper, light, AC control parts)

Resistance: 1KΩ -1MΩ | Tolerance ±1%

Linearity error: ±1%

TCR: ±800PPM (-40℃ ~ +85℃)

Cycle life: ≥1 million cycles

Speed Control Carbon PCB

Resistance: 1Ω -3MΩ | Tolerance ±1%

Linearity error: ±1% Cycle life: ≥1 million cycles

Custom options: Custom shapes, arc carbon tracks, customized resistance

& tolerance for your sensing application.

Carbon PCB Application scenarios

Carbon printed potentiometer PCBs from our factory

serve a wide spectrum of electronic sensing solutions:

Position feedback assemblies for gamepad thumbsticks and joystick assemblies
Angular displacement detectors and rotary variable resistive sensors
Adjustment dials and regulating controls for domestic electrical appliances
Sensing and tuning components for compact portable medical devices
Conductive resistive circuit inserts for smart playthings and wireless remotes
Miniature adjustment and signal sensing sub-boards for automotive electronics

Carbon PCB Production Line

Carbon PCB full production workflow:

Our carbon PCB production is carried out in dust-free clean workshop.

After substrate pretreatment, precision screen printers print conductive

carbon ink onto PCB/FPC substrates.

Carbon layers go through low-temperature curing, then solder mask printing, routing,

100% resistance testing and final inspection.

We offer in-house one-stop service from carbon PCB prototype to mass order,

and support follow-up SMT PCBA assembly.

FR4 raw material incoming quality inspection
Drilling, routing and copper circuit etching of base PCB
Surface cleaning & dust removal
Screen printing conductive carbon oil on designated circuit area
High-temperature oven curing for carbon ink solidification
Electrical testing: resistance value, linearity & heat resistance inspection
Protective coating application
AOI visual inspection and final functional test We have full in-house production line,
strictly control carbon ink thickness and uniformity,
support custom carbon track pattern, prototype trial and mass volume manufacturing.

Contact Us

Website: www.xdpcba.com

Email: bluesky@xdpcba.com

Sales10@xdpcba.com

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