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CEM PCB Boards

Product Specification:
  • Material: CEM-1/CEM-3
  • Tg:  110-135℃
  • Thickness: 0.8-1.6mm
  • Thermal Conductivity: 1.0-2.0w/mk
  • Surface Finish: Hasl LF, ENIG, etc

Manufacturing CEM PCB Here

CEM PCB (Composite Epoxy Material) means a group of composite materials typically made from woven glass fabric surfaces and non-woven glass core combined with epoxy synthetic resin (from Wikipedia),  in which CEM-3 is a composite fiberglass material developed on the basis of FR4, now that in the PCB manufacturing, it can almost replace FR4, especially for 2-layer PCB. We know there are some others in the same series, such as CEM-1, CEM-2, CEM-4, CEM-5, of which CEM1 is somewhere another replacement of FR4, but CEM-1 is a paper-based laminate, which is not good for plated through hole, so can only be used for single sided PCB.




 PCB Type: Rigid circuit board  Layer Count: 1-2
 Base Material: CEM-1/CEM-3  Surface Finish: Hasl LF, ENIG, OSP, IAg, etc
 Thickness: 0.8-1.6mm  Soldermask Color: Black, White, Green, Blue, Red, Yellow, etc
 Tg: 110-135℃  CTI: >600V
 Thermal Conductivity: 1.0-2.0w/mk



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Terms & Conditions

  1. Payment Terms: By T/T  30 days after shipping
  2. Payment Methods: T/T or Paypal
  3. Price Terms: FOB, CIF+Delivery, DDU, DAP
  4. Shipment Methods: UPS, DHL, TNT, FEDEX, BY SEA, BY TRAIN, or BY AIR
  5. Inspection Criteria: IPC 6012 at AQL 0.65%
  6. PCB Package: Anti-Static Bags
  7. Production time starts from EQ confirmed




Q1: What is the difference between CEM PCB & FR4?

The FR-4 material is generally composed of epoxy resin and woven glass fiber, and CEM-3 uses a combination of woven glass fiber and non-woven glass core plus resin filling. The CEM-3 material possesses relatively good performance but the flexural strength is weaker than FR4 and coefficient of thermal expansion is greater than FR-4.

Q2: What is the advantage of CEM PCB?

CEM PCB (CEM-3) can achieve similar levels of mechanical and electrical properties as FR-4 PCB, the through-hole properties are comparable, and the production cost is lower, so it can replace FR-4 to a large extent.

Q3: What’s the application of CEM PCB?

Computer peripherals, home appliances, automotive products, CEM PCB (CEM-3) with high thermal conductivity can also be used for LED lighting or high-power products.

Q4: What are needed to make a CEM PCB?

Your Gerber file (RS-274-X).




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