What is CEM-1

By Bester PCBA

Last Updated: 2023-09-25

Table of Contents

What is CEM-1

CEM-1 is a type of laminate material composed of a core made of paper impregnated with epoxy resin, with one outer layer consisting of glass fabric. This combination provides CEM-1 with a unique set of properties that make it suitable for certain applications.

CEM-1 has mechanical strength. The presence of the glass fabric layer enhances the overall rigidity and flexural strength of the material, making it more durable and resistant to bending or warping. This property is particularly advantageous in applications where the PCB may be subjected to mechanical stress or vibration.

CEM-1 is not suitable for through-plating. The paper core, although providing cost advantages, limits the material’s ability to support plated through-holes. As a result, CEM-1 is typically used in single-sided or double-sided PCBs that do not require complex interconnections.

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