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FAQ

What are the raw material main characteristics of PCB?

The following are some of the main characteristics to take note of when comparing properties of different laminates:
What are the raw material main characteristics of PCB?
Tg = Glass Transition Temperature – Temperature at which a critical change of physical properties will occur. In the case of laminates, it transitions from a hard, glassy material into a soft, rubbery material

Td = Decomposition Temperature - Temperature at which the laminate chemically decomposes

Dk = Dielectric Constant (also referred to as εr in electromagnetics) – Indicates the relative permittivity of an insulator material, which refers to its ability to store electrical energy in an electric field. For insulating purposes, a material with lower dielectric constant is better and in RF applications a higher dielectric constant may be desirable

Df = Dissipation Factor – Indicates the efficiency of an insulating material by showing the rate of energy loss for a certain mode of oscillation, such as mechanical, electrical, or electromechanical oscillation

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