Metal Core PCBs

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Wednesday, August 31, 2011

Low CTE Boards

CTE is the Coefficient of Thermal Expansion.

Understanding CTE in metal core PCB fabrication is critical. Every material expands or contracts when its temperature changes.

CTE is very important in board design since multiple materials are often used in the final assembly, causing situations of different levels expansion/contraction. This, in turn, can cause stress on the overall board or the solder joints.