Rigid PCB vs. Flex PCB(FR-4 Rigid PCB)

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Feature	Rigid PCB (FR-4)	Flex PCB
Structure	Solid, non-flexing	Bendable, foldable
Material Base	FR-4 epoxy glass	Polyimide (PI), PET
Thickness Range	0.8 mm – 3.2 mm	0.05 mm – 0.2 mm
Flexibility	Fixed shape	Dynamic/static flex
Typical Use Cases	Industrial, automotive, consumer	Wearables, aerospace, medical

Rigid PCB vs. Flex PCB(FR-4 Rigid PCB)

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