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Double Layer
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Rigid Double layer PCB

Double layer PCB generally uses FR-4 material and configures double sided circuits.

It is very common and widely used with the structure allowing conduction between layers with conductor layer at the inner wall of the hole.

It is priced as medium to low.

Manufacturing Specifications

ITEM		Rigid-Double
Min. Pattern / Width space		100/100㎛
Min. Hole Diameter	Mechanical	Φ0.25
Max. Layer Count		2Layer
Board Thickness		0.4 ~ 2.0mm
Copper Clad	Min.	1/3 oz(12㎛)
Copper Clad	Max.	2 oz(70㎛)
Plating Min Thickness		20 ± 5㎛
Materials		CEM-3
		FR-4 / High Tg
		Halogen Free
		Other
Surface treatment	OSP	0.3 ~ 0.45㎛
	HASL	Land : 2 ~ 80㎛ / Edge : 2 ~ 25㎛
	Chemical Gold	Ni : 3.0㎛ / Au : 0.03㎛
	Other	-