Manufacturers - CNSMT.com

The following is the usual FPC stackup information. If you need custom FPC stackup, please make note and we will manufacture according to your requirement.
Polyimide (PI) is the most commonly used thermal curing insulating material in flexible circuit processing. The thickness range of the material is generally 12.5μm (0.5mil) and 125μm (5mil). Divided into with glue and without glue, the DK with glue is 3.5, and the DK without glue is 3.3.

FPC Stackup of PET (Transparent)

Thickness

0.11mm (single Layer)
0.2mm (2 Layers)
0.23mm (2 Layers)

Top coverlay	PET	25um
Top coverlay	Adhesive	25um
Top copper layer	Copper	18um (Finished copper thickness 18um)
	Adhesive	20um
	PET	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		113um

Top coverlay	PET	25um
Top coverlay	Adhesive	25um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	20um
	PET	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay	Adhesive	25um
Bottom coverlay	PET	25um
Total thickness		201um

Top coverlay	PET	25um
Top coverlay	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 41um)
	Adhesive	20um
	PET	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Bottom copper layer	Copper	35um (Finished copper thickness 41um)
Bottom coverlay	Adhesive	25um
Bottom coverlay	PET	25um
Total thickness		235um

FPC Stackup of thin FPC)

Thickness

0.025mm (Single Layer)
0.05mm (Single Layer)
0.08mm (2 Layers)

Top copper layer	Copper	9um
	PI	12.5um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		21.5um

Top coverlay	PI	12.5um
Top coverlay	Adhesive	12.5um
Top copper layer	Copper	9um (Finished copper thickness 15um)
	PI	12.5um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Bottom copper layer	Copper	9um (Finished copper thickness 15um)
Bottom coverlay	Adhesive	12.5um
Bottom coverlay	PI	12.5um
Total thickness		80.5um

Single Layer FPC Stackup)

Thickness

0.08mm
0.1mm
0.12mm
0.13mm
0.15mm
0.16mm
0.17mm
0.18mm
0.2mm

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	18um (Finished copper thickness 18um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		83.5um

Top coverlay (Yellow coverlay / Black coverlay))	PI	25um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Top copper layer	Copper	18um (Finished copper thickness 18um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		106um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	18um (Finished copper thickness 18um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		105um

Top coverlay (Yellow coverlay / Black coverlay))	PI	25um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 35um)
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		130um

Top coverlay (White coverlay))	PI	43um
Top coverlay (White coverlay))	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 35um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		128um

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	50um
Top copper layer	Copper	70um (Finished copper thickness 70um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		157.5um

Top coverlay (White coverlay))	PI	43um
Top coverlay (White coverlay))	Adhesive	25um
Top copper layer	Copper	70um (Finished copper thickness 70um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		163um

Top coverlay (White coverlay))	PI	43um
Top coverlay (White coverlay))	Adhesive	25um
Top copper layer	Copper	70um (Finished copper thickness 70um)
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		183um

Top coverlay	PI	25um
Top coverlay	Adhesive	45um
Top copper layer	Copper	88um (Finished copper thickness 88um)
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Total thickness		183um

2 Layers FPC Stackup)

Thickness

0.1mm
0.12mm
0.13mm
0.15mm
0.16mm
0.17mm
0.18mm
0.2mm
0.22mm
0.23mm
0.24mm
0.25mm
0.26mm
0.27mm
0.29mm
0.3mm
0.34mm
0.35mm
0.38mm

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		104um

4 Layers FPC Stackup)

Thickness

0.2mm
0.22mm
0.23mm
0.25mm
0.26mm
0.27mm
0.3mm
0.33mm

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		204um

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		216um

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		230um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (White coverlay))	Adhesive	18um
Bottom coverlay (White coverlay))	PI	31um
Total thickness		247um

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		268um

Top coverlay (Yellow coverlay / Black coverlay))	PI	25um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	25um
Total thickness		261um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (White coverlay))	Adhesive	18um
Bottom coverlay (White coverlay))	PI	31um
Total thickness		259um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (White coverlay))	Adhesive	18um
Bottom coverlay (White coverlay))	PI	31um
Total thickness		273um

Top coverlay (Yellow coverlay / Black coverlay))	PI	25um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	18um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	18um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	25um
Total thickness		299um

Top coverlay (Yellow coverlay / Black coverlay))	PI	25um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 41um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	35um (Finished copper thickness 41um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	25um
Total thickness		295um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (White coverlay))	Adhesive	18um
Bottom coverlay (White coverlay))	PI	31um
Total thickness		299um

Top coverlay (White coverlay))	PI	43um
Top coverlay (White coverlay))	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 41um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	35um (Finished copper thickness 41um)
Bottom coverlay (White coverlay))	Adhesive	25um
Bottom coverlay (White coverlay))	PI	43um
Total thickness		331um

4 Layers Rigid-Flex Stackup)

Thickness

1.6mm

	Rigid Part)		Flex Part)
	Top soldermask layer)	20um
Rigid-Top copper layer)	Copper	18um (Finished copper thickness 35um)
	FR4	680um	PI	12.5um
	Pure gum)	13um	Adhesive	15um
Flex-copper )2 Layer)	Copper	18um	Copper	18um
	Adhesive	13um	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um	Adhesive	13um
Flex-copper )3 Layer)	Copper	18um	Copper	18um
	Pure gum)	13um	Adhesive	15um
	FR4	680um	PI	12.5um
Rigid-Bottom copper layer)	Copper	18um (Finished copper thickness 35um)
	Bottom soldermask layer)	20um
	Total thickness	1549um	FPC Thickness	142um

6 Layers FPC Stackup)

Thickness

0.3mm
0.33mm
0.34mm
0.37mm
0.38mm
0.42mm

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	Coverlay)	27.5um
Inner) 4 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 5 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		293.5um

Top coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	Coverlay)	27.5um
Inner) 4 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 5 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	15um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	12.5um
Total thickness		331.5um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	12um (Finished copper thickness 18um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	Coverlay)	27.5um
Inner) 4 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 5 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	12um (Finished copper thickness 18um)
Bottom coverlay (White coverlay))	Adhesive	18um
Bottom coverlay (White coverlay))	PI	31um
Total thickness		336.5um

Top coverlay (White coverlay))	PI	31um
Top coverlay (White coverlay))	Adhesive	18um
Top copper layer	Copper	18um (Finished copper thickness 24um)
	Adhesive	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	Coverlay)	27.5um
Inner) 4 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 5 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	13um
Bottom copper layer	Copper	18um (Finished copper thickness 24um)
Bottom coverlay (White coverlay))	Adhesive	18um
Bottom coverlay (White coverlay))	PI	31um
Total thickness		374.5um

Top coverlay (Yellow coverlay / Black coverlay))	PI	25um
Top coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 41um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	Coverlay)	27.5um
Inner) 4 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 5 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	35um (Finished copper thickness 41um)
Bottom coverlay (Yellow coverlay / Black coverlay))	Adhesive	25um
Bottom coverlay (Yellow coverlay / Black coverlay))	PI	25um
Total thickness		384.5um

Top coverlay (White coverlay))	PI	43um
Top coverlay (White coverlay))	Adhesive	25um
Top copper layer	Copper	35um (Finished copper thickness 41um)
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Pure gum)	13um
Inner) 2 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 3 Layer)	Copper	12um
	Pure gum)	13um
	Coverlay)	27.5um
Inner) 4 Layer)	Copper	12um
	Adhesive	0um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Inner) 5 Layer)	Copper	12um
	Pure gum)	13um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	0um
Bottom copper layer	Copper	35um (Finished copper thickness 41um)
Bottom coverlay (White coverlay))	Adhesive	25um
Bottom coverlay (White coverlay))	PI	43um
Total thickness		420.5um

8-16 Layers FPC Stackup)

Thickness

0.45mm (8 Layers)
0.57mm (10 Layers)
0.68mm (12 Layers)
0.8mm (14 Layers)
0.91mm (16 Layers)

Top coverlay	PI	12.5um
Top coverlay	Adhesive	12.5um
Top copper layer	Copper	18um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 2 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 3 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 4 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 5 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 6 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 7 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Bottom copper layer	Copper	18um
Bottom coverlay	Adhesive	12.5um
Bottom coverlay	PI	12.5um
Total thickness		453um

Top coverlay	PI	12.5um
Top coverlay	Adhesive	12.5um
Top copper layer	Copper	18um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 2 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 3 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 4 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 5 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 6 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 7 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 8 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 9 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Bottom copper layer	Copper	18um
Bottom coverlay	Adhesive	12.5um
Bottom coverlay	PI	12.5um
Total thickness		567um

Top coverlay	PI	12.5um
Top coverlay	Adhesive	12.5um
Top copper layer	Copper	18um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 2 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 3 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 4 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 5 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 6 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 7 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 8 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 9 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 10 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 11 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Bottom copper layer	Copper	18um
Bottom coverlay	Adhesive	12.5um
Bottom coverlay	PI	12.5um
Total thickness		681um

Top coverlay	PI	12.5um
Top coverlay	Adhesive	12.5um
Top copper layer	Copper	18um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 2 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 3 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 4 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 5 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 6 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 7 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 8 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 9 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 10 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 11 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 12 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 13 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Bottom copper layer	Copper	18um
Bottom coverlay	Adhesive	12.5um
Bottom coverlay	PI	12.5um
Total thickness		795um

Top coverlay	PI	12.5um
Top coverlay	Adhesive	12.5um
Top copper layer	Copper	18um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 2 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 3 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 4 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 5 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 6 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 7 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
	Adhesive	20um
Inner) 8 Layer)	Copper	12um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 9 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 10 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 11 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 12 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 13 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 14 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Inner) 15 Layer)	Copper	12um
	Adhesive	20um
	PI	25um Dielectric constant 3.3~3.5 (The DK value is not absolute and will vary depending on the base material's models and thickness.)
Bottom copper layer	Copper	18um
Bottom coverlay	Adhesive	12.5um
Bottom coverlay	PI	12.5um
Total thickness		909um

Stackup of FPC with Airgap)

Thickness

0.16mm (2 Layers)
0.24mm (4 Layers)
0.37mm (6 Layers)
0.5mm (8 Layers)

PCB Instant Quote)

Stack-up for FPC