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FPC process capability

Process capability

Project	Content	Remarks
Product process	1-12 layer board /fpc flexible circuit board, soft and hard combination board, tinplate, gold-plated board, gold-plated board
Maximum size of plate	250mm*700mm
Maximum plate thickness	0.45±0.05
Minimum plate thickness	0.051~0.185 ±0.03
Thickness of base material copper foil	1/3oz、1/2oz、1oz
Minimum aperture	Finished aperture：0.08mm
Minimum line width and line spacing	Minimum line width：0.05mm、Minimum line spacing：0.05mm
Tolerance	Wire hole ± 10%, hole diameter +3mil, shape ± 0.05mm
Coating thickness	Gold plated plate: Ni layer thickness: 1-6um, Au layer thickness: 0.03-0.1um" Gold plate: thickness of Ni layer: 1-6um, thickness of Au layer: 0.03-0.2um“ Tinplate: SN layer thickness: 8-25um

Application scope of substrate

Category	Brand	Specifications	Place of Origin
Base material	Xinyang / Shengyi	Adhesive free substrate, halogen-free	Taiwan
Substrate / covering film	Tai Hong	Adhesive base material, adhesive free base material, halogen-free	Taiwan
Substrate / covering film	Generous and benevolent	Adhesive base material, halogen-free	Taiwan
Substrate / covering film	Yasen	Adhesive base material, adhesive free base material, halogen-free	Taiwan
Gummed paper	3M	3M9077、9460、467、468	U.S.A
Gummed paper	Ridong	5919 high temperature resistance	Japan
Gummed paper	SONY	D3410 heat curing adhesive	Japan

Process capability

Project	Technical capability	Project	Tolerance
Number of layers	1-12 layers of FPC (2-12 layers of soft and hard bonding plate)	Lamination tolerance of covering film	±0.2mm
Maximum mosaic size	250900mm (5001200mm special)	PI reinforcement includes FR4	±0.2mm
Minimum aperture	0.1mm	Punching burr of covering film	≤0.1mm
Bottom copper thickness	12um/18um/35um/70um	Electromagnetic film alignment tolerance	±0.35mm
Insulation thickness	12.5um/25um/50um	Steel sheet reinforcement tolerance	0.1mm
Minimum plate thickness	0.09	Misalignment tolerance between reinforcing plate hole and FPC hole	≤0.05mm
Minimum line width and line spacing	0.045	Drilling tolerance	≤0.02mm
Line tolerance	±0.02mm	Thickness tolerance of single panel gold deposit	1-2um
Profile tolerance (edge to edge)	Precision mold ± 0.05mm/ ordinary mold ± 0.1mm	Thickness tolerance of single panel nickel deposition	0.025-0.075um
Nickel gold plating thickness	1-3um	Thickness tolerance of gold deposit of double-sided plate	2-3um
Thickness of chemical precipitation nickel gold	0.02-0.075um	Thickness tolerance of gold and nickel on double-sided plate	0.025-0.075um
Wire to profile edge	0.05mm	Tolerance of etched steel sheet	±0.03mm
Thickness of electroplated pure tin	1-15um	Tolerance of punching steel sheet	±0.05mm