PROCESS	Item	Unit	Limit Tolerance	Normal tolerance
Board cutting & thickness	Layer	/	1-6 layer	1-6 layer
	Layer	/	2-layer(rigid flex)	2-layer(rigid flex)
	cutting size: 250mm	mm	250*1000mm	250*500mm
	Min. thickness	mm	0.075mm(FPC)	0.10mm(FPC)
	Min. thickness	mm	0.3mm(rigid flex)	0.3mm(rigid flex)
Other auxiliary material	Adhesive stiffener	um	PSA:50um	PSA:50um
	hot setting adhesive	um	12.5/25/40um	12.5/25/40um
	PI stiffener	um	PI: 1.0-13mil	PI: 1.0-13mil
	Other stiffener type	/	steel, Al, silicon steel sheet
Drilling	Min. drilling hole size	mm	0.1	0.2
Drilling	hole diameter tolerance	mm	±0.075	±0.1
PTH	hole wall copper thickness	um	8/15/25	8/15/25
Exposure	Min line width/space	mm	0.05/0.05	0.075/0.075
	hole ring	mm	0.125	0.2
	offset tolerance	mm	0.1	0.15
	Line width tolerance	mm	±0.03	±0.04
	Distance between hole edge to outline	mm	≥0.4	≥0.5
Lamination	Coverlay tolerance	mm	0.15	0.2
	PI stiffener with outline	mm	±0.3	±0.3
	Sensitive PSA	mm	±0.3	±0.3
	FR4 location tolerance	mm	±0.3	±0.3
Ink	Soler mask thickness	um	8	15
Ink	Silk screen thickness	um	8	15
Profile	R angle for etching cutting die	mm	0.5	0.5
	Steel die tol.	mm	LS: ±0.075	LS: ±0.075
	Steel die tol.	mm	HS: ±0.01	HS: ±0.01
	Cutting die tol.	mm	Etching: ± 0.20	Etching: ± 0.30
	Cutting die tol.	mm	Wooden: ± 0.30	Wooden: ± 0.50
	Laser tol.	mm	± 0.05	± 0.05
	Offset tol. for fingers	mm	± 0.10	± 0.10
Surface treatment	Immersion gold	um	Ni: 2.0~5.0	Ni: 2.0~5.0
	Immersion gold	um	Au: 0.03~0.08	Au: 0.03~0.08
	Plating tin	um	8~20	8~20

About HighLeap Electronic

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1. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

2. why should you buy from us not from other suppliers?
Own manufacturing
Own assembly
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3. what services can we provide?
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