Design for manufacture(DFM)

WELCOME TO BICHENG

	Design For Manufacture

	Inner Layer

	Laminating

	Drill

	Etching

	Outer Layer

	Solder Mask

	Silkscreen

	Carbon Ink

	Peelable Mask

	Surface Finish

	Contour

	Special Tolerance

Serial NO.	Procedure	Item	Manufacturing capability
			Large volume（S<100 m2）	Middle volume （S<10 m2）	Prototype（S<1m2）
			Large volume（S<100 m2）	Middle volume （S<10 m2）	Prototype（S<1m2）
66	Contour process	Method of contour process	CNC milling, V-CUT, Break-out tap, break-out holes, Punching
67		Minimum router	0.8mm
68		Min.tolerance of contour	±0.15mm	±0.13mm	±0.1mm
69		Min.distance of milling contour(no copper exposure)	12mil	10mil	8mil
70		Angle of V-CUT	20、30、45、60 ±5 degree
71		Degree of symmetry of V-CUT	±6mil	±5mil	±4mil
72		Tolerance of residual thickness of V-CUT	±6mil	±5mil	±4mil
73		Tolerance of Chamfer angle of Gold finger	±5 degree	±5 degree	±5 degree
74		Tolerance of residual thickness of bevel edge of gold finger	±5mil	±5mil	±5mil
75		Min radius of inner corner	0.4mm
76		Min. distance from edge to V-Cut (no copper exposure)	18mil (1.6mm Thick, 20 degree V-groove cutter)	14mil(1.6mm Thick, 20 degree V-groove cutter)	12mil (1.6mm Thick, 20 degree V-groove cutter)
77			20mil (1.6mm Thick, 30 degree V-groove cutter)	18mil (1.6mm Thick, 30 degree V-groove cutter)	16mil (1.6mm Thick, 30 degree V-groove cutter)
78			24mil (1.6mm Thick, 45 degree V-groove cutter)	22mil (1.6mm Thick, 45 degree V-groove cutter)	20mil (1.6mm Thick, 45 degree V-groove cutter)
79			30mil (1.6mm Thick, 60 degree V-groove cutter)	28mil (1.6mm Thick, 60 degree V-groove cutter)	26mil (1.6mm Thick, 60 degree V-groove cutter)

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