Beijing Yichangfa Electronic Co,Ltd

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1. PCBA (assembly)

Production technology of PCB
HS code 85340010
Material FR--4, CEM--3,PTEE Teflon
Outer size Maximum 457mmx610mm
Thickness 0.4-3.2mm, 1.0mm, 1.2mm,1.6mm, 2.0mm are normal ones
Layers 2--12 (2,4,6,8 are normal) and 1-6 layers for flexible ...

2. Aluminium PCB

3. flexible pcb

Dimensional Capability
Line width/spacing +/-10%
PTH Diameter +/-0.003 inch (0.075mm)
Non-PTH Diameter +/-0.002 inch (0.050mm)
Hole Location +/-0.002 inch (0.050mm)
Hole to Edge Dimension +/-0.005 inch (0.125mm)
Edge ...

4. multilayer PCB

Design Range
Minimum drilled hole size (mechanical hole) : 8mil (0.2mm)
Minimum drilled hole size (laser hole) 4mil (0.1mm)
Line width/spacing (SMOBC) 4mil (100 micron)
Line width/spacing (Flash Gold) 3mil (75 micron)
Warpage ...

5. double side PCB

Product Finishing
Liquid photo-imageable solder mask (LPI)
Peelable solder mask
Conductive Carbon Ink
Hot Air Solder Leveled finish (HASL), with thickness of 80 to 1,000 microinches (2.0-25 micron)
Organic Solderability Preservatives: ...