A BOM (Bill of Materials) with reference designators: component description, manufacturer’s name and part number.
PCB Gerber files.
A PCB fabrication drawing and PCBA assembly drawing.
Test procedures.
Any mechanical restrictions such as assembly height requirements

PCB board manufacture and PCBA service:
- o PCB board made, circuit board parts purchased by us
- o Electronic testing circuit board or PCBA
- o Fast delivery, anti-static package
- o RoHS Directive-compliant, lead-free
- o One stop service from PCB design, PCB layout, PCB manufacture, components purchasing, PCB assembly, test, packing and PCB delivery
- o Eleectronic manufacturing service
Detailed terms for PCB assembly:
- o Technical requirement:
  - § Professional surface-mounting and through-hole soldering technology
  - § Various sizes like 1206, 0805, 0603 components SMT technology
  - § ICT (In Circuit Test), FCT (Functional Circuit Test) technology
  - § PCB assembly with UL, CE, FCC, RoHS approval
  - § Nitrogen gas reflow soldering technology for SMT
  - § High standard SMT and solder assembly line
  - § High density interconnected board placement technology capacity
- o Quote requirement:
  - § Gerber file and Bom list
  - § Clear pics of pcba or pcba sample for us
  - § Test method for PCBA
- o PCB specification:
  - § Layer: 1 to 12 layers
  - § Material: FR-4, CEM-1, CEM-3, Hight TG, FR4 halogen free, FR-1, FR-2,Aluminum etc.
  - § Max. finished thickness: 0.2 to 4.0mm (0.02 ~ 0.25″)
  - § Max. finished board side: 500 x 500mm (20 x 20”)
  - § Min. drilled hole size: 0.25mm (10mil)
  - § Min. line width: 0.10mm (4mil)
  - § Min. line spacing: 0.10mm (4mil)
  - § Surface finish/treatment: HALS/HALS lead free, chemical tin, chemical gold, immersion gold, plating gold
  - § Copper thickness: 0.5 to 3.0 oz
  - § Solder mask color: green/black/white/red/blue
  - § Inner packing: plastic bag
  - § Outer packing: standard carton packing
  - § Hole tolerance: PTH: ±0.076, NTPH: ±0.05
  - § Certificate: UL, ISO 9001, ISO 14001, RoHS,UL
  - § Profiling punching: routing, V-cut, beveling
  - § Providing OEM service to all sorts of printed circuit board assembly

Min Hole Size	0.20mm/8mil
S/M Pitch	0.08mm/3mil
Outline Tolerance	±0.1mm/±4mil
Hole Position Deviation	±0.05mm/±2mil
NPTH Hole Dia Tolerance	±0.025mm/±1mil
PTH Dia Tolerance	±0.05mm/±2mil
Solder mask thickness	0.0.18mm
Peelable	0.3mm-0.5mm
Warpage	0.075-1.5%
Impedance control	+/-10%

pcb solder mask

solder mask pcb

solder mask dielectric constant

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