OEM Multilayer PCB Board under UL, CQC, TS16949, ISO14000, ROHS certification
Key Specifications/Special Features:
| Count : | 4 Layers | 
| Base Material : | FR4 | 
| Copper Thickness : | 1 oz inner layer / 1oz outlayer | 
| Board Thickness : | 1.20 mm | 
| Cooper in holes : | min 20um | 
| Min. Hole Size : | 8mil / 0.2mm | 
| Min. Line Width : | 4 / 4 mil | 
| Min. Line Spacing : | 4 / 4 mil | 
| Surface Finishing : | ENIG (AU:2U'') | 
| Certificate: | UL, CQC, TS16949, ISO14000, ROHS | 
Advantages :
 • Strict product liability, taking IPC-A-160 standard
 • Engineering pretreatment before production
 • Production process control (5Ms)
 • 100% E-test, 100% visual inspection, including IQC, IPQC, FQC, OQC
 • 100% AOI inspection, including X-ray, 3D microscope and ICT
 • High-voltage test, impedance control test
 • Micro section, soldering capacity, thermal stress test, shocking test
 • In-house PCB production
 • No minimum order quantity and free sample
 • Focus on low to medium volume production
 • Quick and on-time delivery
Technical Capability:
| ITEMS | Capability | 
| Max. layer count | 28L | 
| Min. line widty | 0.08mm | 
| Min. line spacing | 0.08mm | 
| Min. hole size | 0.15mm | 
| Board thickness | 0.4-6.0mm | 
| Max. boardsize | 520×620mm | 
| (PTH) Hole size tolerance(PTH) | ±0.075mm | 
| (NPTH) Hole size tolerance(NPTH) ) | ±0.05mm | 
| Holeposition tolerance(Routing) | ±0.1mm | 
| Outline tolerance(Punching) | ±0.1mm | 
FAQ :
1. How do ACCPCB ensure quality?
Our high quality standard is achieved with the following.
1.1 The process is strictly controlled under ISO 9001:2008 standards.
 1.2 Extensive use of software in managing the production process
 1.3 State-of-art testing equipments and tools. E.g. Flying Probe,e-Testing, X-ray Inspection, AOI (Automated Optical Inspector) .
 1.4.Dedicated quality assurance team with failure case analysis process
 
 2. What kinds of boards can ACCPCB process?
Common FR4, high-TG and halogen-free boards, Rogers, Arlon, Telfon, aluminum/copper-based boards, PI, etc.
 3. What data are needed for PCB production?
PCB Gerber files with RS-274-X format.
 4. What’s the typical process flow for multi-layer PCB?
Material cutting → Inner dry film → inner etching → Inner AOI → Multi-bond→ Layer stack up Pressing → Drilling → PTH → Panel Plating → Outer Dry Film → Pattern Plating → Outer etching → Outer AOI → Solder Mask → Component Mark → Surface finish → Routing → E/T → Visual Inspection.
 5. How many types of surface finish ACCPCB can do?
the leader has the full series of surface finish, such as: ENIG, OSP, LF-HASL, gold plating (soft/hard), immersion silver, Tin, silver plating, immersion tin plating, carbon ink and etc. .. OSP, ENIG, OSP + ENIG commonly used on the HDI, we usually recommend that you use a client or OSP OSP + ENIG if BGA PAD size less than 0.3 mm.
  
   