Sunking PCB

Capabilities

Advanced production equipment and mature manufacturing processes ensure the quality and reliability of every PCB

Manufacturing Parameters

Comprehensive manufacturing capabilities from basic parameters to special processes

Basic Parameters

Basic Parameters
Layer Count2–40 layers; up to 64 (on request)
Max Board Size1250×570mm
Board Thickness0.2mm-6.0mm
Copper Weight0.5oz->12oz
Min Trace/Space2mil/2mil
Min Laser Hole Diameter0.075mm

Drilling Capability

Drilling Capability
Min Finished Mechanical Hole0.15mm
Laser Drill Min0.075mm
Hole Tolerance±0.05mm
Position Accuracy±0.025mm
Aspect Ratio10:1 max
Back Drill Control±0.05mm

Surface Finish

Surface Finish
HASL (Leaded)✓
Lead-Free HASL✓
ENIG✓
OSP✓
Immersion Tin✓
Hard Gold Plating✓

Special Processes

Special Processes
Impedance Control±5% (±10% std)
Blind/Buried ViasAny-layer
Resin Plug✓
Copper Paste Fill✓
Half-hole (Castellated)✓
Gold Fingers✓

Manufacturing Process Flow

Complete manufacturing process from raw materials to finished products with strict quality control at every step

01
Cutting
02
Inner Layer
03
Lamination
04
Drilling
05
Plating
06
Outer Layer
07
Solder Mask
08
Surface Finish
09
Profiling
10
Testing

Key Equipment

International top-brand equipment ensuring manufacturing precision and product quality

Hitachi High-Speed Drilling Machine

Hitachi High-Speed Drilling Machine

Brand: Hitachi

Han's Laser Drilling Machine

Han's Laser Drilling Machine

Brand: Han's Laser

LDI Laser Direct Imaging

LDI Laser Direct Imaging

Brand: Orbotech

VCP Vertical Continuous Plating

VCP Vertical Continuous Plating

Brand: Atotech

AOI Automatic Optical Inspection

AOI Automatic Optical Inspection

Brand: Orbotech

Flying Probe Tester

Flying Probe Tester

Brand: ATG

Vacuum Lamination Press

Vacuum Lamination Press

Brand: Burkle

Horizontal Etching Line

Horizontal Etching Line

Brand: Schmid

Solder Mask Screen Printer

Solder Mask Screen Printer

Brand: Atma

X-Ray Drilling Target Machine

X-Ray Drilling Target Machine

Brand: Pluritec

CNC Routing Machine

CNC Routing Machine

Brand: Schmoll

Automatic Exposure Machine

Automatic Exposure Machine

Brand: ORC

Quality Control

Full-process quality control ensuring the reliability of every PCB

IPC
IPC-A-600

Class 2/3 Acceptance

100%
Full Coverage

Electrical Test Coverage

<0.1%
Ultra-Low Defects

Defect Rate

Detailed Manufacturing Specifications

Comprehensive capabilities covering Standard, Advanced, and R&D levels

FeatureStandardAdvancedR&D
Layers Count4064 (on request)64 (on request)
Min Board Thickness (w/ solder mask)0.6mm0.40mm0.20mm
Max Board Thickness4mm6mm6mm
Min Board Size50×50mm30×30mm5×5mm
Max Board Size600×570mm610×1100mm1250×570mm
Min Line/Space (Inner)4/4mil3/3mil2/2mil
Min Line/Space (Outer)4/4mil3/3mil2/2mil
Min Finished Mechanical Hole0.15mm0.15mm0.15mm
Max Aspect Ratio (PTH)10:110:110:1
Max Copper (Outer)3oz12oz>12oz
Max Copper (Inner)3oz12oz>12oz
Backdrill Diameter0.50mm0.35mm0.25mm
Min Laser Hole0.075mm0.075mm0.075mm
HDI 1+N+1✓✓✓
HDI 2+N+2✓✓✓
HDI 3+N+3✓✓✓
HDI 4+N+4✓✓✓
HDI 5+N+5✓✓✓
Any Layer—✓✓
Rigid-Flex✓✓✓
IMS Boards✓✓✓
Embedded Components—✓✓

Surface Finish Comparison

Choose the most suitable surface finish for your application

CharacteristicsHASLLF-HASLENIGENEPIGHard GoldSilver
CostLowLowMediumHighHighMedium
Pad FlatnessDomeDomeFlatFlatFlatFlat
Fine Pitch SMT✗✗✓✓✓✓
BGA/μBGA✗✗✓✓✓✓
Wire Bonding✗✗Al✓✗✗
Connector/Contact✗✗✓✓✓✗
RoHS✗✓✓✓✓✓
Shelf Life1+ yr1+ yr1+ yr1+ yr1+ yr9-12 mo
Solder JointExcellentGoodGoodGoodPoorExcellent

Shipping & Delivery

Global delivery, fast turnaround, secure packaging

Lead Times

Rush Prototype24-48h
Standard Prototype3-5 days
Standard Production5-7 days
Complex Boards10-15 days

International Express

DHL Express (2-4 days)
FedEx (2-5 days)
UPS (3-5 days)
TNT (3-6 days)
EMS (5-10 days)

Secure Packaging

✓Vacuum sealed moisture barrier
✓Anti-static bags (ESD)
✓Foam cushion protection
✓Full shipment tracking
✓Worldwide shipping via DHL / FedEx / UPS / TNT / EMS

Domestic (China): SF Express / JD Logistics / Deppon — Next-day in Guangdong, 2-3 days nationwide

Certifications & Compliance

Certified by multiple international authorities for trusted quality

ISO 9001:2015
ISO 9001:2015
ISO 14001:2015
ISO 14001:2015
IATF 16949
IATF 16949
ISO 13485:2016
ISO 13485:2016
UL
UL
ISO 9001:2015
Quality Management System (SGS)
ISO 14001:2015
Environmental Management System (SGS)
IATF 16949
Automotive Quality Management (SGS)
ISO 13485:2016
Medical device QMS, held by the Ji'an base (NQA)
UL (USA)
File No: ZPMV2.E326765
UL (Canada)
File No: ZPMV8.E326765
RoHS
EU Restriction of Hazardous Substances
IPC-A-600 Class 2
PCB Acceptability Standard + UL796

Have special process requirements?

Our engineering team can evaluate feasibility and provide optimal solutions