Quality Assurance

Uncompromising
Quality Standards

Every board leaving our factory is inspected, tested, and verified against the strictest industry standards. ISO9001, UL, and RoHS certified — with IPC Class 2/3 compliance and 100% AOI coverage across all SMT lines.

View Certifications
ISO9001:2015
UL Certified
RoHS Compliant
REACH Compliant
IPC Class 2/3
IATF 16949
ISO 14001:2015
100%
AOI Coverage
On all SMT lines, every board
3x
Quality Checks
Per product, per production run
95%+
Customer Satisfaction
Based on post-delivery surveys
>99.2%
Lot Acceptance Rate
Based on 2024 annual data
>98.5%
On-Time Delivery
Across all product categories
<0.3%
Customer RMA Rate
Within 12 months of shipment

Quality Certifications

HUAXING holds globally recognized certifications across quality, safety, environmental, and automotive standards — audited regularly by SGS, UL, and other accredited bodies.

ISO 9001:2015

Quality Management System

Certified for PCB design, fabrication, assembly, and test services. Audited annually by SGS — covering all production stages from incoming materials to final shipment.

UL Certification

PCB Safety Standard

UL 796 recognized for PCB fabrication. Suitable for end products requiring UL component recognition and safety compliance.

RoHS & REACH

Hazardous Substance Compliance

All lead-free assembly lines are RoHS-compliant. Full material declaration reports available per board. Halide-free fluxes used across SMT lines.

IPC Class 2 / 3

Industry Standards Compliance

All production follows IPC-A-600, IPC-6012, IPC-A-610, and J-STD-001. Class 3 available for high-reliability applications.

ITAR Compliance

International Traffic in Arms

ITAR-compliant facility procedures for defense and aerospace projects. Secure handling of controlled technical data.

ISO 14001:2015

Environmental Management

EMS certified — waste management, lead-free processing, and environmental controls in place across the 45,000 m² facility.

Inspection Process Flow

Eight-stage quality system covering every step from incoming materials to outgoing shipment. Each board goes through at least three rigorous quality checks before delivery.

01

Incoming QC (IQC)

Raw PCBs and components inspected upon arrival. Bare boards undergo visual inspection, dimensional verification, and coupon testing. Components checked for date code, quantity, and solderability.

02

Solder Paste Inspection (SPI)

3D SPI (Koh Young) measures paste volume, area, height, and alignment on every board post-printing. Out-of-spec prints trigger automatic stencil cleaning and reprint. Reports available per panel.

03

Automated Optical Inspection (AOI)

Every board passes through 3D AOI (Omron / SAKI) after reflow — checking component presence, polarity, alignment, tombstoning, and solder joint quality. Defective boards flagged and routed to repair.

04

X-Ray Inspection

BGA, QFN, and other hidden-joint components inspected via Nordson DAGE digital X-ray. Void percentage, solder ball shape, and bridging analyzed per J-STD-001. Minimum 5 boards per batch sampled.

05

In-Circuit Testing (ICT)

Agilent i3070 fixtures test opens, shorts, resistor/capacitor values, diode orientation, and basic IC connectivity. Full pass/fail reports generated per board with traceable logging.

06

Functional Testing (FCT)

Custom test jigs simulate real-world operating conditions — power-on tests, signal integrity checks, firmware loading, and system-level validation. Test scripts developed with your engineering team.

07

Final Visual Inspection (FVI)

IPC-A-610 Class 2/3 visual criteria applied to every board before packing. Documentation includes inspection stamp, serial number (if requested), and digital photo archive for full traceability.

08

Outgoing QC (OQC)

Final verification of packaging, labeling, quantity, and documentation (CoC, test reports, shipping manifest). Lot acceptance sampling per ANSI/ASQ Z1.4 AQL standards.

Testing Capabilities

Comprehensive testing infrastructure covering every stage of production — from solder paste inspection through functional validation. Every board is tested, every joint verified.

Automated Optical Inspection (AOI)

Systems: Omron VT-RNS (3D inline), SAKI BF-18D (2D/3D hybrid)
Coverage: 100% of all boards on all SMT lines
Resolution: 15μm, detects missing/polarity/shifted/tombstoned components

X-Ray Inspection

Systems: Nordson DAGE XD7600NT (digital X-ray)
Coverage: BGA, QFN, DFN, and all hidden-solder-joint packages
Resolution: Void percentage analysis per J-STD-001, bridge detection, ball shape

Flying Probe Testing

Systems: Takaya APT-1500F (4-head simultaneous)
Coverage: Opens, shorts, resistors, capacitors, diodes, inductors, basic ICs
Resolution: No fixture required — ideal for prototypes and medium-volume runs

In-Circuit Testing (ICT)

Systems: Agilent i3070 (3,072 test points)
Coverage: Opens, shorts, resistor/capacitor values, diode orientation, IC connectivity
Resolution: Full test reports per board with pass/fail logging and traceability

Functional Testing (FCT)

Systems: Custom test jigs & automated test equipment
Coverage: Power-on, signal integrity, firmware loading, system-level validation
Resolution: Test scripts developed collaboratively with your engineering team

Solder Paste Inspection (SPI)

Systems: Koh Young 3D SPI (inline)
Coverage: 100% of boards — paste volume, area, height, alignment measurement
Resolution: ±12μm print repeatability, automatic stencil cleaning trigger
30,000+
Boards Inspected Daily
500+
Inspection Points per Board
15+
Years of QC Data

Our Quality Commitment

Quality is not a department at HUAXING — it is embedded in every process, every machine, and every person on the factory floor. We believe in doing it right the first time.

3x Rigorous Quality Checks

Every product undergoes a minimum of three independent quality checks before shipment — inline AOI, electrical test, and final visual inspection.

Full Traceability

Every board is serialized and tracked through production. Digital photo archives, test reports, and material certificates accompany each shipment.

Continuous Improvement

Monthly quality reviews, corrective action tracking (8D/CAPA), and annual internal audits ensure our processes only get better over time.

Quality by the Numbers

Customer Satisfaction95%+
On-Time Delivery98.5%
First-Pass Yield97%+
Lot Acceptance Rate99.2%

Quality metrics audited quarterly. Full reports available upon request.

Experience the HUAXING Quality Difference

Upload your Gerber files and BOM for a free, no-obligation quote within 24 hours. Every project comes with full DFM review and quality documentation.

Zero MOQ · Free DFM Review · ISO9001 & UL Certified · IPC Class 2/3 · 24/7 Customer Support