Quality guaranteed

When producing PCB and manufacturing PCBA, the quality of the finished product will be your main concern.

To achieve the highest level of manufacturing quality, it is most important to find excellent manufacturers like Sanhuichuang who strictly follow quality control methods in the production of PCB and the manufacturing of PCBA.

Sanhuichuang Electronics Co., Ltd. in Shenzhen provides you with services for purchasing printed circuit boards, electronic components, and PCBA production assembly.

We will provide safe, effective, and reliable products, while delivering higher quality and value to our customers.

Sanhuichuang Electronics Co., Ltd. in Shenzhen has always been eager to achieve excellence in manufacturing and product control at various stages and has obtained recognition from major international certification bodies recognized by the global electronics industry.

Incoming Quality Control

For the quality assurance of raw materials, components, and outsourced processing parts, we only purchase from suppliers who are certified. Supplier qualification confirmation will be done by purchasing, quality, and engineering together. Only qualified suppliers can establish data entry into the ERP system, and then procurement can place orders for materials. Incoming inspection refers to the quality inspection and release of purchased raw materials, components, or outsourced processing parts, meaning that when the supplier sends out raw materials or components, a sampling inspection of the quality of raw materials or components is carried out, and a final decision is made on whether this batch of raw materials is acceptable for production. Choosing a reliable platform is an essential way to obtain high-quality products. Our various component and module suppliers can perfectly meet the requirements of customers.

Free DFM Check

At Sanhuichuang Electronics Co., Ltd. in Shenzhen, we provide customers with a free DFM check, which typically includes inspection of signal and mixed layers, power/ground inspection, drilling inspection, solder mask inspection, and silk screen inspection to ensure that every detail is correct. When our engineers identify any discrepancies with the original files, our dedicated sales representatives will immediately send an engineering query to the customer.

First Article Inspection

Mass production process release is the first article passing the quality inspection in the production line. First article production is produced according to production technical data after engineering and quality confirmation. The inspection system is a quality management system that integrates testing equipment and data platforms. The inspection procedure is set to be consistent with production technical data, issued by engineering. IPQC is responsible for the first article inspection and release by entering the product information into the first article inspection equipment. The inspection unit in the system will automatically test the first sample and compare the data in the BOM table to make an auto determination. This automated work process can reduce human errors, improve efficiency, save labor costs, and maintain records for quality traceability.

Automatic Optical Inspection (AOI)

Automatic Optical Inspection (AOI) testing is common in the SMT industry and is applicable to all circuit board production and PCBA assembly. The equipment is mainly used to judge component soldering issues by examining the exterior features of components. It can also inspect component colors and markings on ICs to identify incorrect components on the circuit board, such as reversed components, misplaced components, etc., to eliminate batch quality abnormalities. OK parts confirmed by IPQC serve as standard samples for AOI inspection, serving as calibration basis for patrol inspection and AOI determination procedures.

Automatic X-ray Inspection

For circuit boards using BGA packages or requiring sealing, the first product after production needs to undergo X-ray inspection.
X-ray images can display the thickness, shape, quality, and density of solder joints.
These specific indicators can fully reflect the welding quality of solder joints, including open circuits, short circuits, hole copper, internal bubbles, insufficient tin, etc., and can be quantitatively analyzed.

Burn-in Testing

The main purpose of burn-in testing is to simulate the daily usage environment of the product through the combined effects of high temperature, low temperature, high and low temperature changes, and electrical power, exposing defects in PCBA, such as poor soldering, component parameter mismatches, and debugging processes. Burn-in testing can eliminate and improve defects in PCBA, stabilizing parameters for defect-free PCBA boards.

Functional Testing

FCT functional testing is suitable for more complex products that require the use of fixtures combined with test instruments and software to simulate actual usage functions or product specifications to determine PCBA quality. This testing method can be conducted in two ways:

1. For scenarios that cannot be simulated, ICT can test the actual specifications of the circuit to determine if the materials and processing processes meet the design requirements.
2. For scenarios that can be simulated, direct power supply through fixtures can establish conduction, then run test steps and set specifications through software to determine if the PCBA meets the requirements.

PCBA Quality Assurance:

Meeting customer PCB production and PCBA manufacturing quality with the highest quality
Sanhuichuang Electronics Co., Ltd. in Shenzhen has implemented the IS09001 quality system.
A comprehensive quality assurance system and various testing equipment help us monitor the entire production process, ensuring its stability and product quality, while introducing advanced instruments and technologies for continuous improvement.

Quality Policy

Quality first, customer supreme, continuous improvement, excellence

Quality

100% visual inspection and electrical testing
Test data
Certification - IS0 9001
XRF test data
Solderability testing
Impedance modeling/testing

PCBA Manufacturing Assembly Quality Assurance:

Strengthening quality control comprehensively, we must achieve our quality policy and goals.
The quality system is established according to IS09001:2015 and undergoes regular internal audits to ensure the effective operation of the quality system.
Full participation in the quality system, continuously learning and training.
Customer satisfaction is our mission.

• IQC: Incoming Quality Control

• First article inspection for each process

• IPQC: In-process Quality Control

• AOI Inspection

• In-circuit testing (ICT)

• Functional testing (FCT)

• Reliability testing

SHC Electronics Limited provides top-notch one-stop PCBA services to the market, including PCB design, DFMA services, PCB manufacturing, component procurement, PCBA production, assembly, and testing services, focusing on multi-variety, small to medium batches, and short delivery time PCBA orders.