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Wells quality control

Wells has been taking quality and service as the primary goal of the company’s development for 18 years; we are committed to providing customers with zero-defect products at a lower price. We strictly implement process control and supervision of PCBA manufacturing process throughout the manufacturing process to ensure that our products meet the highest quality standards.
The vision of providing customers with high-quality products and first-class services has always driven us to make continuous progress. Customer satisfaction is our top priority. We listen, we cooperate, and we provide supply chain management that you can always trust. The company has passed ISO9001:2015, ISO14001, ISO13485, ROHS, BSCI certification to ensure that our production and products meet international standards.

Supplier Qualification

Wells Technology has always been committed to quality and customer satisfaction. We understand that no one wants to change suppliers frequently. We also know the importance of long-term service to customers. We have established long-term cooperative relationships with more than 100 major customers, with annual orders exceeding US$26 million. In order to provide customers with the necessary trust and assurance of product quality, we follow international practices and adopt authoritative standards. Our certifications include:

ISO/TS 16949: This standard was developed by the International Automotive Task Force (IATF) to establish and implement a quality management system for the automotive industry supply chain. It is a supplement and extension of the ISO9001 standard and is designed to help automotive industry organizations achieve best practices in quality management, continuous improvement and supply chain management.

ISO 13485: This international standard applies to the quality management system of the medical device industry. It is designed to help medical device industry organizations ensure that their products meet customer and regulatory requirements.

ISO9001: The International Organization for Standardization standard provides a basis for the development of a quality management system (QMS) to help companies ensure that their products and services meet customer needs and continuously improve their business processes.

ISO 14001: This standard is used for the establishment and implementation of an environmental management system (EMS). It helps companies reduce adverse impacts on the environment while achieving economic benefits and fulfilling social responsibilities.

Quality Control and Standards

Based on 18 years of production experience, Wells Technology has summarized a set of strict internal control standards and MES systems, and adopts data management at every stage and every workstation in the manufacturing process; let the executive employees know the customer’s requirements, production standards, and inspection specifications; let managers see real-time production records and production progress;

All our internal products are implemented according to industrial-grade quality standards; these quality control standards are stored in the data terminal at each workstation; the stored contents include program files, quality standard requirements, control processes, quality management manuals, SOP files, material inspection specifications, and job descriptions.

Our customer service team provides services to customers 24 hours a day and actively communicates with customers about their product manufacturing progress and any problems encountered during the production process. We also organize technical and design discussions between technical and engineering personnel from both sides. Ensure that our products meet customer requirements from supplier selection to production inspection to factory inspection and customer service.

In addition, our engineering team reviews project issues, solves difficulties in the project, and provides technical support to customers. After production, we summarize with customers to improve the space for product optimization; our commitment to internal control standards and engineer customer service has helped us gain a good reputation and a very trusting relationship with customers.

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Quality Control

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Control station Inspection Items
Incoming materials PCB: thickness, through-hole, pad, silkscreen, warpage, circuit, solder mask, etc.;
Components: packaging, model, silkscreen, quantity, measured value, appearance, solder leads, temperature resistance, direction, etc.;
Structural parts: appearance, size, material, weight
Storage Sensitive components: stored in a box with relative humidity below 5%;
RoHS compliant components: marked with RoHS or non-RoHS labels after IQC;
Solder paste: sealed and stored in a refrigerator at 2–10°C, with expiration date indicated;
Material identification card: attached to each batch
Solder paste Brand: renowned brands such as Senju, Alpha, Indium;
Thawing: 3–4 hours to reach ambient temperature (25±2°C);
Mixing: stirred clockwise for 1–3 minutes using an automatic solder paste mixer;
Stencil: laser-cut stencils used, with special attention to high-precision pads such as QFN and BGA;
Inspection: solder paste thickness, area, and volume distribution controlled with 3D SPI
  SMT soldering Reflow oven: 10-zone reflow oven;
Component support: precision placement for IC, BGA, chips, PLCC, etc.;
Equipment: 4 automatic high-speed SMT lines with Fuji NXT 3rd-generation modular placement machines;
AOI: automatic optical inspection to compare actual solder joints with qualified images in the database;
X-ray: X-ray inspection equipment available for BGA solder joint quality;
IPQC first piece inspection, and the rest of the production will start after the test
DIP soldering Fixture inspection: pallets and fixtures checked before use;
Board inspection: visual inspection of boards before wave soldering;
Wave soldering: temperature profile monitored;
Solder joint inspection: post-soldering inspection of through-hole components;
IPQC: first-piece inspection; mass production proceeds after approval
Assembly inspection Communication: maintain real-time communication with customers;
translate requirements into engineering instructions;
Training: train testers to perform all steps independently;
Validation: share test procedures and results with customers via video for confirmation and archiving;
Production: after customer approval, proceed to full production;Continuous improvement: record failure test results, provide solutions, and use them as input for future design improvements
Packaging Packaging materials: anti-static bags, foam padding, blister trays, custom boxes, etc.;
Protection: prevent electrostatic discharge and mechanical damage during transportation
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Wells is your trusted partner & one-stop shop for PCB fabrication, components sourcing, PCB assembly and electronic manufacturing. With more than 18 years of experience, we have been supplying high-quality PCBs with competitive pricing for 1000+ customers worldwide. Our company is ISO9001:2015 Certified & UL Listed, and all our products are 100% E-tested and inspected by AOI & X-RAY to meet the highest industry standards. So please get an instant quote from our sales team now, and we will take care of the rest.

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Copyright © 2008-2026 Wells Electronics Co., Ltd. All Rights Reserved.
4th Floor, Building 12, No.3 Nangang Industrial Park, Tangtou, Bao'an District, Shenzhen, Guangdong, China
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