Product development workflow
We will introduce Unifive's product development flow. We have received high evaluations for our design, prototyping, mass production, quality inspection, and reliable after-sales service. As a manufacturer of AC/DC power adapters — desktop & wall-mount — and switching power supplies with flexible support, Unifive ships approximately 15,000 units of around 1,500 sample models annually.

1. Market Research & New Model Introduction
Our company gathers trend information on power supplies required by customers mainly through daily sales activities and hearings. We also obtain roadmap information regarding updates and newly established national safety standards, environmental regulations, and energy-saving requirements from relevant certification bodies.
We consider customer trends and the starting times of new regulations in each country, and aim to develop and launch new products at the best timing to meet customer needs.
2. Design
Once our sales representatives confirm the necessary details—such as information about the equipment using the power supply, usage methods, sales destinations, necessary safety certifications, energy regulations, and desired specifications—we select and recommend the most suitable model from our lineup of over 1,500 types.
If further modifications are needed in accordance with the customer's internal standards, we can adjust the design, performance, and materials to meet those needs. We also support acquiring safety certifications for the power supply unit as requested. Especially in terms of electrical performance, we provide demonstration measurement data after tuning to the customer's desired performance. For regulations such as noise requirements of each country, we provide data obtained at certified labs.
3. Design Inspection & Mass Production Prototype
For newly developed products, after technical prototype completion, our Quality Control Department conducts design inspections and validation experiments to ensure satisfactory performance.
Customers are usually provided with a few initial samples, followed by samples in quantities that match the prototype stage.
4. Mass Production
At the completion of technical and mass production prototyping stages, prototype evaluation meetings are conducted. Any issues raised during these meetings are addressed in the mass production stage to prevent recurring defects and yield deterioration.
5. Quality Inspection
We conduct incoming quality control (IQC), in-process quality control (IPQC), and outgoing quality control (OQC).
Incoming Quality Control (IQC)
Excluding some packaging components, all parts undergo sampling-based acceptance testing and hazardous substance inspection.
In-Process Quality Control (IPQC)
We perform inspections on all production lots to ensure: "Is production following specifications?" "Is ultrasonic welding properly executed?" "Is work being done in compliance with the work instructions?"
Outgoing Quality Control (OQC)
Sampling inspections are performed on all production lots based on electrical characteristics defined by the required safety standards and specifications. The following criteria are applied to acceptance and shipping inspections:
- ANSI/ASQ standard Z1.4 Level-II
- Critical defects: AQL 0.1% (0/1 judgment)
- Major defects: AQL 0.1% (0/1 judgment)
- Minor defects: AQL 0.65% (judgment standards for Ac/Re are based on the sampling criteria table)
6. After-Sales Service
When a defect occurs, we analyze the defective products. We identify the cause of occurrence and leakage, then promptly implement preventive measures to avoid reoccurrence of similar problems.