pcba

Functional Circuit Test (FCT) is a production-stage functional test for PCB/PCBA. It verifies the functionality and integrity of a board by powering up and stimulating the Device Under Test (DUT) and monitoring its responses. By applying electrical stimuli and measuring outputs, it confirms whether the circuit operates according to the design and assesses functional stability and safety.

What is FCT in PCB Manufacturing?

Introduction If you work in the printed circuit board (PCB) industry or simply use electronic devices, you know that post-production testing is crucial before any device reaches the market. Functional Circuit Test (FCT) is a key step in the PCB Assembly (PCBA) quality control process and a fundamental skill that Read more

What is FR4 Substrate Material?

Most electrical engineers and individuals working with printed circuit boards are familiar with FR4 material. FR4 is the cornerstone of most rigid circuit boards. However, many are unclear about what FR4 actually is, let alone why it has become the most popular PCB substrate material. What is FR-4? FR-4 is Read more

From Definition to Delivery: Analysis of the Full Process of low volume pcb assembly

In the electronics manufacturing industry, low volume pcb assembly has become a widely adopted production method for R&D teams, startups, and established OEM. It not only supports new product development and design verification, but also meets the needs of high variety, low volume market testing. Compared to traditional mass production, low volume assembly emphasizes flexibility, Read more

PCB Annular Ring

What is a PCB Annular Ring An annular ring is a circular metal pad on a PCB that resembles a doughnut. The inner hole is used to insert a wire or component pin. After soldering, the annular ring connects to the component pin inserted into the inner hole, thus achieving Read more

Buried Vias

Blind and Buried Vias in PCBs

Blind and Buried Vias in PCBs In modern electronic design, as products move towards thinner, smaller, and higher-performance designs, circuit board structures are becoming increasingly complex. Particularly in multilayer boards, the use of blind and buried vias has become a key tool for improving wiring efficiency and circuit performance.So, what Read more

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