PCB Circuit Board Inspection
PCB Circuit Board Inspection Application
[Background]
Circuit boards are a crucial component of modern electronic devices, and their quality directly impacts the overall quality of the device. Therefore, timely and accurate detection of board defects is crucial.
According to statistics, 55% of electronic equipment failures are caused by temperatures exceeding specified limits. Common causes of temperature rise include low-current short circuits, poor component layout on heating plates, and poor manufacturing processes (such as improper soldering that hinders heat dissipation).
Therefore, whether in circuit board R&D and design, finished product testing, or after-sales maintenance, personnel often rely on temperature measurement to understand the current and voltage conditions of circuit board components for fault detection and thermal field analysis.
[Pain Points]
In traditional temperature measurement scenarios, workers must first use their own experience to determine the approximate fault point, then use equipment to individually check potential problem circuits. Not only is this a high barrier to entry, but multiple single-point temperature measurements are also required, making it difficult to locate the problem point and prone to overlooking potential risks.
Especially with the trend toward greater multifunctionality and miniaturization of electronic devices, the industry is placing higher demands on circuit board inspection:
- Circuit board conductor spacing and component size are shrinking, overall dimensions are becoming smaller and denser, and the number of measurements required per chip is increasing, requiring higher accuracy.
- Master boards have a single layout, many repetitive features, and require a large number of measurements for the same product, requiring high measurement efficiency.
- Circuit boards are small, thin, and flexible, easily deformed, placing stringent demands on inspection methods.
To better address these challenges, more and more circuit board inspectors are turning to thermal imagers for circuit board temperature measurement.
[Applications]
Thermal imagers convert detected infrared thermal radiation into grayscale values, visually displaying all temperature points on the circuit board in the form of a heat map. In other words, thermal imagers can directly visualize the temperature distribution of components on the circuit board.
