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Principle and Manufacturing Method of PCBA Test Jigs
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PCBA test fixtures (also known as “test jigs”) are extensively used throughout the entire PCBA manufacturing process, and they serve as the primary tools for facilitating PCB testing.
PCBA test fixtures (also known as “test jigs”) are extensively used throughout the entire PCBA manufacturing process. A PCBA test fixture is the primary tool used to assist in performing PCB testing. Manufacturing facilities mainly use these fixtures to test PCBA boards after SMT mounting and DIP component insertion, thereby determining whether the finished product meets the required specifications.
Principle and Manufacturing Method of PCBA Test Jigs
The principle of a PCBA test fixture is simple: it uses metal probes to connect to the pads or test points on the PCB. With the PCB powered on, the fixture measures typical values such as voltage and current in the test circuit, allowing you to determine whether the tested circuit is functioning properly by observing these readings with an ammeter, voltmeter, or dedicated testing equipment.
PCBA test fixture fabrication is always custom-made, determined by the dimensions of the PCB to be tested, the locations of the test points, and the specific parameters that need to be measured. The fabrication typically involves acrylic, bakelite, plastic, metal probes, a display screen, wires, and a simple PCB circuit board. 2) What documentation and files are required for PCBA test fixture fabrication?
In a PCBA factory, after the soldering process of PCBA production is completed, a custom-made PCBA test fixture must be ordered specifically for this product to test the functional parameters of the PCBA board. When manufacturing the PCBA test fixture, the PCBA factory needs to provide the corresponding documentation files to the fixture manufacturer in order to ensure the accuracy of the fixture.
The PCBA factory needs to provide the Gerber files for the PCBA boards, material specifications, and sample PCBA boards as well as documentation outlining the requirements for test fixtures. If no sample board is available, the factory can still proceed with production by providing only the Gerber files. The test fixture manufacturer can use the circuitry, solder mask, test point, and other data provided in the Gerber files to fabricate the test fixtures. However, if the files are incomplete, the resulting test fixtures may not meet your desired performance standards.
The PCBA test fixture boasts high testing accuracy, is easy to operate, supports batch testing, and can effectively reduce production costs.
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A Comparative Analysis of Probe Jigs and BGA Test Jigs In the field of electronic manufacturing, the selection of jigs is crucial for both production efficiency and test quality. Among these, “probe jigs” and “BGA test jigs” are two indispensable tools in modern electronic testing. While each has its own unique features and advantages, they also share certain similarities in some aspects. Today, we’ll take a closer look at a comparative analysis of these two types of jigs to help you better understand their respective characteristics. What is a probe jig? As the name suggests, a probe jig is a device used for circuit board testing. It establishes electrical connections and performs tests by directly contacting solder joints on the circuit board via probes. Such jigs are commonly employed in component functional testing, fault diagnosis, and quality control on production lines. The Advantages of Probe Jigs The primary advantage of probe jigs lies in their flexibility and adaptability. For different types of circuit boards, probe jigs can be adapted to various testing requirements by simply replacing probes or adjusting the layout. Moreover, probe jigs have relatively low costs, especially when used in small-batch production, making them an effective way to reduce testing expenses. What is a BGA Test Jig? A BGA (Ball Grid Array) test jig, on the other hand, is specifically designed for BG
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Chongqing Gardray Technology Co., Ltd. is a company specializing in the design and manufacture of various PCBA board test fixtures, as well as the R&D and production of FCT testing equipment.
Address: Building 15B, Qingfeng International Enterprise Port, Liandong U Valley, Shapingba District, Chongqing City
