For manufacturers specializing in circuit board production, low-volume flying probe testing is an essential step. For larger quantities, opting for fixture testing is typically preferred. This is because the flying probe test requires prepayment for each use, whereas fixture testing involves a one-time payment without additional fees for subsequent tests.
So, what exactly is a flying probe test? The PCB flying probe test is a method used to verify the electrical functionality of PCBs. The flying probe tester operates within a manufacturing environment, utilizing four to eight independently controlled probes. These probes move to the test components on the PCB and are conveyed to the testing machine via a belt or another UUT conveyor system.
The tester’s probes make contact with the test pads and vias of the UUT to test individual components. The probes are connected through a multiplexing system to drivers (such as signal generators and power supplies) and sensors (like digital multimeters and frequency counters). This setup allows for testing various components on the UUT. While testing one component, the probes electrically shield other components on the UUT to prevent interference with the test readings.
1. Import the layer files processed by the engineering department.
2. Check, arrange, and align the layers.
3. Change the two outer layers to front and rear, respectively.
4. Rename the inner layers to ily02, ily03, ily04neg (if negative), rear, and rearmneg.
5. Add three layers and duplicate the solder mask and drilling layers onto these new layers.
6. Rename them to fronmneg, rearmneg, and mehole.
7. Change the D code of fronmneg and rearmneg to 8mil and designate fronmneg as the front layer test point and rearmneg as the back test point.
8. Delete the NPTH holes and determine the via hole locations relative to the traces.
9. Use the fron and mehole layers as references.
10. Rename the fronmneg layer ON for detection.
11. Check if the test points align with the openings of the front layer traces.
12. Move test points within holes greater than 100mil to the pad for testing, especially for precise test points at BGAs.
13. Apply the same procedure for the back layer.
Sure, here is the revised and corrected version of the text:
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Copy the sorted test points from mneg to the front layer, and copy rearmneg to the rear layer. Activate all layers and move to 10.10 mm. Name the output Gerber files as fron, ily02, ily03, ily04neg, ily05neg, rear, fronmneg, rearmneg, meholemet01-02, met02-09, and met09-met10 layers.
Use CAM software to export all Gerber files (fron, ily02, ily03, ily04neg, ily05neg, rear, fronmneg, rearmneg, meholemet01-02, met02-09, met09-met10 layers). Press ‘Net Annotation’ on the artwork to generate the netlist, and press ‘Make Test Programs’ to generate the test document. Enter the non-pore D code, then test the datum point, complete, and save. Place the PCB board on the flying probe testing machine to start testing.
“`
I’ve corrected spelling errors, improved grammar and clarity, and made sure the instructions are more structured and coherent.
Discover a World of Possibilities with WellCircuits Limited
At WellCircuits Limited, we’re here to assist you in exploring new horizons. Our advanced PCB manufacturing, rapid prototyping, and turnkey PCBA solutions simplify the process of transforming your ideas into reality. Count on us to deliver excellence and reliability every step of the way. Join us and discover the power of innovation with WellCircuits Limited by your side.
So, what exactly is a flying probe test? The PCB flying probe test is a method used to verify the electrical functionality of PCBs. The flying probe tester operates within a manufacturing environment, utilizing four to eight independently controlled probes. These probes move to the test components on the PCB and are conveyed to the testing machine via a belt or another UUT conveyor system.
The tester’s probes make contact with the test pads and vias of the UUT to test individual components. The probes are connected through a multiplexing system to drivers (such as signal generators and power supplies) and sensors (like digital multimeters and frequency counters). This setup allows for testing various components on the UUT. While testing one component, the probes electrically shield other components on the UUT to prevent interference with the test readings.
1. Import the layer files processed by the engineering department.
2. Check, arrange, and align the layers.
3. Change the two outer layers to front and rear, respectively.
4. Rename the inner layers to ily02, ily03, ily04neg (if negative), rear, and rearmneg.
5. Add three layers and duplicate the solder mask and drilling layers onto these new layers.
6. Rename them to fronmneg, rearmneg, and mehole.
7. Change the D code of fronmneg and rearmneg to 8mil and designate fronmneg as the front layer test point and rearmneg as the back test point.
8. Delete the NPTH holes and determine the via hole locations relative to the traces.
9. Use the fron and mehole layers as references.
10. Rename the fronmneg layer ON for detection.
11. Check if the test points align with the openings of the front layer traces.
12. Move test points within holes greater than 100mil to the pad for testing, especially for precise test points at BGAs.
13. Apply the same procedure for the back layer.
Sure, here is the revised and corrected version of the text:
“`
Copy the sorted test points from mneg to the front layer, and copy rearmneg to the rear layer. Activate all layers and move to 10.10 mm. Name the output Gerber files as fron, ily02, ily03, ily04neg, ily05neg, rear, fronmneg, rearmneg, meholemet01-02, met02-09, and met09-met10 layers.
Use CAM software to export all Gerber files (fron, ily02, ily03, ily04neg, ily05neg, rear, fronmneg, rearmneg, meholemet01-02, met02-09, met09-met10 layers). Press ‘Net Annotation’ on the artwork to generate the netlist, and press ‘Make Test Programs’ to generate the test document. Enter the non-pore D code, then test the datum point, complete, and save. Place the PCB board on the flying probe testing machine to start testing.
“`
I’ve corrected spelling errors, improved grammar and clarity, and made sure the instructions are more structured and coherent.
Discover a World of Possibilities with WellCircuits Limited
At WellCircuits Limited, we’re here to assist you in exploring new horizons. Our advanced PCB manufacturing, rapid prototyping, and turnkey PCBA solutions simplify the process of transforming your ideas into reality. Count on us to deliver excellence and reliability every step of the way. Join us and discover the power of innovation with WellCircuits Limited by your side.
