Which kind of flying needle test is suitable for PCB factory?

Flying needle test is a method to check the electrical function of PCB, and it is an important part of PCB process. Flying needle test is very popular in PCB manufacturing because it does not require fixtures, can reduce production costs, and the operation is very simple and fast. It can be said that almost every PCB factory is using flying needle test.

A series of flying needle testers with high test density, flexible test speed and low false alarm rate, developed and manufactured by Nanjing Xiechen, are widely used in PCB industry and are well recognized and supported by PCB manufacturers.

For many years in the field of PCB testing, Xiechen has made numerous explorations and attempts in the field of flying needle testing, and has also achieved a lot of technical results. In this article, we will sort out the technical achievements of flying needle test in Nanjing Xiechen, present and introduce the accumulated technological achievements of Xiechen over the years, so that more PCB manufacturers can understand the advantages and potential of Xiechen flying needle test, and find the flying needle test equipment and technology suitable for their PCB production.

Intelligent Electrical Measuring Equipment V10

V10 is a recently launched heavy product, which can create a highly competitive intelligent electrical measurement workshop for PCB factories.

Advantages:

1. PCB under 30 square meters can realize the full flying needle test efficiently and reliably.

2. Automated data output without data processing personnel;

3. Collaborate ECS electric measurement workshop management system to realize real-time status, time crop mobility, performance crop mobility and quality crop mobility management, and produce traceable reports: job production reports, machine production reports, material number production reports.

4. AGV can be docked to realize unattended handling and automatic loading and unloading.

V8 Series of Ultra-high Speed Flying Needle Tester

V8 series flying needle tester can be compatible with all types of PCB. It uses well-known screw rod and guide rail to ensure the test accuracy to the greatest extent. At the same time, the mechanical speed can be increased by more than 30% and the ultra-high test speed can be achieved.

Advantages:

1. In order to save raw materials and improve production efficiency, more customers choose 43*49 inch bulk material. The testing area of PNL will reach 21.5*24.5 inch (546*620 mm), while the maximum testing size of V8 series will reach 710 mm*610 mm.

2. Pre-forming test (large PNL test) has been recognized by more and more companies. However, due to the large area of the whole board, slight shaking will inevitably occur during the test process. V8 series flying needle tester has added side fixture, which can effectively ensure the stability of the side.

3. A clamp is added to the upper plate position to operate the panel. The upper and lower plates can quickly control the opening and closing of the clamp as long as they are pressed lightly. Here, not only make the upper and lower boards more convenient, but also greatly reduce the movement of employees'limbs and reduce the intensity of their work.

FPC/IC Carrier Plate Tool X500 Series

X500 series is FPC, IC board detection sharp instrument.

Advantages:

1. The test accuracy of X400H can reach 20 micron, which can meet the current domestic high-precision FPC and IC board test accuracy requirements.

2. Using a new CCD module, the resolution of the alignment image is increased three times, which ensures the alignment accuracy, and at the same time, the condition of the designed circuit can be observed more clearly.

3. Strong vacuum suction table greatly reduces the influence of plate warping on test.

Ultra-large size flying needle test

Large-size backplane is a kind of high-end PCB product which has developed rapidly in recent years. It generally has the characteristics of large size and many layers. Because of the large size, the test size of the general flying needle tester can not meet the requirements at all. The flying needle tester X900 & X1200, launched by Xiechen, is equipped with super-large test bench, which can effectively test this kind of PCB.

Advantages:

1. Super-large test table with maximum test size up to 1200X700mm.

2. The preferred testing equipment for communication backplane is to reduce the risk of missing detection in network partitioning test.

V6 series

V6 series flying needle tester can be compatible with any type of PCB and complete the test at high speed.

Advantages:

The average speed of O/S test increased by more than 30%.

The average test efficiency of low resistance and pure resistance increases by more than 50%.

Technical Advantage of Xiechen Flying Needle

1. Each test needle has a closed-loop pressure control system, which ensures that the test of different plate thickness can guarantee very good needle mark control without any debugging. At the same time, with different test needles, needle marks can be controlled for any type of test.

2. Four groups of test needles, four CCDs, are fixed on the same module, which ensures the consistency of the position between the CCD and the test needle. At the same time, four groups of CCDs can automatically compensate the rotation of the splint to ensure more accurate alignment.

3. Four groups of CCDs can set CCD real-time viewing when testing problems, which is convenient for viewing the actual situation of PAD on the test board, and can move the test needle in real time to ensure the accuracy of testing. Identify problems and deal with them in time to ensure the efficiency of output.

4. The software has V-CUT test point test function, which can test any required V-CUT test point.

5. In the actual production of PCB, because of the overlapping errors of each process, the PCB will inevitably have a deflection of expansion and contraction board. When the electric measuring process passes through the special or general testing machine, there will be a certain percentage of boards with false OPEN points (these boards can hardly be measured again). The data of fake OPEN point plate measured by the customer's general purpose machine are linked to the flying needle machine with the easy-to-connect software to retest only for the fake OPEN point, and the tail plate is processed quickly.

6. Four-terminal test can detect the voids and thin copper in PCB, the bad conductivity of HDI plate caused by residual glue after laser drilling, and so on. It is accurate to mΩ.

7. Edge Running Function: In order to prevent the needle from breaking directly into the hole, the function of automatically moving the measuring point to the hole ring can prevent the abnormal occurrence of the broken needle and ensure the output efficiency.

8. To match different surface and function tests, four common test needles are used: ordinary needle for normal test, dense plate needle, low resistance four-thread needle, and micro-needle for plate with very strict requirements for needle printing. There are many choices to ensure the test quality according to different requirements of the board.

9. Strong data compatibility, compatible with a variety of formats, convenient for customers to work uniformly in the factory, save the cost of purchasing new software.