How to Choose Automated Optical Inspection AOI?

 Robotized optical examination (AOI) is a significant review in the printed circuit board (PCB) produce process. The camera of AOI checks the test PCB for both devastating disappointment (for example missing part) and quality deformities (for example filet size or shape or part slant). It is applied chiefly in 3 phases of the assembling system: uncovered load up assessment, pre-reflow and post-reflow. Howe pick mechanized optical investigation AOI is a significant inquiry for the organization.

There are several AOI Machine on the planet. They have delivered many computerized optical examination items with various models to advertise. Ordinarily, we are don't know which one to pick when we really want a robotized optical assessment.

Here, we will give you some encourages to help pick a reasonable AOI for your PCB line.

1.Resolution in Pick a Mechanized Optical Examination AOI

The goal of AOI for thing 01005 ought to be higher than 12 μm, while for thing 0402 ought to be higher than 25 μm.

We can compute the goal from the pixels of camera and POV. The condition is: Goal =FOV/Pixels of camera. For instance, on the off chance that a camera has 300,000 (480*640) pixels and the FOV is 12*16mm, The best goal of this AOI is 12mm/480=25 μm. Consequently, this AOI can used to actually look at thing past 0402, for example, thing 0805. On the off chance that a camera has 2,000,000 (1200*1600) pixels and the FOV is 12*16mm, The best goal of this AOI is 12mm/1200=10 μm. Consequently, this AOI can used to actually take a look at both thing 0201 and 0402, considerably more thing past.

Things Goal

01005 <=12 μm

0201 <=15 μm

0402 <=25 μm

2. Test PCB Size in Pick a Robotized Optical Review AOI

Each robotized optical investigation have the biggest PCB size it can test. Before you pick AOI, ensure that the size of PCB cushions you will test is more modest than AOI's biggest test size.

3.Online AOI or Disconnected AOI

On account of adequate spending plan, we suggest online AOI.

Reason A: The review cycle is nearly finished in a state of harmony with creation. From natural substances to assessment, completely mechanized process creation process. Diminished creation time.

Reason B: Decreased the halfway connections and diminished the contribution of labor and material assets. It likewise decreases the mistake connect in the center turn.

Reason C: From the part fix to screen the welding quality, from the source to zero in on the improvement of deficient items and item scrap rate, really diminish the quantity of waste.

Notwithstanding, in the event that you have restricted spending plan, disconnected AOI is likewise a preferable decision over really look at PCB by natural eyes.

4. Exceptional elements in Pick a Mechanized Optical Review AOI

If you have any desire to test the PCBA of a multi-associated board, you should pick an AOI identifier with a springboard capability, that is to say, an AOI indicator with a zone choice capability. In the event that you utilize the AOI finder as a quality cycle control, you should pick an AOI identifier with RPC capacity while choosing an AOI locator, or an AOI identifier with constant interaction control.

5.CAD in Pick a Mechanized Optical Examination AOI

Most AOI locators presently have a computer aided design information import capability, however the utilization of this capability isn't extremely productive for PCBA sheets with less gadgets. The more gadgets on PCBA sheets, the more proficient we can get.

6. SPC choice

SPC is process measurements control. Factual control doesn't have ongoing interaction control. RPC significant RPC can perform ongoing factual investigation as well as give early advance notice with the goal that the creation line can keep up with ordinary working circumstances for quite a while.

7. Decision of rehash capacity, bogus positive rate and missed rate

The higher the repeatability, the more steady the exhibition of the AOI locator. The lower the misleading positive rate, and the lower the missed rate.

Taking everything into account, we ought to pick a Computerized Optical Examination (AOI) in light of Goal, Test PCB Size, Online AOI or Disconnected AOI, SPC choice, etc. Picking a reasonable and savvy robotized optical inspection is significant. Pass System Supply Gives a series AOI to your prerequisites.


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