Smart Gui - Algorithm Training Material_rev1.pdf - 第130页

Copyright © ViT rox All Rights Reserved . Lead Ringer - T ypes of Ringer T ests 1. Pad T oo Dark • Inspection area: Pad Area • Anchor set to (Lock to Search Area (CAD)" anchor) • Image Plane: max(Angle 1,Angle 3) • …

Lead Ringer - Requirement

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1. Users need to turn off any unwanted test during the setup time. (e.g. joint, bridge, side fillet)

2. Setup of the Ringer algorithm must be done on a known good component.

3. User must ensure the presence/absence inspection algorithm setup correctly.

• Ringer algorithm will not activated if component detected as not present.

4. Must Setup the search area correctly.

• Restricted exactly on the area for the component (Including leads & Pads) as follow:

Lead Ringer - Types of Ringer Tests

1. Pad Too Dark

• Inspection area: Pad Area

• Anchor set to (Lock to Search Area (CAD)" anchor)

• Image Plane: max(Angle 1,Angle 3)

• If the lead is lifted, the end of the pad will look darker in Angle 1, and Angle 3, so we will look at this difference in

intensity to characterize a possible defect

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Lead Ringer - Types of Ringer Tests

2. Pad Solder Shape Differs (Pad anchor)

• Inspection area: Pad Area

• Anchor set to (Lock to Search Area (CAD)" anchor)

• Image Plane: max(Angle 1,Angle 3)

• Compare each lead with its neighbours (per row comparison), with invert check (invert the results if most of the

leads of the row are defects).

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