Smart Gui - Algorithm Training Material_rev1.pdf - 第30页

Copyright © ViT rox All Rights Reserved . 30 1. Solder Coverage 2D+3D (um) ● Same as Solder Coverage 2D+3D (%) ● Except the height unit in um. ● The height thres will increased when lifted body happened. ● Below shows 2 …

1. Solder Volume 2D+3D

● Using 2D (Grayscale) and 3D(Height)

● OR Relation between 2D and 3D as pass criteria

● Every single pixels in the joint box will go through inspection

CR Type Algorithm - Joint (Solder Volume 2D+3D)

1. Solder Coverage 2D+3D (um)

● Same as Solder Coverage 2D+3D (%)

● Except the height unit in um.

● The height thres will increased when lifted body happened.

● Below shows 2 examples with height Threshold: 80um at

different conditions:

a. Without Lifted body

b. With Lifted body

CR Type Algorithm - Joint [Solder Coverage 2D+3D (um)]

Pass Criteria for single pixel:

a. Measured Grayscale < Joint Grey Thres

b. Solder Height (%) > Joint Height Thres (%).

The overall pass criteria depends on:

Joint Coverage (%) > Joint Coverage Thres (%)

where,

1. Solder Coverage 2D+3D (%)

● Using 2D (Grayscale) and 3D(Height)

● OR Relation between 2D and 3D as pass criteria for single pixel

● Pass Criteria for single pixel:

a. Measured Grayscale < Joint Grey Thres

b. Solder Height (%) > Joint Height Thres (%).

● The overall pass criteria depends on:

Joint Coverage (%) > Joint Coverage Thres (%)

where,

CR Type Algorithm - Joint [Solder Coverage 2D+3D (%)]