TR7500E_Manual_en_v28.pdf - 第220页

C h a p t e r 3 A O I A T P G F u n c t i o n i n s t r u c t i on T R 7500 U S E R M A N U AL 2 13 r e s o l u t i o n. l P a ss l e v e l s e tti n g n B r i d g e T h r e s h o l d – T h e t h r e s h o l d t o j u d …

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11.2.5. Pin
l To check shift, over (low) solder or open of components. By setting threshold
and High/Low ratio to check NG or not. When user trains pin window, software
will memorize the bright zone as 100.
l Pass level setting
n B/W Threshold – The threshold to judge the black and white.
n High Ratio – Set the tolerance ratio that the box can’t exceed.
n Low Ratio – Set the tolerance ratio that the box can’t be smaller than.
11.2.6. Solder
l To check the bridge of IC leads. When user trains the solder, threshold will be
automated setting according to surrounding area. Solder will check outward from
window. If 7(10) pixels’ exceeds the threshold, it will show fail in standard (high)
235%(OS:135)
40%(LS:-60) 100%
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resolution.
l Pass level setting
n Bridge Threshold – The threshold to judge the black and white.
n Bridge Range Ratio – Set the percentage of pixels to inspect
n Bridge Type – Set the direction to inspect.
11.2.7. Polarity Pair
l You should move a pair of windows to different position with variation of gray
level. System will show polarity fail if the gray level of two windows is reverse.
11.2.8. Align
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l Align window is used projection in X-Y direction (Method3) to relocate IC or
Rnet (Cnet) when PCB has warp. And align only relocate one component.
l Pass level setting
11.2.9. Warp
l We premise that warp in one FOV is same. Each component has relationship
with warp model. When inspection, wrap will calculate the shift distance in X-Y
direction. Each component will add the shift and start to test the component is
fail or not.You can select method 1 or method 2 to do pattern matching. FOV
proposing being inspected from the camera with angle must have [Warp].
l You can only add [Warp] in train dialog.
11.2.10. ROI
l ROI is an inspection box to inspect the scrape of surface.