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III- 9 Programming Manual Part III Inspection Algorithm 1.3.3 Setting Procedur e Step1: Select SideLignt from the Lighting drop-down list. Step2: The Adjust window can be scaled to any size by adjusting the yellow square…

III-8

Programming Manual

Part III Inspection Algorithm

1.3 ColorLTrack / ColorWTrack

1.3.1 Inspection Overview

ColorLTrack / ColorWTrack is the algorithm to correct misalignments between CAD data and actual

component positions. Actual component positions are automatically searched based on the color

differences between components and a PCB. ColorLTrack / ColorWTrack corrects misalignments (X

axis, Y axis). Extract component colors from two places in consideration of color variability (Extracted

colors should be differ from a PCB color) and register them as a criterial color.

ColorLTrack should be used to correct longitudinal direction misalignments of inspection windows.

ColorWTrack should be used to correct lateral direction misalignments of inspection windows.

ColorLTrack / ColorWTrack is suitable if a component color clearly differs from a PCB color.

1.3.2 Parameter Setting

Figure 1-9 ColorLTrack/ColorWTrack

Parameter Description

Lighting Select SideLight.

Algorithm

Select ColorLTrack or ColorWTrack

(refer to 1.2.4 The difference between LTracking and WTracking).

Red, Green, Blue[0-255]

The value is automatically entered when a component color is extracted.

Shift[V1-V8] Enter 0.

CHA-Width[0-255]

Default is 30. Enter the bigger value to enlarge the color OK range.

Memorize to

Enter V1 to register amount of misalignments.

Enter V1 in Shift to reﬂ ect amount of misalignments to other algorithms.

Search Range

Default is 10. Enter the bigger value to enlarge the search area.

However, if the Search Range is too large, the inspection time might become

longer or a PCB pattern might be mis-recognized as a component.

Tracking Side

Default is 2. Misalignments are corrected in both X- and Y-axis directions.

If the value is 0 or 1, misalignments in one direction are corrected.

Upper, Lower Set upper and lower limit of the OK range.

Sample

Shows amount of misalignments.

The graph in the lower

right side of the dialog

Component RGB values are displayed.

By left-clicking with pressing , information is displayed on the left of the graph.

By left-clicking with pressing

information is displayed on the right of the graph.

Table 1-3 Parameter of ColorLTrack / ColorWTrack

III-9

Programming Manual

Part III Inspection Algorithm

1.3.3 Setting Procedure

Step1: Select SideLignt from the Lighting drop-down list.

Step2: The Adjust window can be scaled to any size by adjusting the yellow square points on the corners

of the colored part of the chip. The window position should be adjusted in the Area window.

CAUTION

Do not move the Adjust window position by mouse-dragging.

Step3: Select two places and extract the colors.

Component RGB values are displayed in the graph.

By left-clicking with pressing , it is displayed on the left of the graph.

By left-clicking with pressing , it is displayed on the right of the graph.

NOTE

In order to expand the OK range, select one from dark colors and the other from

light colors.

Step4: Enter V1 in the Memorize to ﬁ eld.

Step5: Press Inspect.

If the search is successful, the pink window surrounding the component’s body appears.

NOTE

A value in Sample shows amount of misalignments. If the sample value is out of the

OK range, adjust the Area window position and re-check the Sample value.

III-10

Programming Manual

Part III Inspection Algorithm

1.4 ColorXY

1.4.1 Inspection Overview

ColorXY is the algorithm to inspect the color of the component.

ColorXY calculates average color of the inspection window and display red x marking at the graph in

the lower right side of the dialog.

The average color of the area which is to be OK and the average color of the area which is NG are

displayed in the graph. Compare these two average colors and set the borderline between them.

ColorXY is suitable for missing, misalignment, and polarity inspection of the chip component by using

colors.

1.4.2 Parameter Setting

Figure 1-10 ColorXY

Parameter Description

Lighting Select SideLight.

Algorithm Select ColorXY.

X1, Y1, X2, Y2 This ﬁ eld is automatically ﬁ lled when the blue borderline is moved.

Shift[V1-V8]

Enter an appropriate vector by selecting from V1 to V8 according to the vector

used in the Memorize to ﬁ eld in the Adjust window.

Memorize to -

Upper, Lower

If the average color of the area which is to be OK is in the left side of the blue

borderline, enter 255 in the Upper ﬁ eld and 0 in the Lower ﬁ eld. If the average

color of the area which is to be OK color is in the right side of the blue borderline,

enter 0 in the Upper ﬁ eld and -255 in the Lower ﬁ eld.

Sample Shows distance of x marking to blue borderline.

The graph in the lower

right side of the dialog

Average color in the window is displayed as red x marking. Green x marking is the

average color of other components which are sharing the same library. The

borderline can be moved by adjusting the yellow square points at the either end of

the blue borderline.

Table 1-4 Parameter of ColorXY