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III- 12 Programming Manual Part III Inspection Algorithm 1.5 ChipMissing3 1.5.1 Inspection Ov er view ChipMissing3 is the algorithm to inspect solder at either end of the chip component with T opLight and SideLight used.…

III-11

Programming Manual

Part III Inspection Algorithm

1.4.3 Setting Procedure

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

Step2: Make sure of the OK area’s average color. Adjust the window size smaller and make sure

of the x marking distribution in the graph in the lower right side of the dialog. The x marking

position is changed according to the window position.

Step3: Make sure of the NG area’s average color. Adjust the window size smaller and make sure

of the x marking distribution in the graph in the lower right side of the dialog. x marking

position is changed according to the window position.

Step4: Set an inspection window on the component.

Step5: Set the borderline between the position of the x marking if the window is in OK area and the

position of the x marking if the window is in NG area.

Step6: 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.

Step7: Enter the appropriate vector into the Shift ﬁ eld. Any value from V1 to V8 is available.

Select the vector according to the Memorize to ﬁ eld of the Adjust window.

Step8: Press Inspect. Make sure that the inspection is completed properly.

NOTE

Sample value is the distance of x marking to blue borderline.

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㪈㪇㪇

㪈㪏㪇

㪯

㪰

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㪈㪇㪇

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㪯

㪰

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Figure 1-11 Setting Procedure of ColorXY

III-12

Programming Manual

Part III Inspection Algorithm

1.5 ChipMissing3

1.5.1 Inspection Overview

ChipMissing3 is the algorithm to inspect solder at either end of the chip component with TopLight and

SideLight used.

The brightness level of a solder is lower if a solder ﬁ llet is formed. The brightness level of a solder is

higher if a solder ﬁ llet is not formed, or a component is missing (refer to Figure 1-13).

ChipMissing3 is suitable for a chip missing inspection or solder inspection.

1.5.2 Parameter Setting

Figure 1-12 ChipMissing3

Parameter Description

Lighting Select SideLight.

Algorithm Select ChipMissing3.

SideLight Upper Level Upper limit of brightness level in OK range (SideLight).

TopLight Upper Level Upper limit of brightness level in OK range (TopLight).

Search Range[0-30] Enter 0.

Shift[V1-V8]

Enter the appropriate vector. Any value from V1 to V8 is available.

Select the vector according to the Memorize to ﬁ eld of the Adjust window.

PAD Length Default is 30. Enter the bigger value to enlarge the inspection area.

Memorize to -

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

Sample Refer to Part III 1.5.4 Calculation of Sample Value.

Table 1-5 Parameter of ChipMissing3

III-13

Programming Manual

Part III Inspection Algorithm

1.5.3 Setting Procedure

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

Step2: Enter the appropriate vector into the Shift ﬁ eld by selecting from V1 to V8 according to the

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

Step3: Check if the sample value is in OK range. If it is out of OK range, change values in SideLight

Upper Level or TopLight Upper Level.

NOTE

If the inspection area is too small, change values in PAD Length to larger.

Step4: Press Inspect. Make sure that the inspection is completed properly.

(a) Normal (b) Missing (c) No Solder

Low Brightness High Brightness High Brightness

Figure 1-13 Missing / Solder inspection by ChipMissing3

1.5.4 Calculation of Sample Value

Set the OK brightness range of SideLight and TopLight by adjusting SideLight Upper Level /

TopLight Upper Level values. The percentages of the area that the result is OK in solder inspection

window at either end of the chip component with TopLight and SideLight are calculated.

The lower value is shown as the sample value.

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㪐㪇㩼㪏㪇㩼

Calculate the Rate of the Overlapping Parts

TopLightSideLight

TopLight

0䌾80

SideLight

0䌾150

Sample Value

OK Range

Range

Figure 1-14 Calculation of Sample Value