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V- 3 Programming Manual Part V Other Function 1.2 Mak e KPK Data Step1: Open KPK setting dialog. Select Edit > KPK Windows Auto Deployment from the menu-bar to add KPK in existing inspection data. Figure 1-3 KPK Windo…

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Programming Manual

Part V Other Function

1 KPK

KPK (Key-colors Peak Keeping method) is a new inspection solution, which allows easier programming for

missing inspection in terms of operation and speed. KPK is compatible with other functions of inspection

software. By the combination use with existing inspection algorithm, missing inspection can be enhanced

further. KPK data can be added to the existing inspection data. KPK can be used in fare-paying software.

CAUTION

If inspection data is made by auto deployment and library assignment after making KPK data, KPK

library will be overwritten.

1.1 Inspection Overview

1.1.1 OKNGColors Lighting

OKNGColors lighting separates between OK color as white and NG color as black by registering OK

and NG colors in advance. If the color of the detected area is closer to the one registered as OK color,

the area would become brighter. If the color of the detected area is closer to the one registered as

NG color, the area would become darker. To set component colors as OK color and PCB colors as

NG color, component color would become white and PCB color would become black.

Body Electrode

OK Colors

NG Colors

(a) Side

(b) OKNGColors

PCB

Figure 1-1 OKNGColors Lighting

1.1.2 Inspection Method

KPK uses Black/White algorithm which calculates the percentage of the area where the pixel is

brighter. If the percentage of the area where the pixel is brighter, the result will be missing.

Black/White

OK Component

Missing Component

100%

Calculates the percentage of the area

Image of OKNGColors

10%

where the pixel is brighter

Figure 1-2 Inspection Method

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Programming Manual

Part V Other Function

1.2 Make KPK Data

Step1: Open KPK setting dialog.

Select Edit > KPK Windows Auto Deployment from the menu-bar to add KPK in existing

inspection data.

Figure 1-3 KPK Windows Auto Deployment

Refer to Part II 1.1 Make Inspection Data on AOI Machine to make new inspection data and

press Start KPK Window Deployment in Step43.

Figure 1-4 KPK Deployment

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Programming Manual

Part V Other Function

Step2: The dialog shown in Figure 1-5 appears. Register the PCB color as NG color.

Procedures depend on the presence or absence of bare PCB.

Figure 1-5 Specify PCB Color

1.2.1 With Bare PCB

Extracts a PCB color from a bare PCB and register it as an NG color.

NOTE

In the case of using KPK for post-reﬂ ow inspection, it is recommended to use a bare

PCB after reﬂ ow-oven. That is able to reduce color variation caused by ﬂ ux and to

extract PCB color properly.

Step1: Press Switch Images.

Figure 1-6 Switch Images 1