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III- 29 Programming Manual Part III Inspection Algorithm 1.11.3 Setting Procedur e Step1: Select TopLignt from the Lighting drop-down list. Step2: Adjust the Black/White window position to surround the solder ﬁ llet. Ste…

III-28

Programming Manual

Part III Inspection Algorithm

1.11 Black/White

1.11.1 Inspection Overview

Black/White is the algorithm to inspect the percentage of the speciﬁ ed brightness level in the

inspection window.

If the percentage of the speciﬁ ed level exceeds a certain value, the result will be OK.

Black/White is suitable for solder inspection of chip components.

1.11.2 Parameter Setting

Figure 1-32 Black/White

Parameter Description

Lighting

Select TopLight to inspect solder paste.

Algorithm Select Black/White.

Upper Level[0-255],

Lower Level[0-255]

Calculates a value intermediate between OK sample value and NG sample

value. If OK sample value is smaller than NG sample value, enter intermediate

value in Upper Level ﬁ eld and 0 in Lower Level ﬁ eld. If NG sample value is

smaller than OK sample value, enter 255 in Upper Level ﬁ eld and intermediate

value in Lower Level ﬁ eld.

Option[0-16]

Enter 0.

Shift[V1-V8]

Set the OK range. The maximum value is 100 in Upper ﬁ eld and minimum value

is 0 in Lower ﬁ eld.

Memorize to -

Upper, Lower

Set OK range. The maximum value of Upper is 100 and minimum value of Lower is 0.

Sample

Shows the percentage of the speciﬁ ed brightness level in the inspection window.

The graph in the lower

right side of the dialog

The Histogram of Luminance bar graph shows the number of pixels of every

bright level. Green area is the speciﬁ ed area by Upper Level and Lower Level.

The sample Value shows upper limit and lower limit.

Table 1-12 Parameter of Black/White

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Programming Manual

Part III Inspection Algorithm

1.11.3 Setting Procedure

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

Step2: Adjust the Black/White window position to surround the solder ﬁ llet.

Step3: Enter values in the Upper ﬁ eld and the Lower ﬁ eld.

NOTE

100 is for the Upper ﬁ eld and 60 is for the Lower ﬁ eld as a rough guide.

Step4: Make sure that the sample value is in the OK range. If it is out of the OK range, adjust values

in Upper Level and Lower Level.

CAUTION

Inspection windows are created at either end of the chip component after auto

deployment of chip component.

NOTE

The percentage of the speciﬁ ed brightness level in the inspection window is

displayed as a sample value.

NOTE

Press the black-white button on the right side of Sample (refer to the red circle in

Figure 1-32). The OK area will be colored in gray.

Figure 1-33 OK Range

Step5: Enter the appropriate vector into the Shift ﬁ eld by selecting from V1 to V8 according to the

vector used in Memorize to in the Adjust window.

Step6: Press Inspect. Make sure that the inspection is completed properly.

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Programming Manual

Part III Inspection Algorithm

1.11.4 Algorithm BrightLevel

BrightLevel algorithm is available for components which brightness level are quite-variable.

Black/White algorithm calculates the percentage of the speciﬁ ed brightness level in the inspection window.

BrightLevel algorithm inspects the brightness level which accounts for the speciﬁ ed percentage.

Figure 1-34 BrightLevel

Parameter Description

Lighting

Select an appropriate lighting according to the algorithm which the bright level is used.

(e.g., Select TopLight if the threshold of BrightLevel is used with Black/White for

solder inspection.)

Algorithm Select BrightLevel.

Bright[%],

Dark[%]

Enter an arbitrarily value in Bright and 0 in Dark to specify percentage of a brighter

area in an inspection window. Enter 0 in Bright and an arbitrarily value in Dark to

specify percentage of a darker area in an inspection window.

(e.g., If using Black/White in an inspection window and percentage of a bright area is

70% and percentage of a dark area is 30%, enter 70 to Bright and 0 to Dark, or enter

0 to Bright and 30 to Dark.)

Option Enter 0.

Shift[V1-V8]

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

in the Memorize to ﬁ eld in the Adjust window. Enter 0 in Shift if the threshold of

BrightLevel is used for misalignment correction.

Memorize to

appropriate parameter if other algorithms use the threshold of BrightLevel (any

values from M1 to M8 can be used to register values).

Upper, Lower

Enter 255 in Upper and 0 in Lower.

Sample

Shows a brightness level which takes a speciﬁ ed percentage of an area if

Black/

White is used.

Table 1-13 Parameter of BrightLevel