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III- 27 Programming Manual Part III Inspection Algorithm 1.10.3 Setting Procedur e of Shift Inspection Step1: Select a lighting that displays a polarity visually clear from the Lighting drop-down list. Step2: Adjust the …

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Programming Manual

Part III Inspection Algorithm

1.10 Diagonally

1.10.1 Inspection Overview

Diagonally is the algorithm to inspect the average luminance of the inspection windows which are

located on symmetrical positions from the center of component.

Diagonally is suitable for polarity inspection of IC components.

1.10.2 Parameter Setting

Figure 1-29 Diagonally

Parameter Description

Lighting Select a lighting that displays a polarity visually clear.

Algorithm Select Diagonally.

Win Setting[1-3] Set the number of the windows to be compared.

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.

Memorize to -

Upper, Lower

If brightness level of polarity is higher than brightness level of component body, enter 255

in the Upper ﬁ eld and 1 in the Lower ﬁ eld. If brightness level of polarity is lower than

brightness level of component body, enter -1 in the Upper ﬁ eld and -255 in the Lower ﬁ eld.

Sample

If 1 is entered in Win setting, the brightness level difference between the window

and the window on the point-symmetric point will be calculated and its result

becomes the sample value.

If 2 is entered, in addition to operations of 1, the brightness level difference between

the window and the window at the center point on the component will also be

calculated. Two brightness level difference values are compared and the bigger one

becomes the sample value.

If 3 is entered, in addition to operations of 1, the brightness level difference between

the window which the setting is applied and the window on the line-symmetric point

will be calculated. Three brightness level difference values are compared and the

biggest one becomes the sample value.

Table 1-8 Parameter of Diagonally

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Programming Manual

Part III Inspection Algorithm

1.10.3 Setting Procedure of Shift Inspection

Step1: Select a lighting that displays a polarity visually clear from the Lighting drop-down list.

Step2: Adjust the Diagonally inspection window position to surround the polarity mark.

Figure 1-30 Inspection Window of Diagonally

Step3: Set the number of the windows to be compared in Win Setting.

㪧㪈㪧㪈

㪧㪈

㪧㪉

㪧㪊

(a) Win Setting 1 (b) Win Setting 2 (c) Win Setting 3

Sample value = Base - P1

Calculate Base - P1, Base - P2, and Base - P3.

Max value is sample value.

Calculate Base - P1 and Base - P2.

Max value is sample value.

㪙㪸㫊㪼㪙㪸㫊㪼㪙㪸㫊㪼

Figure 1-31 Win Setting

Step4: If the brightness level of the polarity mark is higher than the brightness level of the component

body, enter 255 in the Upper ﬁ eld and 1 in the Lower ﬁ eld. If the brightness level of the

polarity mark is lower than the brightness level of the component body, enter -1 in the

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

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 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