2OM-1064-002.pdf - 第41页

2.3.4 P .E.C. Fiducial Marks (1) T ype and Size T able 2. 1-1 M ark Typ e D1 D2 Rema rks Roun d 0.5 to 2.0 m m ( ± 10%) 0 to 1.8 mm ( ± 10%) (D1 - 0.2 ≥ D2) z Mark Re fe re n ce : Ce nte r z D2: Size o f a pu nch ed hole…

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RECOG ALGO
Set a P.C.B. recognition algorithm.
“PATTERN”
“EDGE”
•
In normal cases, set “PATTERN” in the data box.
[PATTERN MATCHING]
Set “PATTERN” when there is enough difference in contrast
between a fiducial mark and a P.C.B. (Recognition by Pattern
Matching Method)
2. Pattern Program
P.C.B. (Bright）
Shadow of Fiducial Mark
Fiducial Mark (Bright)
Fig. 2.25
[EDGE DETECTION]
Set “EDGE” when there is not much difference in contrast
between a fiducial mark and a P.C.B. and the shadow of the
fiducial mark is cast around the mark. (Correction by Mark
Edge Detection Method)
Fig. 2.26
9910-001 2-28 Tg0247-PM-PM
P.C.B.
Fiducial Mark (Bright)
2.3.4 P.E.C. Fiducial Marks
(1) Type and Size
Table 2.
1-1
Mark Type D1 D2 Remarks
Round
0.5 to 2.0 mm (±10%) 0 to 1.8 mm (±10%)
(D1 - 0.2 ≥ D2)
z
Mark Reference:
Center
z
D2:
Size of a punched
hole
Square
0.5 to 2.0 mm (±10%) 0 to 1.8 mm (±10%)
(D1 - 0.2 ≥ D2)
z
Mark Reference:
Center of Gravity
z
D2:
Size of a punched
hole
Equilateral
Triangle
(upturned)
0.5 to 2.0 mm (±10%) 0 to 1.8 mm (±10%)
(D1 - 0.2 ≥ D2)
z
Mark Reference:
Center of Gravity
z
D2:
Size of a punched
hole
Cross
0.5 to 2.0 mm (±10%) 0.2 to 1.0 mm (±10%)
(D1 / 2 ≥ D2)
z
Mark Reference:
Center of Gravity
Rectangle
0.5 to 2.0 mm (±10%) 0.5 to 2.0 mm (±10%)
z
Mark Reference:
Center of Gravity
Checker
(square)
0.5 to 2.0 mm (±10%)
z
Mark Reference:
Contact of Two
Squares
Diamond
(rotated square)
0.5 to 2.0 mm (±10%) 0 to 1.8 mm (±10%)
(D1 - 0.2 ≥ D2)
z
Mark Reference:
Center of Gravity
z
D2:
Size of a punched
hole
Equilateral
Triangle
(downturned)
0.5 to 2.0 mm (±10%) 0 to 1.8 mm (±10%)
(D1 - 0.2 ≥ D2)
z
Mark Reference:
Center of Gravity
z
D2:
Size of a punched
hole
Bow Tie
0.5 to 2.0 mm (±10%)
z
Mark Reference:
Contact of Two
Fan Shapes or
Triangles
D2
D1
D1
D1
D2
D1
(Front Side of
Machine)
(Front Side of
Machine)
D2
D1
(Front Side of
Machine
)
(Front Side of
Machine
)
(Front Side of
Machine
)
D1
D2
D2
D1
(Front Side of
Machine
)
(Front Side of
Machine
)
D1
D1
(Front Side of
Machine
)
(Front Side of
Machine
)
D1
D2
D1
(Front Side of
Machine)
(Front Side of
Machine)
Or
D1
D1
D1
Or
D1
(Front Side of
Machine
)
(Front Side of
Machine
)
45
°
D1
D1
D2
45
°
(Front Side of
Machine)
(Front Side of
Machine)
D2
D1
D1
2. Pattern Program
9910-001 2-29 Tg0247-PM-PM
Table 2.1-2
2. Pattern Program
Mark Type D1 D2 Remarks
Checker
(rectangle)
0.5 to 2.0 mm (±10%) 0.5 to 2.0 mm (±10%)
z
Mark Reference:
Contact of Two
Rectangles
Through Hole
(
round
)
1.0 to 2.0 mm 0.5 to 1.5 mm
z
Mark Reference:
Center
z
D2: Size of a
punched hole
z
W: Min. 0.25 mm
Pad Mark
(rectangle)
0.5 to 2.0 mm 0.5 to 2.0 mm
z
Mark Reference:
Center of Gravity
D1
D2
OR
D1
D2
(Front Side of
Machine)
D1
D2
OR
D1
D2
(Front Side of
Machine)
Note a
D2
D1
(Front Side of
Machine)
D2
D1
(Front Side of
Machine)
D2
D1
W
(Front Side of
Machine)
D2
W
D1
(Front Side of
Machine)
Note a
9910-001 2-30 Tg0247-PM-PM