3OM-1343-008_w.pdf - 第115页

3-30 AKFEDT -ID T able 3C2-2 Mark T ype D1 [mm] D2 [mm] Remarks Checker (Rectangle) D1 D1 D1 D1 D2 D2 D2 D2 or or (Front Side of Machine) 0.5 to 3.0 0.5 to 3.0 · Mark Reference: Contact of T wo Rectangles Through Hole (R…

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3-29
AKFEDT-ID
0601-002
1.2 Operation Data
1.2.4 Fiducial Marks
(1) Shape and Size
Table 3C2-1
Mark Type D1 [mm] D2 [mm] Remarks
Round
D1
D1
D2
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
•
Mark Reference:
Center
•
D2: Diameter of
Punched Hole
Square
D1
D1
D2
(Front Side of Machine)
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
•
Mark Reference:
Center of Gravity
•
D2: Diameter of
Punched Hole
Equilateral
Triangle
(Upturned)
D1
D1
(Front Side of Machine)
D2
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
•
Mark Reference:
Center of Gravity
•
D2: Diameter of
Punched Hole
Cross
D1
(Front Side of Machine)
D2
0.5 to 3.0 0.2 to 1.5
(D1/2 = > D2)
•
Mark Reference:
Center of Gravity
Rectangle
D1
D2
(Front Side of Machine)
D1
D2
0.5 to 3.0 0.5 to 3.0
•
Mark Reference:
Center of Gravity
Checker
(Square)
D1
D1
(Front Side of Machine)
0.5 to 3.0
•
Mark Reference:
Contact of Two
Squares
Diamond
(Rotated Square)
D1
45o
D1
D2
45o
(Front Side of Machine)
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
•
Mark Reference:
Center of Gravity
•
D2: Diameter of
Punched Hole
Equilateral
Triangle
(Downturned)
D2
D1
D1
(Front Side of Machine)
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
•
Mark Reference:
Center of Gravity
•
D2: Diameter of
Punched Hole
Bow Tie
D1
D1
D1
D1
or
(Front Side of Machine)
or
0.5 to 3.0
•
Mark Reference:
Contact of Two
Fan Shapes or
Triangles
3-30
AKFEDT-ID
Table 3C2-2
Mark Type D1 [mm] D2 [mm] Remarks
Checker (Rectangle)
D1
D1
D1
D1
D2
D2
D2
D2
or
or
(Front Side of Machine)
0.5 to 3.0 0.5 to 3.0
·
Mark Reference:
Contact of Two
Rectangles
Through Hole
(Round)
D2
D1
W
(Front Side of Machine)
D2
W
D1
Note: b
0.5 to 3.0 0.5 to 1.5
·
Mark Reference:
Center
·
D2: Size of a
punched hole
·
W: Min. 0.25 mm
Pad Mark
(Rectangle)
(Front Side of Machine)
D2
D1
D2
D1 Note: b
0.5 to 3.0 0.5 to 2.0
·
Mark Reference:
Center of Gravity
Note
(a) The error in the mark size should be within ±10%, compared with the
reference pattern.
(b) A through hole or a pad mark should have only one land which is
directed in increments of 45°.
(c) SpecicationsofLineextendedfromaPadMarkoraThroughHole.
Unit: mm
Range of Tangent
Lines related between
Pad Mark and Land
Range of Land
Location in
Increments of 45o
for Pad Mark
Range of Land
Location in
Increments of 90o
for Pad Mark
(Front Side of Machine)
1/3 of Side
0.5 to 2.0
0.5 to 2.0
Examples of
Land Locations
Range of Land
Location for
Through Hole
(45oat the bottom
right of the hole)
0.5 to 1.5
1.0 to 2.0
Min.0.25
45o
40o
40o
0.5 to 2.0
0.5 to 2.0
(Front Side of Machine)
(Front Side of Machine)
(Front Side of Machine)
Range of Tangent
Lines related between
Pad Mark and Land
1/3 of Side
(Range of Tangent
Lines related between
Pad Mark and Land)
Fig. 3C24
0711-003
1.2 Operation Data
3-31
AKFEDT-ID
(2) Material for Marks
Copper Leaf
Nickel Plating
Solder Plating
Solder Leveler
Gold Plating
Note
(a) A copper leaf, a resist, a coating, a silk print, and a punched hole
should not exist in the range of 1.0 mm in both X and Y directions
from the outermost edges of a fi ducial mark. They may cause false
recognition.
Example:
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Y
X
(Front Side of Machine)
Unit: mm
Fig. 3C25
(b) The shape of PCB (a cutout, a punched hole), the external elements
(light refl ected from a structure, light emitted from an external device,
etc.) may sometimes interfere with recognition of fi ducial marks.
(c) A fi ducial mark should make ample contrast with the surroundings.
(To prevent false recognition)
(d) Anything resembling a pattern similar to a fi ducial mark should not
exist in the designated recognition window. If one exists, it may cause
false recognition.
(e) A test may be required when the fi ducial mark cannot be recognized
because of the extreme warpage of the PCB.
0601-002
1.2 Operation Data