1OM-1603-006_w.pdf - 第207页
1OM-1603 4-20 4. Fiducial Marks : Chap.4 Mark Type D1 [mm] D2 [mm] Remarks r e k c e h C ) e l g n a t c e R ( 0.5 to 3.0 0.5 to 3.0 • Mark Reference : Contact of Two Rectangle s e l o H h g u o r h T ) d n u o R ( 0.5 t…
1OM-1603
4-19
4. Fiducial Marks : Chap.4
4. Fiducial Marks
(1) Type and Size
Mark Type D1 [mm] D2 [mm] Remarks
dnuoR
0.3 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center
• D2 :
Size of a punched
hole
erauqS
0.3 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
laretaliuqE
elgnairT
)denrutpU(
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
ssorC
0.5 to 3.0 0.2 to 1.5
(D1/2 = > D2)
• Mark Reference :
Center of Gravity
elgnatceR
0.5 to 3.0 0.5 to 3.0
• Mark Reference :
Center of Gravity
rekcehC
)erauqS(
0.5 to 3.0
−
•
Mark Reference :
Contact of Two
Squares
dnomaiD
)erauqS detatoR(
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
laretaliuqE
elgnairT
)denrutnwoD(
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
eiT woB
0.5 to 3.0
−
•
Mark Reference :
Contact of Two
Fan Shapes or
Triangles
2D
1D
1D
1D
2D
1D
(Front Side of Machine)
2D
D1
(Front Side of Machine)
(Front Side of Machine)
D1
2D
2D
D1
(Front Side of Machine)
D1
D1
D1
D2
D1
(Front Side of Machine)
Or
D1
D1
D1
Or
D1
(Front Side of Machine)
(Front Side of Machine)
D2
D1
D1
D1
45°
D2
D1
(Front Side of Machine)
45°
T1E4-1
1012-005
1OM-1603
4-20
4. Fiducial Marks : Chap.4
Mark Type D1 [mm] D2 [mm] Remarks
r e k c e h C
) e l g n a t c e R (
0.5 to 3.0 0.5 to 3.0
• Mark Reference :
Contact of Two
Rectangles
e l o H h g u o r h T
) d n u o R (
0.5 to 3.0 0 to 2.8
• Mark Reference :
Center
• D2 :
Size of a punched
hole
• W : Min. 0.25 mm
k r a M d a P
) r a l u g n a t c e R (
0.5 to 3.0 0.5 to 3.0
• Mark Reference :
Center of Gravity
D1
2 D
D1
2 D
D1
2 D
D1
2 D
Or Or
( Front Side of Machine)
T1E4-2
Note
(a) The error of the mark size should be within ± 10% by comparison with the
reference pattern.
(b) A through hole or a pad mark should have only one land which is directed
in increments of 45°.
(2) SpecicationsofLineextendedfromaPadMarkoraThroughHole.
(See below)
80°
25
45°
Unit : mm
F1E13
1108-005
1OM-1603
4-21
4. Fiducial Marks : Chap.4
(3) Material
Copper Leaf, Ni Plating, Solder Plating, Solder Leveler, Au 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 ducial mark. They may cause false recognition.
(Front Side of Machine)
1.0
X
Y
1.0
1.0
1.0
1.01.0
1.0
1.0
Example:
Unit : mm
F1E14
(b) The shape of PCB (a cutout, a punched hole), the external elements (light
reected from a structure, light emitted from an external device, etc.) may
sometimes interfere with the recognition of ducial marks.
(c) A ducial mark should make ample contrast with the surroundings. (To
prevent false recognition)
(d) Anything resembling a pattern similar to a ducial mark should not exist in
the designated window. If one exists, it may cause false recognition.
(e) A test may be required when the ducial mark cannot be recognized
because of the extreme warpage of the PCB.
1007-004