1OM-1626-001_w.pdf - 第205页
1OM-1610 5-24 1. Specications : Chap.5 Mark Type D1 [mm] D2 [mm] Remarks Checker (Rectangle) 0.5 to 3.0 0.5 to 3.0 • Mark Reference : Contact of Two Rectangles Through Hole (Round) 0.5 to 3.0 0.5 to 1.5 • Mark Reference…
1OM-1610
5-23
1. Specications : Chap.5
1.4 Fiducial Marks
(1) Type and Size
Mark Type D1 [mm] D2 [mm] Remarks
Round
0.3 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center
Size of a punched
hole
Square
0.3 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
Equilateral
Triangle
(Upturned)
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
Cross
0.5 to 3.0 0.2 to 1.5
(D1/2 = > D2)
• Mark Reference :
Center of Gravity
Rectangle
0.5 to 3.0 0.5 to 3.0
• Mark Reference :
Center of Gravity
Checker
(Square)
0.5 to 3.0
−
•
Mark Reference :
Contact of Two
Squares
Diamond
(Rotated Square)
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
Equilateral
Triangle
(Downturned)
0.5 to 3.0 0 to 2.8
(D1 - 0.2 = > D2)
• Mark Reference :
Center of Gravity
• D2 :
Size of a punched
hole
Bow Tie
0.5 to 3.0
−
•
Mark Reference :
Contact of Two
Fan Shapes or
Triangles
D2
D1
D1
D1
D2
D1
(Front Side of Machine)
D2
D1
(Front Side of Machine)
(Front Side of Machine)
D1
D2
D2
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°
D2 :
•
T1E4-1
0911-001
1OM-1610
5-24
1. Specications : Chap.5
Mark Type D1 [mm] D2 [mm] Remarks
Checker
(Rectangle)
0.5 to 3.0 0.5 to 3.0
• Mark Reference :
Contact of Two
Rectangles
Through Hole
(Round)
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
(Rectangular)
0.5 to 3.0 0.5 to 2.0
• Mark Reference :
Center of Gravity
D1
D2
D1
D2
D1
D2
D1
D2
Or Or
(Front Side of Machine)
D2
D1
W
(
Front Side of Machine
)
D2
W
D1
Note : b
(Front Side of Machine)
D2
D1
D1
D2
Note : b
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) Specications of Line extended from a Pad Mark or a Through Hole.
(See below)
1/3 of Side
Range of Tangent
Lines related between
Pad Mark and Land
(Front Side of Machine)
(Front Side of Machine)
0.5 to 2.0
0.5 to 3.0
0.5 to 2.0
0.5 to 3.0
Range of Tangent
Lines related between
Pad Mark and Land
(Front Side of Machine)
(Range of Tangent
Lines related between
Pad Mark and Land)
(Front Side of Machine)
0.5 to 1.5
1.0 to 3.0
45°
Examples of
Land Locations
Range of Land
Location for
Through Hole
(45° at the bottom
right of the hole)
Range of Land
Location in
Increments of 90°
for Pad Mark
Range of Land
Location in
Increments of 45°
for Pad Mark
Min. 0.25
40°
1/3 of Side
40°
Unit : mm
F1E3
0911-001
1OM-1610
5-25
1. Specications : Chap.5
(2) Material
Copper Leaf, Nickel 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
F1E4
(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.
0911-001