1OM-1625-004_w.pdf - 第196页
1OM-1603 4-19 4. Fiducial Marks : Chap.4 4. Fiducial Marks (1) T ype and Size Mark Type D1 [mm] D2 [mm] Remarks d n u o R 0.3 to 3.0 0 to 2.8 (D1 - 0.2 = > D2) • Mark Reference : Center • D2 : Size of a punched hole e…
1OM-1603
4-18
3. Conditions for Component Placement : Chap.4
(3) Limit of Closest Distance to Obstacle
•
The closest distance between
an obstacle (See each sectional view.) and
the vacuum nozzle or component should be 0.5 mm or more.
The
upper
surface
of
the PCB is the reference plane.
0.5 ot 3.0
0.5 ot 3.0
3.0
0.2
3.0
0.2
erom ro mm 5.0
PCB PCB
(Rear Side Machine)(Front Side Machine)
ecnatsiD tsesolC fo timiL
Unit : mm
F1E12
1007-004
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
rekcehC
)elgnatceR(
0.5 to 3.0 0.5 to 3.0
• Mark Reference :
Contact of Two
Rectangles
eloH hguorhT
)dnuoR(
0.5 to 3.0 0.5 to 1.5
• Mark Reference :
Center
• D2 :
Size of a punched
hole
• W : Min. 0.25 mm
kraM daP
)ralugnatceR(
0.5 to 3.0 0.5 to 2.0
• Mark Reference :
Center of Gravity
D1
2D
D1
2D
D1
2D
D1
2D
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) Specications of Line extended from a Pad Mark or a Through Hole.
(See below)
80°
25
45°
Unit : mm
F1E13
1007-004