2OM-1088-002.pdf - 第79页
Tg0699-PM-D2 0207-001 Chapter 1 2-20 1.2 Operation Data (8) Fiducial Marks P .E.C. Fiducial Marks Material • Copper Leaf (Au and Ni plating possible but mirror surfaces cannot be used.) • Solder-Plated Marks (Consult our…
Tg0699-PM-D2
(6) Level
Set the threshold levels of the fiducial marks.
High : Both identity and similarity between the shape of a
fidu-cial mark and the real image are detected on a
high level.
Middle : Either identity or similarity between the shape of a
fidu-cial mark and the real image are detected on a
middle level.
Low : Both identity and similarity between the shape of a
fidu-cial mark and the real image are detected on a
low level.
Identity :
Identity between the shapes of the specified mark and
the real image (including the size)
Similarity :
Similarity between the shapes of the specified mark
and the real image
(7) Lighting
A lighting mode can be specified to illuminate the P.C.B.
Only “Normal” can be selected for the standard machine
(standard specifications).
Normal
Select this when there is enough difference in contrast be-
tween a fiducial mark and a P.C.B. (Recognition by Pattern
Matching Method)
0207-001 Chapter 1 2-19
1.2 Operation Data
P.C.B.
Fiducial Mark
(Bright)
Level
High
Fig.3B46
Lighting
Normal
Fig.3B47
Fig. 3B48
Tg0699-PM-D2
0207-001 Chapter 1 2-20
1.2 Operation Data
(8) Fiducial Marks
P.E.C. Fiducial Marks
Material
• Copper Leaf (Au and Ni plating possible but mirror surfaces cannot be
used.)
• Solder-Plated Marks (Consult our marketing department for details.)
• Solder Leveler (Consult our marketing department for details.)
Type and Size
Table 3B2
Tg0699-PM-D2
A through hole or a pad mark should have only one lead
which is directed in increments of 45°.
Consult our marketing department or sales agency for
details such as dimensions, etc.
0207-001 Chapter 1 2-21
1.2 Operation Data
Table 3B3