KE2010.Instruction Manual.Ver.2.01,Rev.08.pdf - 第22页

1 − 5 0.45 Figure 1.1.2. 4 OFP/BQF P PLCC Electrolytic capacitor (Between the botto m s urface of the mold and t he foot of the leads) Laser align meas urement positi on (Between the botto m s urface of the mold and t he…

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1 − 4
(2) Laser align measurement position for major component types
0.25
Figure 1.1.2.3
Square chip
MELF
SOT
SOP/TSOP
SOJ
(Center between the top and
bottom surfaces of the
component)
(Center of the component)
(0.25 mm above the top of the component)
Mold
(Center between the bottom surface
of the component and the foot of the
leads)
(Center between the bottom surface
of the component and the foot of the
leads)
Laser align
measurement
position
Laser align
measurement
position
Laser align
measurement
position
Laser align
measurement
position
Laser align
measurement
position
1 − 5
0.45
Figure 1.1.2.4
OFP/BQFP
PLCC
Electrolytic
capacitor
(Between the bottom surface of the
mold and the foot of the leads)
Laser align
measurement
position
(Between the bottom surface of the
mold and the foot of the leads)
Laser align
measurement
position
(0.45 mm from the bottom surface of
the mold)
Laser align
measurement
position
Mold
1 − 6
(3) Laser height
− Laser measurement height (in laser centering method)
The figure below indicates the measurement position when the laser centering
method is selected. The distance between the nozzle tip to the measurement
position which is radiated with a laser beam is called “laser height”. The laser height
is specified in the component data.
Figure 1.1.2.5 Definition of Laser Height
− Default Laser height
Default laser heights are set for some component types and heights. Table 1.1.2.5
shows the relation between component heights and default laser heights.
Table 1.1.2.5 Component Types and Default Laser Heights
Component type Measurement position Laser height (mm)
Square chip
t
-
2
MELF
t
-
2
Aluminum
electrolytic
capacitor
- (t –)
= 0.45
GaAsFET
-0.5
(To be continued)
Nozzle
Laser height
Laser beam
Nozzle
Component
Component
height
Measurement
p
osition with laser
Component height
Measurement
p
osition with laser
Component height
Measurement
p
osition with laser
Measurement
p
osition with laser
Component height