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3 Technical data User Manual SIPLACE HF Series 3.6 Placement heads Software Version SR.505.xx 05/2004 US Edition 108 3.6.4 SIPLACE T winHead for high-precision IC placement 3 Fig. 3.6 - 9 T winHead for high-precision IC …
User Manual SIPLACE HF Series 3 Technical data
Software Version SR.505.xx 05/2004 US Edition 3.6 Placement heads
107
3.6.3.3 Technical data
3
6-segment Collect&Place head
with standard component cam-
era
6-segment Collect&Place head
with DCA camera
Range of components 0603 to 32 x 32 mm² 0201 to flip-chip, bare die
Component specification
Max. height
Min. lead pitch
Min. bump pitch
Min. ball bump ∅
Min. dimensions
Max. dimensions
Max. weight
8.5 mm
0.5 mm
0.56 mm
0.32 mm
1.6 x 0.8 mm²
32 x 32 mm²
5 g
8.5 mm
0.4 mm
0.2 mm
0.11 mm
0.6 x 0.3 mm²
13 x 13 mm²
5 g
Programmable set-down
force
2.4 N - 5.0 N 2.4 N - 5.0 N
Nozzle types 8 xx, 9 xx 8 xx, 9 xx
X/Y accuracy ± 60 µm/4 σ ± 55 µm/4 σ
Angular accuracy ± 0.3°/4 σ ± 0.3°/4 σ
3 Technical data User Manual SIPLACE HF Series
3.6 Placement heads Software Version SR.505.xx 05/2004 US Edition
108
3.6.4 SIPLACE TwinHead for high-precision IC placement
3
Fig. 3.6 - 9 TwinHead for high-precision IC placement
3
(1) Pick&Place module - the TwinHead consists of 2 Pick&Place modules
(2) DP axis
(3) Z axis drive
(4) Incremental distance measuring system for the Z axis
User Manual SIPLACE HF Series 3 Technical data
Software Version SR.505.xx 05/2004 US Edition 3.6 Placement heads
109
3.6.4.1 Description
This sophisticated placement head consists of two placement heads of the same type coupled to-
gether (twin head). Both heads work using the Pick&Place principle. The TwinHead is suitable for
processing particularly difficult or large components. Two components are picked up by the place-
ment head, optically centered on the way to the placement position and rotated into the necessary
placement angle. They are then placed gently and accurately onto the PCB with a controlled blast
of air.
New nozzles (type 5xx) have been developed for the TwinHead. It is also possible to fit an adapter
and then use type 4 nozzles for the Pick&Place head and type 8xx and 9xx nozzles for the Col-
lect&Place heads.
Checking and self-learning functions 3
The TwinHead's reliability can be further increased with various checking and self-learning func-
tions.
– For example, vacuum checks at the nozzles indicate whether the component was picked up or
set down correctly.
– High-resolution, intelligent vision modules, such as the fine-pitch and flip-chip vision modules,
identify and correct minute deviations from the desired component position, thus guaranteeing
a correct placement position. The component cameras are permanently fixed to the machine
frame.
– The component package form is also checked, and the component is not placed if the geomet-
ric data thus determined differs from the programmed data.
– A force sensor measures and monitors the specified component placement forces.
– If the compressed air or power fails, the vertical axis (Z axis) is raised to a safe position in order
to prevent a head crash.
3.6.4.2 Description of the functions
The TwinHead consists of two Pick&Place heads that are coupled to one another, but are con-
trolled independently. Each head has two axes - the Z and the DP axis (see Fig. 3.6 - 8
).
The traversing path of the Z axis is detected via a high-resolution, linear incremental measuring
system. The Z axis performs a vertical movement. A linear motor raises and lowers the Z axis, and
components are picked up from conveyors or trays and lowered onto the PCB. The Z axis is an
"intelligent axis". It "notes" the pick-up height for conveyors and trays and the placement height
for each component. This can speed up the placement process. The programmed placement
force is measured and monitored by a force sensor.