Viscom_Brochure_Auxiliary_Modules_en.pdf - 第5页
In-line trend analysis Display of q uality impro vement ov er a period Documentation of process results Recognition of defect groupings A voidance of series defects Definition of process intervention thresholds Closed-Lo…
SPC Software
Wide range of filter functions for
statistical evaluations
The SPC software is employed where processes have
to be controlled by means of short regulating
loops. The software continuously accepts the inspec-
tion data which has been processed by the Viscom
inspection systems and displays deviation ten-
dencies in paste print, chip placement, solder-
ing or bonding. It is thus possible to detect
changes in the manufacturing process in
good time.
This is presented in the form of configu-
rable diagrams which can be accessed
by the SPC server from different locations
via the network. In addition to this, it is
possible to define the process inter-
vention thresholds, so that the process
is interrupted if a specific defect rate is
exceeded. All analyses can be output as
either event-oriented or characteristic-ori-
ented and displayed with the help of a vari-
ety of diagram types. In addition, there is a
very interesting feature: the placement ma-
chine data of each defective component
can also be filed when needed.
Viscom SPC software is fully network-
capable, i.e. data may be analysed and
exported by any number of machines. It is
barcode-controlled and regulates all data re-
quired for evaluation. The SPC software permits
access to specific data, such as that assigned to
a certain dispenser or a particularly critical type
of component. Operation is simple and the soft-
ware is compatible with all Viscom AOI/AXI systems.
It brings a new concept for defect definition. The ad-
vantages of these features are particularly the avoi-
dance of series defects and the documentation of
process results.
In-line trend analysis
Display of quality
improvement over a period
Documentation of
process results
Recognition of defect
groupings
Avoidance of series defects
Definition of process
intervention thresholds
Closed-Loop-Ready
Programming Station PST34
The off-line programming station makes it possible to
create and optimize the inspection programs without
having to use the inspection system. CAD data are veri-
fied, component types assigned and the program is
created with the help of diagram.
The user interface Viscom EasyPro is based on
a model-oriented component library and intuitive
programming. The operator virtually sees the
component before his eyes, to make program-
ming easy and convenient. The essential func-
tions of EasyPro are a user-friendly user inter-
face, intelligent data import and the
IPC-compliant Viscom inspection libra-
ry, which enables inspection plan creati-
on in only one step.
The user is also guided through the „dia-
log“, i.e. whenever help is required, by so-
called „wizards“. One wizard covers the en-
tire program creation process. In the final
step, inspection patterns are assigned from
the library using the so-called „drag and
drop“ technique (EasyGen).
One of the central features of this software is
the integrated defect verification Trus-
tedChange, which reduces pseudo defect
incidence and verifies error escape. It is
used for checking against stored bad patterns –
e. g. from the verification station and blank,
soldered printed circuit boards. Whenever a pro-
gram modification is carried out to reduce the
incidence of pseudo defects, a check is also carried
out to ensure that previously detected real defects
which were validated by the verification station are
still being detected. With the integrated defect verifi-
cation TrustedChange, the quality of the inspection
programs can be ensured for own production, as well as
audits. It is of course possible to co-ordinate several in-
spection systems from a single programming station, as
well as operate them with programs.
Time-optimized creation and
maintenance of inspection schedules