N7201A616E00_0317 - 第649页
NPM-W 2 EJM7DJ-MB-08O-00 8-2-1 -4 APC system
NPM-W2 EJM7DJ-MB-08O-00
8-2-1-3
System
function
details
Various functions 2
Operating procedure
8-2-1
The placement position accuracy, not only on the surface of solder but also of flip chips placed onto the land
by fluxes or solder transfer, is intended to be improved through the feed-forward communication of the
measurement result of land positions.
Also, by inspecting the land areas and positions and then skipping the placement of all components to bad
patterns, if any, it seeks to cut down on the cost associated with component losses.
The placement standard needs to be set to “Land” in the DGS setup of detailed data on components.
By recognizing directly the land position itself where components are placed, the components can be
placed with a high degree of accuracy, providing also an appropriate response to the component
deformation as an example.
■Land position measurement function
The exclusive recognition mode, which supports the
position measurement of land with wire patterns, is
installed.
Land for flip chip
The land position is
accurately measured by the
special processing that
calculates the center from
the set shape and shape.
Land defect
Skips placement of components into the
pattern where land defects are found.
In the case where solder inspection (land) defects are found in a pattern on a multi-surface pattern board,
such as a module component, it is equipped with the function that skips the placement of any components
into the pattern.
■Solder/land inspection and defect pattern placement skip function
Land defect
Land chip
Foreign
material
Example)
Solder inspection
standard
Feed-forward function
NPM-W2 EJM7DJ-MB-08O-00
8-2-1-4
APC
system
NPM-W2 EJM7DJ-MB-08O-00
System
function
details
Operating procedure
8-2-2
8-2-2-1
■Setting items by a PCB
Explains the setup method per PCB or component basis.
●Ethernet conducts the communication between machines.
●When an inspection machine manufactured by other companies is used, see the operating instruction of
[Other company’s interface software].
Setting item Description
Placement control Choose [ON] to control the placement position with APC.
Inspection control Choose [ON] to control the inspection position with APC.
(Inspects components based on the APC control position.)
Correction mode Placement point unit:
●The correction value measured for each placement point is applied for
each placement point.
●The correction amount of the component, whose [APC control switch] is
OFF, becomes zero.
●The correction amount of the component, of which [APC control switch]
is ON and also which failed to be measured, averages that of other
components measured successfully.
Pattern unit:
●After measuring the components, of which the measurement control is
set to [Target], within each pattern, the average value of their correction
amount is applied for other components belonging to each pattern.
●With no component to be measured, the correction amount of all the
components becomes zero.
●If there is no component to be measured in a pattern, or if all the
components in a pattern failed to be recognized, the correction amount
of all the components belonging to the pattern averages that of the
components measured successfully in other patterns.
Pattern unit (2 point correction):
●Using the correction value of more than 2 components selected from the
same pattern, the correction amount, obtained by using the rotation of
the PCB recognition correction and the calculating method of the PCB
expansion and contraction correction, is applied for the components
included in the pattern.
●As is the case with the PCB recognition, a minimum of a pair of 2
components, located on cater corner, is set for each pattern as a
correction reference.
Average value
application for a
misalignment amount
during placement unit
correction
Choose [ON] and input the setting value if the average value
misalignment amount is set.
Apply the average value of the pattern if the placement position correction
value exceeds this value, which occurs as a measurement error.
Various settings 1
Feed-forward function