Administrator’s Guide(CP45FV) Eng.pdf - 第73页
Boar d Definition 6-13 Memo On Fiducial Marks A fiducial mark has to satisfy several shape and material conditions. During the design of PCB, the following precautions should be taken. Seven patterns of fiducial mark…
Samsung Component Placer CP45FV Series Administrator’s Guide
Head2: Selects Head 2.
Head3: Selects Head 3.
Head4: Selects Head 4.
Head5: Selects Head 5.
Head6: Selects Head 6.
Beam: Selects Beam.
<Move> button
Moves the head assembly by rotating the shafts of the X, Y-axes driving
motors using the device selected from the <Device> combo box. Before
executing “Move”, the cell in the grid corresponding to the desired position
must be clicked on with a mouse.
<Get> button
Reads in the current position of the XY axis selected in <Device> combo box.
Before executing “Get”, the cell in the grid corresponding to the desired
position must be clicked on with a mouse.
<OK> button
Saves the fiducial mark data and closes the “Fiducial Position & Mark” dialog
box.
<Cancel> button
Closes the “Fiducial Position & Mark” dialog box without saving the fiducial
mark data.
<Scan> button
Executes a scan test on the set fiducial mark. The scan test inspects the actual
mark by using the set fiducial mark position and mark data and displays the
result as follows.
The position of the fiducial mark displayed on the above screen is the position of
the mark obtained through the scan test. If you want to update the value, click on
“Yes,” if not click on “No”.
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Board Definition
6-13
Memo
On Fiducial Marks
A fiducial mark has to satisfy several shape and material conditions. During the design of
PCB, the following precautions should be taken.
Seven patterns of fiducial mark shapes are possible as shown in the figure below
(top/bottom symmetry or right/left symmetry)
For the size of A, over 2.0 ㎜ is recommended. The width of mark sensor beam is
about ø0.7 ㎜ measured from the surface of PCB.
Make sure that any changes in color or shape(solder resist, lead pattern) that can
cause error should not be found within 2.0 ㎜ of fiducial mark's outer edges.
Make sure that the shading difference exits between the fiducial mark and the board
surrounding it.
To ensure search accuracy, coat the surface of the fiducial mark with copper or lead
so that the surface does not reflect. The line shaped fiducial marks can not be
searched with Beam.
A
A
<5. Mark List> group
A list of fiducial mark shape data.
<No> column
A serial number of fiducial mark shape.
<Name> column
The name of the fiducial mark(Up to 10 characters)
<Shape> column
Select the shape of fiducial mark. Available shapes are as follows.
Circle: Circular shape fiducial mark.
Diamond: Diamond shape fiducial mark.
Rectangle: Rectangular shape fiducial mark.
Samsung Component Placer CP45FV Series Administrator’s Guide
Rectangle2: Overlapping of 2 rectangular fiducial marks.
Triangle: Triangular shape fiducial mark.
Cross: Cross shape fiducial mark.
Butterfly: Butterfly shape fiducial Mark.
Sharp: Sharp(#) shape fiducial mark.
<Camera> column
Select a camera to inspect the fiducial mark. At present, it is fixed to “Move
Camera”.
<6. Form Data> group
Data on the shapes of fiducial marks.
<Size X> edit box
Set the size of fiducial mark in X direction.(Based on the machine coordinate
system)
<Size Y> edit box
Set the size of fiducial mark in Y direction.(Based on the machine coordinate
system)
<Arm> edit box
Set the width of the bar of cross shape fiducial marks.
<Polarity> combo box
Select the color of fiducial mark. Available colors are as follows.
White: the mark looks lighter than the surroundings.
Black: the mark looks darker than the surroundings.
<Thickness> edit box
Set the thickness of the fiducial mark.
The value of 0 denotes a full fiducial mark.
0 A value other than 0 denotes that value for the thickness of the exterior line.
<Rotation> combo box
Select the rotation angle of fiducial mark. In the case of triangles, the
registered form has the corner facing upward, but there are occasions where
the corner is actually facing sideways. In those cases, select the rotation
angle.
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