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6 Product / Package Form User Manu al Line Computer UNIX 6.1 Package Form Editor Software Version 501.xx 01/99 Issue 6 - 44 Changing a pin model ● Select th e desir ed pin fro m the vie w area by double-cl icking . The w…

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User Manual Line Computer UNIX 6 Product / Package Form
Software Version 501.xx 01/99 Issue 6.1 Package Form Editor
6 - 43
Editing possibility no. 1:
●
Click on editing field "Pin length".
●
Enter value and complete entry by pressing RETURN. (The graph. display is updated).
The automatically computed default values are entered in the fields "Pin length tolerance" and
"Contact length".
●
Click on editing field "Pin width".
●
Enter value and complete entry by pressing RETURN. (Die graf. Darstellung wird aktualisiert).
The automatically computed default values are entered in the fields "Pin width tolerance" and
"Contact width".
●
Change default values, as required, and complete each entry by pressing RETURN.
NOTE
If invalid values (e.g. excessive value for the pin length) or characters (e.g. letters, or a comma as
decimal point) were entered, the field being edited is surrounded by a red frame and the entry must
be corrected.
●
Completion of entries to be confirmed by clicking on
OK
.
The window is closed.
Editing possibility no. 2:
●
Click on the individual editing fields and enter the values.
NOTE
Every time the RETURN key is pressed following an entry in one of the editing fields, the graphical
representation of the package form in the view area is automatically updated.
●
After all entries have been completed, click on
OK
.
If the values entered are valid, the window will be closed.
NOTE
If invalid values were entered, a dialog box containing an appropriate error message is displayed (see
page 6 - 15). The fields containing the invalid values are surrounded by a red frame.
The dialog box must be acknowledged by clicking on
OK
first. Thereafter, the entries can be
corrected and confirmed by clicking on
OK
.
The edited values are retained when the window is closed. If, however, no
saving procedure is car-
ried out upon exiting the Package Form Editor, the edited data will be lost.
6 Product / Package Form User Manual Line Computer UNIX
6.1 Package Form Editor Software Version 501.xx 01/99 Issue
6 - 44
Changing a pin model
●
Select the desired pin from the view area by double-clicking.
The window for editing the data for the pin model is opened (see Fig. 6.1.21).
●
Click on editing field containing the value to be changed (cursor to be positioned in front of the
value).
●
Delete value using the DELETE key and enter new value.
(When the RETURN key is pressed in the blank field, the corresponding default value is automa-
tically calculated and entered into the field. Excepted from this are values for the pin length and
pin width because these values cannot be derived from the values already entered).
NOTE
If the current pin model is contained in several groups, the changes performed on the model data are
also transferred to those groups.
●
If the changes are to apply only to the model in the current group, the
Group only
button must be
clicked on in lieu of finishing by choosing "OK".
●
After all the required changes have been completed, click on
OK
.
If the values entered are valid, the window will be closed.
User Manual Line Computer UNIX 6 Product / Package Form
Software Version 501.xx 01/99 Issue 6.1 Package Form Editor
6 - 45
6.1.3.3 Description of a Package Form of the "BGA" Type
For optical centering by means of the Vision System, the package form of a BGA must be completely described.
For this purpose, following the entries of the nominal dimensions (see section 6.1.2.5) the following steps must
be performed:
-
description of the grid groups
-
description of the BGA models
First the window for the description of the grid group (see Fig. 6.1.25) is opened. Only after a grid group has
been defined can the window for the description of a ball model be opened (siehe Fig. 6.1.26).
Explanation of Terms Used in GF-Data for the Description of "Ball" Models and Grid Groups
of the "BGA" Package Form Type:
-
BGA
Geometry of the "ball"
A model is defined by:
ball radius
[µ
m]
radius tolerance
[µ
m]
-
Grid group
Group of "balls" of the same model, arranged in a grid array
(grid element spacing e.g. 1.27 mm)
A grid group is defined by:
number of (vertical) columns
number of (horizontal) rows
grid width
[µ
m]
grid height [
µ
m]
position of grid group center
(x and y-offsets) relative to the
component center
[µ
m]
(each grid group is symmetric
to the group center).