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User’s Manual Line Computer UNIX 6 Product / Package Form Software Version 402.xx Edition 03/97 6.1 Package Form Editor 6 - 21 Editing possibility no. 2: ● Click on the i ndividual editin g fields and enter the values. ☞…

6 Product / Package Form User’s Manual Line Computer UNIX

6.1 Package Form Editor Software Version 402.xx Edition 03/97

6 - 20

In the following, the meaning of the individual editing fields for the pin data is explained (see also

Fig. 6.1.5 and Fig. 6.1.6).

Pin length

[mm] length of the pin

Pin width

[mm] width of the pin

Pin length tolerance

[mm] max. permissible deviation from the pin length

Pin width tolerance

[mm] max. permissible deviation from the pin width

Contact length

[mm] length of the pin that makes contact with the PCB

Contact width

[mm] width of the pin that makes contact with the PCB (

pin width)

☞

NOTE

From some values of the pin data the default values for the remaining pin data can be derived:

e.g. pin width (Wid)= contact width (CoW)

pin length (Len)>contact length (CoL)

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

The window is closed.

User’s Manual Line Computer UNIX 6 Product / Package Form

Software Version 402.xx Edition 03/97 6.1 Package Form Editor

6 - 21

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 display area is automatically updated.

●

After all entries have been completed, click on

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 - 12). The fields containing the invalid values are surrounded by a red frame.

The dialog box must be acknowledged by clicking on

first. Thereafter, the entries can be

corrected and confirmed by clicking on

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.

Changing a pin model

●

Select the desired pin from the display area by double-clicking.

The window for editing the data for the pin model is opened (see Fig. 6.1.8).

●

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

If the values entered are valid, the window will be closed.

6 Product / Package Form User’s Manual Line Computer UNIX

6.1 Package Form Editor Software Version 402.xx Edition 03/97

6 - 22

6.1.2.8 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. 6.1.11) is opened. Only after a grid group has

been defined can the window for the description of a ball model be opened (siehe Fig. 6.1.12).

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

radius tolerance

[µ

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

grid height [

position of grid group center

(x and y-offsets) relative to the

component center

[µ

(each grid group is symmetric

to the group center).