YesAX V3.1.2 - Software User Manual.pdf - 第73页

3D Recipe Creatio n 7-3 The Select Sides dialog will display twice to determine the sides. The first prompt asks if the board is a top side and the second prompt asks if the board is a bottom side. For a top side board, …

7-2 3D Recipe Creation

7.2 CAD Conversion Utilities

7.2.1 Convert5DX Utility

The Convert5DX Utility is a file conversion utility that extracts board information from NDF

files (Neutral Data Files and generates the necessary YCD and YPC files for YesAX software

recipe generation.

The NDF files

As a necessary step in creating inspection programs for Agilent 5DX machines, you are asked to

create a number of NDF files (Neutral Data File) which describe the board in great detail. The

NDF files are text files with different NDF files describing different aspects of the board. The

Board.ndf files contain part information useful for generating the YCD files and the

LandPat.ndf file contains the Pin information which is useful for generating the YPC file.

Here is the main user interface of the Convert5DX program:

Select the input folder where the directory structure for the 5DX NDF files is located.

Select the output folder where all the YCD and YPC files will be created.

After the folders are selected, press the “Convert” button to start the conversion process.

3D Recipe Creation 7-3

The Select Sides dialog will display twice to determine the sides.

The first prompt asks if the board is a top side and the second prompt asks if the board is a

bottom side. For a top side board, the correct responses would be “Yes” on the first prompt and

“No” on the other prompt.

5DX names the board side different from X3. Using X3 convention you may say 5DX usually

inspects board up-side-down. The term “Secondary Side” in 5DX usually refers to the top side

for X3. The only way to be certain is to try it. Since the conversion process takes no more than a

few minutes, trying out the combination will take no more than 10 minutes. The side convention

for each customer site is usually consistent, so once you figure it out, the next board should be

the same.

The conversion process generates a total of 4 YCD files and 2 YPC files.

BoardName_Full_T.YCD and BoardName_Full_B.YCD are YCD files for top and bottom

side of the board with all the parts in them.

BoardName_BGA_T.YCD and BoardName_BGA_B.YCD are YCD files for top and bottom

side with only BGA parts plus the parts needed for CAD alignment (parts near the corners of the

boards). Copy and paste additional parts from the BoardName_Full_x.YCD file into the

BoardName_BGA_x.YCD if more parts are needed to be imported.

For best utilization of the X3’s 3D inspection capability, Nordson YESTECH recommends using

it only to inspect BGA and Through Connectors. Other parts are more efficiently inspected by

AOI machines.

The two YPC files are BoardName.YPC and BoardName_Sorted.YPC. These two files may

be identical for a lot of the boards where the entries for pin in the 5DX LANDPAT.NDF file are

sorted by pin name. Always use the sorted version for pin CAD import on the YesAX software.

7-4 3D Recipe Creation

7.2.2 ConvertFM Utility

FabMaster is a common CAD format. It contains detailed information of the board. The

ConvertFM program reads the FabMaster text file and generates .YCD and .YPC files. The user

interface is simple, as shown below.

The conversion process for the ConvertFM utility is the same as for the Convert5DX utility.

ConvertFM generates a total of 4 YCD files and 2 YPC files.

BoardName_Full_T.YCD and BoardName_Full_B.YCD are YCD files for top and bottom

side of the board with all the parts in them.

BoardName_BGA_T.YCD and BoardName_BGA_B.YCD are YCD files for top and bottom

side with only BGA parts plus the parts needed for CAD alignment (parts near the corners of the

boards). Copy and paste additional parts from the BoardName_Full_x.YCD file into the

BoardName_BGA_x.YCD if more parts are needed to be imported.

The two YPC files are BoardName.YPC and BoardName_Sorted.YPC.

7.2.3 ConvertGenCAD Utility

GenCAD is another common generic CAD format. A GenCAD .cad file contains detailed

information of the board. The ConvertGenCAD program reads the GenCAD .cad file and

generates .YCD and .YPC files. The user interface is simple and very similar to other conversion

utilities.