NETEX-G Topics

Overview
• Introduction
• Applications
• User Interface
 
Inputs
• Gerber File Requirements
• Vias from Drill Data
• Layer Stackup
• Wire Bond Data
 
Assigning Nets and Nodes
• From ASCII Table
• From AIF
• From IPC356
• From GBRVU

Outputs
• ASCII Output
• Ansoft ANF
• Geometry Options
• GDSII
• DXF
 
Proximity Effect
• What is a Proximity Net?
• What is a Neighbor Net?
 
 
Extractions
• Extracting Nets
 
 
Netex Engine
• Program Flow
• Job File Syntax
• Command Line Syntax
• drl2gbr engine
• generating wire coords  

 

The NETEX JOB File

The NETEX engine manager reads an ascii file called a job file which we will refer to as the NJB file. This file contains most of the information that NETEX-G needs in order to compute and write out the nets.

How the Job File is Organized

There are multiple sections within the job file. Each section provides a certain type of information needed by program. The sections are marked with a beginning and a end of section keyword. Click on a section header to jump to the page describing that section.


B_LAYERS         <-- layer stackup [required]
E_LAYERS

B_LAYER_INPUT    <-- directory/filename of Gerber 
E_LAYER_INPUT        for each layer [required]

B_COMP_INPUT     <-- directory/filename of Gerber 
E_COMP_INPUT          representing components [optional]

B_AUX_PROPS     <-- Properties of Gerber representing additional
E_AUX_PROPS           files like solder mask, silk screen [optional]

B_AUXOUT     <-- directory/filename of Gerber representing additional
E_AUXOUT           files like solder mask, silk screen [optional]

B_WIREMODELS     <-- wire models and parameters [optional]
E_WIREMODELS

B_DIEINFO        <-- die outline and thickness [optional]
E_DIEINFO

B_WIRES          <-- wires segregated by tiers [optional]
E_WIRES

B_DRILL          <-- directory/file of gerber files 
E_DRILL              representing drills  [required]

B_NETS           <-- net labels with coordinate 
E_NETS               and stackup position [optional]

B_NODES          <-- port/pin labels with coordinate 
E_NODES              and stackup position [optional]

B_COMP_LIB       <-- description of each component 
E_COMP_LIB           similar to a library[optional]

B_EXPANSION      <-- expansion parameter for proximity 
E_EXPANSION          net computation [optional]

B_EXTRACT        <-- net extraction directives [optional]
E_EXTRACT

B_VIASIZE        <-- entities on via layer larger than this 
E_VIASIZE            value are ignored [optional]

B_SETTINGS       <-- conversion settings [required]
E_SETTINGS

Any lines within the job file that are not embedded in a valid section are ignored by the netex manager.




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