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PollEx User Guides
Discover PollEx functionality with comprehensive user guides.
Verification User Guides
This section contains the user guides for the following tools: DFA, DFE, DFE+, DFM, and Logic DFE.
DFM
PollEx DFM is a board level manufacturability checking software.
Check Item Category
Etc.
LED
PollEx DFM searches for resisters near Light Emitting Diode (LED) components.

Welcome
What's New
View new features for PollEx 2024.1.
Get Started
Learn the basics and discover the workspace.
PollEx Tutorials
Discover PollEx functionality with interactive tutorials.
PollEx User Guides
Discover PollEx functionality with comprehensive user guides.
- Manufacture User Guides
  This section contains the user guides for the following tools: Block JIG Generator, Compare GDSII, Gerber to PCB, Make Board Paneling, Metal Mask Manager, Mounting Data Extractor, Mounting Emulator, Router-Machine JIG Generator, Solder Quantity Calculator, Soldering Pallet, Test Point Location Generator, and Underfill.
- Modeler User Guides
  This section contains the user guides for the following tools: BOM, CAM, Component Arrangement Plan, CP, Golden Sample, Logic, PCB, Redmark+, and Worksheet Planner.
- Solver User Guides
  This section contains the user guides for the following tools: PI, SI, SI Explorer, and Thermal.
- Verification User Guides
  This section contains the user guides for the following tools: DFA, DFE, DFE+, DFM, and Logic DFE.
  - DFA
    PollEx DFA is an assembly status checking toolset for PCB design based on 3D package library.
  - DFE
  - DFE+
    PollEx DFE+ is a fully automated SI analysis tool.
  - DFM
    PollEx DFM is a board level manufacturability checking software.
    - Start DFM
      From the menu bar, click Option > DFM > Input after reading the design file to make a DFM input file.
    - Component Classification
    - Check Item Category
      - Board
      - Component
      - Drill Size
      - Etc.
        Dome Sheet Guide Hole
        Check the dome sheet guide hole specification, clearance with component, and the number of holes.
        FPC Dummy Pad
        Check the specification for Flexible Printed Circuit (FPC) connector pads.
        Key Pad
        Check the key pad design and via usages.
        LED
        PollEx DFM searches for resisters near Light Emitting Diode (LED) components.
        Symmetry Arrangement of Component
        Verifies the position of the component and that the net connected to the pin is designed symmetrically, because this design combines two PCBs with the symmetrically placed components in each design.
        TCP Align Hole
        Check the rule of align hole usage.
        TCP Bonding Mark
        Check the rule of TCP bonding mark design.
        TCP Dummy Pad
        TCP component is tape carrier package. TCP dummy pads are designed between TCP components. It could be designed with footprint or can be replaced with routing patterns.
        TCP Pad
        TCP component is tape carrier package. Check the specification of TCP component pad (pin).
        Text Existence
        Check existence of specified text string in the design.
        Undefined Component
        This checking item finds components that do not belong to Component Class, Group, and Measure Base in the PollEx DFM Rule settings.
      - FPCB
        FPCB is excellent for development of electronic components as electronic appliances are becoming miniaturized and lightweight.
      - Ground Wall
        Check the clearance for an area affected by ground wall.
      - Package
      - PAD
      - Pattern
      - Placement
      - Test Point
        Verify if the clearance between test points and other objects follow specifications and if the test points contain text.
      - Test Point2
        Analyze the clearance between a test point and each component on a board.
      - Tooling
      - Underfill
        Find and examine underfill areas in BGA-type components.
    - Result
    - Lock Input Setup
      Lock the DFM input rule file (*.DFMI) to prevent any modifications from others.
  - Logic DFE
    PollEx Logic DFE is a toolset that checks electrical validity and standardizing of schematic design.
  - Technical Cleanliness
    PollEx Technical Cleanliness (TC) is an optional module of the PollEx PCB and a reliability analysis tool set for hazardous areas on a PCB design, using its micro particles.
- UPE User Guides
  This section contains the PollEx UPE user guide.
PollEx Installation Guide
Instruction to install PollEx 2024.1.
Character String Search Rule
Definition for meta character using in making sentence for searching option.

LED

PollEx DFM searches for resisters near Light Emitting Diode (LED) components.

A LED emits light when an electric current pass through it. The simplest circuit to power a LED is a voltage source with a resistor and a LED in series. Such a resistor is often called a ballast resistor. The ballast resistor is used to limit the current through the LED and to prevent burns.

The LED dialog contains the following sections:

LED Component Definition: Specify the LED target component that should be placed with a resister in one terminal.
Figure 1.
- Target Component Selection: Set the LED component from the component list.
Resistor Component Definition
- Resistor Component Selection: Set the resistor component from the component list.