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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.
DFE
DFE Items
Component
Component Position
The Component Position DFE rule checks whether a design follows a component placement guideline.

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
    - Input Setup
    - Object Group Setting
      Group the same type of objects into the same group.
    - DFE Items
      - High Speed
      - Differential Pair Net
      - Net
      - Power
      - Filter
      - Component
        Approach Pair Comp
        Component Direction
        This rule checks the placement angle of two passive components like power inductor.
        Component Position
        The Component Position DFE rule checks whether a design follows a component placement guideline.
        Component Shield
        This DFE rule checks for the component ground shielding status.
        Comp-Connected Circuit
        This rule checks for the validity of circuit usage and whether the routing length and clearance from driver pins are within the specified distance.
        Keep Off Pair Comp
        This DFE rules checks for those components that are not placed far enough.
        NC Pin
        The NC Pin DFE rule checks for the NC pin connectivity.
        Pin Connected Width
        This rule checks that total trace width is wider than the requirement if there is branch.
        Polarity
        This DFE rule checks for the connectivity of capacitors or diodes that have polarities.
      - Board
    - DFE Environment
      View DFE Environment setting methods.
    - Result
  - DFE+
    PollEx DFE+ is a fully automated SI analysis tool.
  - DFM
    PollEx DFM is a board level manufacturability checking software.
  - 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.

Component Position

The Component Position DFE rule checks whether a design follows a component placement guideline.

While component is placed, it is necessary to EMI and ESD problems. For example, high speed signal generating components are placed at the center of board and they will affect other parts of the board. In other cases, if components that are weak against ESD problem are located near the board contour line and shocked by other outside sources, it causes more serious problems. Because of those reasons, component keep-out region is needed early in the design stage.

Item: Enter item name.
Comp: Select a target component group.
In/Out: Select a check area type - inner or outer side from the reference area set in item ④.
- In: If the component is inside the defined area, it reports as passed.
- Out: If the component is inside the defined area, it reports as failed.
Area: Select a reference location check region.
- Center/Left/Right/Top/Bottom/LeftTop/LeftBottom/RightTop/RightBottom/Edge
Area Size (%): Assign a ratio criteria as a percentage of PCB length.

Result

Check whether there is a target component in the inner or outer region.
For the user-defined region, change its display into polygon with blue outlines. The component is highlighted green.
Figure 1.