Silk Screen Checks

• Silk Screen Checks
  • Open Silk Screen Checks
  • Parameters
    • Layer
    • Spacing
    • Test list
      • SM clearance
      • SMD clearance
      • Pad clearance
      • Hole clearance
      • Rout clearance
      • Line width
      • Copper coverage
    • Apply to
    • Use Compensated Rout

  • Set Range
    • SM Clearance
      • SM Clearance
    • SMD Clearance
      • SMD Clearance
    • Pad Clearance
      • PTH Pads Clearance
      • Via Pads Clearance
      • NPTH Pads Clearance
      • Undrilled Pads Clearance
    • Hole Clearance
      • NPTH Clearance
      • PTH Clearance
      • Via Clearance
    • Rout Clearance
      • Rout Clearance
    • Line Width
      • Line Width
      • Arc Width
      • Pad Width
      • Surface Width
      • Zero Line Width
      • Shaved Line
      • Shaved Arc
      • Shaved Pad
      • Shaved Surface
      • Inconsistent Line Width
      • Inconsistent Arc Width
      • Inconsistent Surface Width
    • Text Size
      • Text Width
      • Text Height
    • Text Spacing
      • SS to SS Spacing
      • Text Spacing
    • Copper Coverage
      • SS Over Text
      • SS Over Channel
        

  • Advance
    • General
      • Report dist of SS Embedded in other layer as 0
      • Ignore features with attr
      • Use Mask layer
    • SM Clearance
      • Reliability margin for SM 2 SS spacing
      • Report dist of SS Included in SM as 0
    • SMD Clearance
      • Reliability margin for SMD 2 SS spacing
    • Pad Clearance
      • Reliability margin for PTH PAD 2_SS spacing
    • Hole Clearance
      • Reliability margin for NPTH 2 SS spacing
      • Reliability margin for PTH 2 SS spacing
      • Reliability margin for Via 2 SS spacing
      • Check against drill
      • Report covered hole only
    • Rout Clearance
      • Reliability margin for Rout 2 SS spacing
    • Line Width
      • Max line width
      • Min line length
      • Min Line length/width ratio
      • Report arcs as lines
      • Report pads as lines
      • Report shaved surface width
    • Copper Coverage
      • Max channel width
        

  • Run Silk Screen Checks
  • View Analysis Report
  • Result Viewer Form
    • Result Viewer Form Introduction
    • View Analysis Report
    • Result Viewer Form

Silk Screen Checks

• Silk Screen Checks analyzes silk screen layers for design errors and creates a report to list all the findings
• Silk Screen Checks only provide analysis check, does not change layout content

Open Silk Screen Checks

• In the Graphic Editor screen, select "Analysis" ，then select "Silk Screen Checks" 。( Command：chklist_single )

Parameters

• Parameters values can be changed in the respective fields and saved in ERF
• All values and settings shown in this guide is by default
• Parameters interface are shown below ：

Parameters：

Layer

• Select layer to run analysis

Spacing

• Set analysis search range

Test list

• Availalbe test items： SM Clearance 、 SMD Clearance 、 Pad Clearance 、 Hole Clearance 、 Rout Clearance 、 Line Width ， Copper Coverage 。

• SM Clearance

  • Check spacing for silk screen layer features to solder mask layer features

• SMD Clearance

  • Check spacing for silk screen layer features to SMD pads

• Pad Clearance

  • Check spacing for silk screen layer features to outter layer pads

• Hole Clearance

  • Check spacing for silk screen layer features to drill holes

• Rout Clearance

  • Check spacing for silk screen layer features to rout layer features

• Line Width

  • Detect line width design errors in silk screen layer
  • Use the following parameter settings: Max line width , Min line length Min Line length/width ratio

• Copper Coverage

  • Detect if text is located on top of outer layer copper surface edge, use SS Over Channel to set spacing

Apply to

• All：analyze all features in the layer
• Selected：Only analyze selected feature

Use Compensated Rout

• Choose analysis method for Rout Clearance ：
  • Yes:Use compensated rout for analysis
  • No:Use original rout for analysis
  • Skeleton:use rout skeleton for analysis

Set Range

Command：chklist_ erf_range

• Set range value for each analysis check items
• There are three types of analysis result: Critical, Warning or Safe
• Default setting is avaialble for all parameters
• Value can be changed in respective fields, and saved in ERF
• See below picture for the Range interface：

Range ：

SM Clearance

SM Clearance

• Set analysis result range for spacing between silk screen feature and solder mask features

SMD Clearance

SMD Clearance

• Analysis results for spacing between silk screen feature and SMD pads

Pads Clearance

PTH Pads Clearance

• Set analysis result range for spacing between silk screen feature and PTH pads

Via Pads Clearance

• Set analysis result range for spacing between silk screen feature and VIA pads

NPTH Pads Clearance

• Set analysis result range for spacing between silk screen feature and NPTH pads

Undrilled Pads Clearance

• Set analysis result range for spacing between silk screen feature and undrilled pads

Hole Clearance

NPTH Clearance

• Set analysis result range for spacing between silk screen feature and NPTH holes

PTH Clearance

• Set analysis result range for spacing between silk screen feature and PTH holes

Via Clearance

• Set analysis result range for spacing between silk screen feature and VIA holes

Rout Clearance

Rout Clearance

• Set analysis result range for silk screen feature and rout layer feature

Line Width

Line Width

• Set analysis result range for silk screen line width

Arc Width

• Set analysis result range for arc feature width, if Report arcs as lines set to yes , the result for this category will be changed to Line Width 。

Pad Width

• Set analysis result range for arc feature width, if Report pads as lines set to yes , the result for this category will be changed to Line Width 。

Surface Width

• Set analysis result range for Surface width

Zero Line Width

• Set analysis result range for line with 0 width

Shaved Line

• Set analysis result range for line feature overlapping with negative line feature

Shaved Arc

• Set analysis result range for arc feature overlapping with negative line feature, if Report arcs as lines set to yes , the result for this category will be changed to Shaved Line 。

Shaved Pad

• Set analysis result range for pad feature overlapping with negative line feature, if Report pads as lines set to yes , the result for this category will be changed to Shaved Line 。

Shaved Surface

• Set analysis result range for surface feature overlapping with negative line feature，set Report shaved surface width to yes to include this category in the analysis

Inconsistent Line Width

• Set analysis result range for inconsistent line width

Inconsistent Arc Width

• Set analysis result range for inconsistent line width, if Report arcs as lines set to yes , the result for this category will be changed to Inconsistent Line Width 。

Inconsistent Surface Width

• Set analysis result range for inconsistent surface width

Text Size

Text Width

• Set analysis result range for text width, barcode text is included.

Text Height

• Set analysis result range for text width, barcode text is included.

Text Spacing

SS to SS Spacing

• Set analysis result range for silk screen feature spacing

Text Spacing

• To be continued.

Copper Coverage

SS Over Text

• Set analysis result range for silk screen feature overlaps with outer layer text features （feature with .nomenclature attribute inlcuded）

SS Over Channel

• Set analysis result range for silk screen feature overlaps with copper surface edge, see Max channel width for copper surface edge settings

Advance

• Parameters values can be changed in the respective fields and saved in ERF
• All values and settings shown in the examples is by default
• Parameters interface are shown below ：

Advance：

General

Report dist of SS Embedded in other layer as 0

• Set Hole Clearance and Rout Clearance result display method
  • Yes：Analysis result shows a point on the drill or rout
  • No：Analysis result shows distance

Ignore features with attr

• Set to ignore features with input attribute in analysis

Use Mask layer

• Set to use mask layer or not

SM Clearance

Reliability margin for SM_2_SS spacing

• Set Reliability Margin for solder mask and silk screen layer feature

Report dist of SS Included in SM as 0

• Set SM Clearance result display
  • Yes：Analysis result shows a point on the solder mask feature
  • No：Analysis result shows distance

SMD Clearance

Reliability margin for SMD_2_SS spacing

• Set Reliability Margin for SMD pad and silk screen layer feature

Pad Clearance

Reliability margin for PTH_PAD_2_SS spacing

• Set Reliability Margin for PTH pad and silk screen layer feature

Hole Clearance

Reliability margin for NPTH_2_SS spacing

• Set Reliability Margin for NPTH hole and silk screen layer feature

Reliability margin for PTH_2_SS spacing

• Set Reliability Margin for PTH hole and silk screen layer feature

Reliability margin for Via_2_SS spacing

• Set Reliability Margin for VIA hole and silk screen layer feature

Check against drill

• Set Hole Clearance to detect drill with solder mask opening

Report covered hole only

• Set Hole Clearance to detect drill hole covered by silk screen layer features

Rout Clearance

Reliability margin for Rout_2_SS spacing

• Set Reliability Margin for rout layer feature and silk screen layer feature

Line Width

Max line width

• Set maximum line width, line with width lower than this value will be detected

Min line length

• Set minimum line length, line with length over this value will be detected

Min Line length/width ratio

• Set minimum line length/width ratio, line with ratio higher than this value will be detected

Report arcs as lines

• Set arc feature to be categorized as line feature for analysis

Report pads as lines

• Set pad feature to be categorized as line feature for analysis

Report shaved surface width

• option to include copper surface overlaps with negative line feature in analysis

Copper Coverage

Max channel width

• Set max spacing for outter layer copper surface

Run Silk Screen Checks

• Run Silk Screen Checks Command：chklist_run
• Three buttons in the lower interface, each button runs the module at different area range
  • Global ：Analyze all features in the layer ( Command：chklist_cupd )
  • Screen ：Analyze all features in the screen display area( Command：chklist_cupd )
  • Profile ：Analyze all features in profile frame( Command：chklist_cupd )

View Analysis Report

• Click the " ＋ " button on the lower right to view analysis report ( Command：chklist_ res_show )

• Result Viewer Form will be opened after click on the " ＋ " button

Result Viewer Form

• In Result Viewer Form, Severity report will be displayed based on selected layers

Result Viewer Form Introduction

：Display analysis result by selected layers

• Click None to unselect all layers in the list
• Click All to select all layers in the list

：

• Select Replace Layer to view all results in the layer list
• Select Keep Layer to view single layer results

：Number of detected error types

：Back to the first error entry

：View previous error entry

：View next error entry

：Jump to the last error entry

：Error entry index number

：Choose method to view error entry in the layout：

• Auto Zoom: zoom in error area when selecting the error entry
• Pan Only: move screen to center on the error area
• Popview: open popview on the error area
• None: highlight error area only

：Remove reference mark

：Add reference mark

：Remove error entry marked with reference mark

：Open Result Report

：Open Result Histogram

：Error entry severity levels, red color is the most critical errors

：Display all error area in the layout

View Detected Error in the Layout

• In Result Viewer Form, click " <-- " or " --> " to view each error entry in the layout (See example below)

• Click "Show All" will highlight all the error spots in the layout(See example below)

View Result Histogram for Analysis

• Select an error entry, click the bar icon on lower right to open Result Histogram

Command：chklist_ hist_close

Command：chklist_ hist_show

• Example of Result Histogram ：