Octopart is Joining Altium - Octopart Blog

Octopart is Joining Altium - Octopart Blog:

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Convert Files

Converting files is a bit off the main topic for this blog, however I have found these converters to be very useful.

Online ICO converter  - 256 Pixels (32 Bit Color) for High Resolution Icons.

DXF to DWG CloudConvert

Zamzar Convert your PDF file to DXF now - Free, Simple and Online

Zamzar - video converter, audio converter, image converter, eBook converter

PDF to DXF
PDF to Excel

Tip: Copy the PDF to a Google drive (or any gmail account), open it, then print to PDF using your local PDF print driver.  The new PDF file will have all restrictions removed.

Free Online PDF to Excel Converter  

Free conversion services that does precisely that: it turns non-editable PDF files into Excel spreadsheets that are easy to work with.

Convert Files - Free

Archive File Conversions

7Z to RAR, TAR, ZIP, TGZ, TAR.GZ

GZ to RAR, TAR, ZIP, TGZ, TAR.GZ, 7Z

RAR to TAR, ZIP, TGZ, TAR.GZ

TAR to RAR, ZIP, TGZ, TAR.GZ

TGZ to TAR, RAR, ZIP

TAR.GZ to TAR, RAR, ZIP

ZIP to TAR, RAR, TGZ, TAR.GZ

That's It !

PCB Design Rules

Syntax's for Clearance Rules

InPolygon

InNamedPolygon('L3 - 3V3')

(ObjectKind = 'Poly') And (Name like '*L05_GND*')

(OnLayer('L1 TOP') and InPolygon) 

(OnLayer('L1 - TOP'))

Not( OnLayer('L8 3V3/RF') OR OnLayer('L9 5V')) 

InNetClass('CPW')

InNet('RF_PORT') AND InComponent('X100') 

InNet('26MHz')

(InNet('RF_PORT') AND OnLayer('L1 - TOP'))

HasPad('J1400-1') OR HasPad('J1001-1')

InComponent('D1200')

Not (InComponent('TH100') Or InComponent('TH101')) 

(ObjectKind = '3D Body') And (Identifier = 'SOM') 

(AsMils(HoleDiameter) = 130)

(AsMils(HoleDiameter) >= 8) 

WithinRoom('DDR3_ROOM')

OnLayer('L1 TOP') or OnLayer('L16 BOT')      

IsPad

IsVia

Hole to Hole Clearance Rules


Thru-Hole Pin

IsThruPin
InPolygon
8mil

NPTH Rules

((HoleDiameter >= PadXSize_AllLayers ) OR (HoleDiameter >= PadYSize_AllLayers))

(HoleDiameter > 0) And (PadIsPlated = 'False')   


Routing Rules

Width

InNetClass('DDR_AC') or InNetClass('DDR_DQ') 

(ObjectKind = 'Track') And (Layer = 'L11-SIG') and InNetClass('MCP_ADDR[7..30]')


Differential Pair Rules

InNetClass('diff_80') 

InNetClass('diff_100') AND NOT withinroom('FPGA_ROOM') 


Component Clearance Rules

OnMechanical

InComponent('C1911') 

NOT InComponent('R1900') and NOT InComponent('C1904')       

InComponentClass ('Class_Name')


Hole to Hole Rules

InNet('GND') 

to 

InNet('GND')

 

Slots

HoleType = 'Slot'  


Net Antennae Rules

To Allow a Net Antennae

NOT (InNet('DXN_0_N') OR InNet('DXP_0_P')) 

InNet('NetF1100_1') and IsViolation   


Pads

InPadClass('Mtg_Holes')

(ObjectKind = 'Pad') And (Component = 'U2')


Soldermask Rules

Tent (Cover) Vias

isVia and AsMils (HoleSize < 15) 

NPTH

(HoleDiameter > 0) And (PadIsPlated = 'False')  
Check Solder Mask from Hole Edge   
5mil


SMD Pads to Thru-Hole Solder

Find Vias In Pads and use Via soldermask encroachment.

Steps: 

Identify Vias in Pads using a DRC check. 

IsPad 

IsVia 

AnyNet

Minimum clearance 3mils

Select Components and Unlock Primitives.

Use PCB Filter isVia and HasViolations

Set selected Vias to unique hole size i.e. 8,01 or 10.1mils and use rule based soldermask.

Delete or disable the temporary DRC to find the Vias in Pads

Create a Solder mask expansion Rule for the unique drill hole sized vias.

IsVia AND (AsMils(HoleDiameter) = 8.01)  

Check Solder Mask From The Hole Edge

Set expansion i.e. 3 or 4 mils

Done !

That's it !