Stats

  • Replies 4
  • Subscribers 159
  • Views 13612
  • Members are here 0
More Content

axlAirGap pin soldermask to via etch measure

Ejlersen

Hi

I've been working with the axlAirGap function to find the airgap between a pins soldermask and a vias etch.

However the different options either give me

soldermask to soldermask or etch to etch 

Amongst others things I've tried 

axlAirGap(oid did "PIN/SOLDERMASK_TOP" 'enhanced)
axlAirGap(oid did "PIN/SOLDERMASK_TOP" 'anyLayer)

where oid is the pin dbid and did is the via dbid

Anyone have a solution to this or how it can be done?

Currently the only way I can see around this problem is to create a duplicate of the via form on another layer and measure the airgap there. I'm well aware that soldermask to pad and cline does this check - but I need it for another purpose.

Thanks in advance

Best regards

Ole

Parents

  • Hi Ole,

    I think that there are a number of ways of doing this. None are completely trivial.

    1/ Use axlPadStackEdit copy the via etch "shape" to the via soldermask layer. Wrap this in an axlTransaction and roll back after all your measures.

    2/ Create a temporary shape, the same size as the via etch pad, on the soldermask layer.

    3/ Do the measuring maths yourself. The axlAirGap command should be able to be emulated relatively easily for simple shapes like circles and rectangles.

    Cheers,
    Dave 

Reply

  • Hi Ole,

    I think that there are a number of ways of doing this. None are completely trivial.

    1/ Use axlPadStackEdit copy the via etch "shape" to the via soldermask layer. Wrap this in an axlTransaction and roll back after all your measures.

    2/ Create a temporary shape, the same size as the via etch pad, on the soldermask layer.

    3/ Do the measuring maths yourself. The axlAirGap command should be able to be emulated relatively easily for simple shapes like circles and rectangles.

    Cheers,
    Dave 

Children
No Data
Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.