Re: Build contact nodes

[Steven Rubin]

At 03:47 PM 3/11/2005, you wrote:
> I'm trying to build a new technology in Electric 7.00. For contact nodes, 
> I specify metal layers and via layer as boxes for main example and other 
> examples. Do the size of those boxes, or ratio of sizes between those 
> boxes has effects on such nodes used in actual layout? If the size 
> matters, do I have to keep the size/ratio for all examples in addition to 
> the main example?

The technology editor expects to see four examples of a contact node.  The 
smallest of the four becomes the default size contact.  The larger ones 
help define rules for stretching in X, Y, and both X&Y.  Since the cells 
that define such nodes are done in the Artwork technology, the size will 
match the final node, but adjusted for the difference in 
technologies.  Thus, if the contact is 4x4 lambda (in Artwork grid units) 
then the layout will be 4x4 lambda (in grid units of the target technology).

   -Steven Rubin