Sense gate metal1 in pcell(lowest hierarchy) and draw metal1 path to connect all gates in a row of 10 pcells in current hierarchy(1 hierarchy above than the lowest hierarchy).

Often pcells have the ability to create structures like this themselves, by putting all the gates in a single nfet instance and turning on some parameter to connect the gates together.  Consult your pcell documentation to see what features are available!

Failing that, I think VCR or Virtuoso-GXL has some kind of fancy auto-routing feature that can do this....

Otherwise, you could code this up yourself with dbShapeQuery, dbGetHierPathTransform, dbTransformPoint/dbTranformBBox, and dbCreatePath.

In addition to what Tom said you might try looking at the rod* SKILL functions - each instance has a rod ID and you may be able to query shapes (like pins) inside of the PCell.  By the way, if you couldn't descend or see into the PCell you wouldn't be able to use it, so I assume you are talking about edit access. But you don't need edit access to be able to 'see' the shapes inside the PCell.  Using ROD would make things much easier because then you can use a function like rodCreatePath() to create a path from one handle (a point on the pin shape you identified from one instance) to another handle (ditto).

Hopefully this additional hint may help you.

Best regards,

Lawrence.

How to know get the coordinates(coordinates according to my cellview) of gate M1 in my nfet p-cell, i am not able to do that. Is there any way of doing that?  Otherwise i have to take ROD's's handle's coordinates and add some calculated distance to gate's M1 in um and add to the ROD's handle coordinates. Can i do that? But then that wont be a general code for every which would work for every nfet because of different number of fins.   I am sorry to ask you questions, its only been 3 days i have started with SKILL.  

Also, i tried this code for some other purpose: I selected 2 instances,

a=geGetSelSet()~>xy                    ; Output is something like this: ((0.635 0.506) (2.1665 0.5975)), The list's each element is in pairs for 2 selected instances, i want to add .038 to them in next line.
b=mapcar('plus 'a '((0.038 0.038) (0.038 0.038)))
dbCreatePath(geGetEditCellView() "M2" b 0.024)

Bold line throws me this error : *Error* mapcar: argument #2 should be a list (type template = "ul") - a

Note that each element in this is in pairs. In this i want to increase the current xy coordinates of two instances with 0.038um. 

Please thrill me with your acumen. 

dbTransformPoint/dbTranformBBox: i could'nt find these in Cadence SKILL API Finder. 

I know how to use dbCreatePath. About the rest, how to use them? What do you mean by query? 

Hi,

the "a" should not be quoted on that line, you want it to evaluate to the content of the variable 'a' so remove the single quote.

However, back to the earlier question - the whole point of ROD is that it is Relative to the object(s) that you are working with. I don't have time to go through any examples right now but there are video and documentation and programming examples.

Hopefully this will help?

Best regards,

Lawrence.

そう、そう、SKILL学生さん、そのRODリンクをよく勉強して、すぐわかりますよ。

Hello, i am not a Japanese and don't understand Japanese. :) 

@skillUser This ain't working even if i put off the ' before a. : ( 

Not surprising that it doesn't work, because it would be attempting to add two lists. You have two lists of lists that need to be added - for that you'd have to do:

b=mapcar(lambda((p1 p2) mapcar('plus p1 p2)) a '((0.038 0.038) (0.038 0.038)))

Or simpler (since it's the same offset):

b=foreach(mapcar p1 a foreach(mapcar n1 p1 n1+0.038))

This form will work for a list of any number of points, and is probably a bit more transparent.

BTW, I did think about deleting Tom's Japanese post for being a non-English post, but I supposed (from sticking it through Google Translate) that it was an attempt at humour...

Regards,

Andrew.

Andrew Beckett said:

BTW, I did think about deleting Tom's Japanese post for being a non-English post, but I supposed (from sticking it through Google Translate) that it was an attempt at humour...

You know me so well... ^_^

SkillGakusei said:

Hello, i am not a Japanese and don't understand Japanese. :) 

So "gakusei" is actually Dutch or something?