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We have placed the devices using Virtuoso layout XL.
The devices will have names (for ex: |M1.1 or |R12 etc...)
We want to increase/ decrease the size of these texts which is included in text.
Can anyone please suggest me how we can do this.
Hi SubhashWould you please explain what you meant by "size of these texts which is included in text"? : ) Please also state the version of Virtuoso which you are using.Thanks|Quek
In reply to Quek:
I am using Cadence 5141 version.
When we instantiate a device using Virtuoso XLthe device will get the corresponding name from Schematic.
And that will lookk like : "|M12.2" or "|C1" or "|R44<7>"
These will be displayed in text layer but we cannot select them or edit them, but if we select the property of the device these instance names will be taken from a field called "Name:"
And we can only edit the name but we cannot change the size of that displayed text.
Hope you get my requirement.
In reply to MaximSubhash:
Hi SubhashThanks for the clarification. Unfortunately, I don't think that there is a way to change the font size of the instance name.Best regardsQuek
I'm wondering whether Subhash is talking about the same thing. You're talking about the text that is shown on an unexpanded layout instance - where the text size will be such that it fits in the bounding box of the cell. Some PDKs have their devices such that they have a label on them showing the instance name (an NLPLabel or ILLabel type evaluated label). If that's the case, then the text size is a function of the PDK - so unless the PDK provides an option to change the text size, there's no control over this.
Potentially you could write some SKILL code to add a textDisplay over each instance and "attach" it - so that it moves with the instance - in which case the label (or rather textDisplay) could be whatever size you want (hint, using dbCreateTextDisplay() to create the label, and maybe leAttachFig to attach it).
In reply to Andrew Beckett:
Hi AndrewThat's interesting. : ) Perhaps Subhash can clarify the issue again.Best regardsQuek
Hi Andrew and Quek,
Thanks for your support.
Yes as you mentioned we can use the dbCreateTextDisplay() but we already have the instance name in the device.
Please check the attached file.
|M0.1 is bigger and visible because its length is long and the |M1 is small because it length is smaller.
I understand it might be a function linked with PDK. Just trying to explore if we can increae this itself rather than having another text on these devices.
Hope this would give better idea.
From the picture, this is something that the pcell itself is doing, and unless the PDK provides some way to control this (e.g. a parameter on the instance, or a global setting), then there's not much you can do. You should contact the PDK provider to ask them, since it's their code...