Guard Ring PCell

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vbhupendra

Joined: 11 May 2005
Posts: 238
Helped: 6
Location: GOA, INDIA

13 Nov 2006 13:06 Guard Ring PCell

How to design PCell for Guard Ring ?

road_0506

Joined: 23 Jun 2006
Posts: 72
Helped: 7
Location: Phils

13 Nov 2006 15:27 Re: Guard Ring PCell

hello.. what do u really mean?

gharuda

Joined: 30 May 2006
Posts: 59
Helped: 5

15 Nov 2006 13:39 Re: Guard Ring PCell

does the question is like this

how to design gaurd rings for pcell

truebs

Joined: 21 Jan 2005
Posts: 322
Helped: 19
Location: Asia

16 Nov 2006 7:12 Re: Guard Ring PCell

I think Pcell for Guard rings is not a good idea (although it can be created the conventional way we create the pcells for transistors/resistors ) .
As there is a seperate section available in techfile, which can generate Guard rings when provided with some basic parameters. ( lxRule section). This would be quite simple and effective than creating a pcell for guardrings.

Also , when we create a pcell, the dimensions needs to be specified for a particular instance, and it is not always easy estimate the guard ring dimensions , while lxrule section allows us to create a guard ring just like a path or routing way.