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Other CAD Tools >> Physical Verification, Extraction and Analysis >> POLY1 must be covered by N+ or P+ implant layer @Umc40lp using Calibre
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Message started by Ramakrishna RSSM on May 7th, 2017, 2:44am

Title: POLY1 must be covered by N+ or P+ implant layer @Umc40lp using Calibre
Post by Ramakrishna RSSM on May 7th, 2017, 2:44am

Hi All,

I'm working on Cadence IC616 with UMC40LP technology & using Calibre for DRC. I've encountered following DRC error.

POLY1 must be covered by N+ or P+ implant layer
Exclude AA_CELL_MARK, HR and MR layers

I've turned ON the following switches Since it's a block level Design.

DRC UNSELECT CHECK L2_DENSITY // AL_RDL density checking
DRC UNSELECT CHECK POLY_DENSITY // PO1 density checking
DRC UNSELECT CHECK DIFF_DENSITY // DIFFUSION density checking

Follow the attachment for more details.....

Please do let me know how to handle this DRC...

Thanks in advance...

Title: Re: POLY1 must be covered by N+ or P+ implant layer @Umc40lp using Calibre
Post by ajithkv on Jan 26th, 2024, 8:16am

The DRC violation is for the poly segment connecting PMOS and NMOS gates. You can add/ extend P+ and N+ implant layers between the MOS devices, such that they are touching. This will cover all poly layers by either P+ or N+ implant.

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