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Other CAD Tools >> Physical Verification, Extraction and Analysis >> Creating Calibreview in Virtuosuo (IC5141)
https://designers-guide.org/forum/YaBB.pl?num=1401632259

Message started by samiran on Jun 1^st, 2014, 7:17am

Title: Creating Calibreview in Virtuosuo (IC5141)
Post by samiran on Jun 1^st, 2014, 7:17am

Hi All,

I am using Cadence's Virtuoso (IC5141) for schematic and layout editing. and Mentor's Calibre Interactive for physical verification. After I got the layout LVS and DRC clean, I used Calibre PEX to extract RC parasitic. (Please see attached screenshots of different setup window of Calibre related to PEX). The tool is extracting the parasitic (as shown the list of extracted parasitic), however no calibreview is created. Please help me find the out the root-cause of this problem. Please look at the error log from CIW window.

Code:

// CalibreView Settings:
// Output Library: TestLib
// Schematic Library: TestLib
// Cellmap File: ./calview.cellmap
// Calibre View Name: calibre
// Calibre View Type: maskLayout
// Magnify Devices by: 1.000000
// Magnify Parasitics by: 1.000000
// Create Terminals: Create all terminals
// Reset Properties: ("m=1")
//
NOTE: Creating CalibreView for cell inverter ...
(n18
(ts018_scl_prim nmos_18 symbol)
(
(b B)
(d D)
(g G)
(s S)
)
)
(p18
(ts018_scl_prim pmos_18 symbol)
(
(b B)
(d D)
(g G)
(s S)
)
)
Device pin-count should match cellview terminal count!
Cell Name field cannot be blank.
Cell Name field cannot be blank.
ERROR: Could not create instances of parasitic device "c": Cell mapping information not specified.
ERROR: Could not create instances of parasitic device "r": Cell mapping information not specified.
*WARNING* 'xSnapSpacing' is not a multiple of 'mfgGridResolution' (0.005).
*WARNING* 'ySnapSpacing' is not a multiple of 'mfgGridResolution' (0.005).
Calibre View generation completed with 0 WARNINGs and 2 ERRORs.
Please consult the CIW transcript for messages.
*WARNING* 'xSnapSpacing' is not a multiple of 'mfgGridResolution' (0.005).
*WARNING* 'ySnapSpacing' is not a multiple of 'mfgGridResolution' (0.005).

Title: Re: Creating Calibreview in Virtuosuo (IC5141)
Post by Jacki on Jun 2^nd, 2014, 11:20am

Hi,

I see your log file, it seems you have two problems. One is the cellmap, usually the cellmap file is provided by the foundry, you don't need to add it by yourself except the parasitic resistor and capacitor.
Second is your grid setting in the layout. Each designkit has its own x,y snap space. when you start to draw the layout, the default snap space is already the minimum one, you cannot change it to a smaller value, or else you have the grid problem.
Hope it can help you.
Jacki