• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Custom IC Design
  3. What's wrong with my corner analysis

Stats

  • Locked Locked
  • Replies 0
  • Subscribers 125
  • Views 819
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

What's wrong with my corner analysis

ericliu
ericliu over 16 years ago

The problem was encountered in CADENCE 5.1.0 on a Solaris 10 machine. 

I used a tool provided by my foundry to write a corner file, *.dcf, which contained 15 different corner combinations among transistor and resistor models. Then the *.dcf was loaded into the Corner tool of Virtuoso Analog Design Environment.

However, I was only able to simulate a few corners before the simulation stopped unexpectedly. The CIW window directed me to look at the Output Log for information on the problem. However, there was no detailed information in the Output Log rather an incomplete  list of corners.
 
When I ran corner simulation again, CIW windown indicated that it had difficulty in clearing PSF directory at /Sim/***/spectre/schematic/psf.
 
Do any of you have an idea what went wrong here? I am more than 95% sure that the dcf file written by the foundry tool is working and I am not running out of memory during simulation. The CDS.log and spectre.out files are attached for your information. Please let me know if I should provide more information.

The CDS.log is shown below. 

 \a sevCornersTool('sevSession1)
\r t
\o    ... Beginning Corners runs (session spectre1) ...
\o    ... Generating and running corners ...
\o Delete psf data in /scratch/xliu/Sim/Igenerator_MV1_4mA/spectre/schematic/psf.
\o generate netlist...
\o function ansCdlCompPrim redefined
\o Loading seCore.cxt
\o function ansCdlCompPrim redefined
\o function ansCdlCompPrim redefined
\o Initializing the control file using cp:
\o     cp /apps/cadence/ic/5.1.41USR5/SunOS/tools.sun4v/dfII/etc/si/control.spectre /scratch/xliu/Sim/Igenerator_MV1_4mA/spectre/schematic/netlist/control
\o Copying Spectre source file 'spectre.inp'
\o Copying Spectre command file 'spectre.sim'
\o Begin Incremental Netlisting Jul  5 16:29:04 2009
\o End netlisting Jul  5 16:29:06 2009
\o
\o Netlisting Statistics:
\o  Number of components:   88
\o
\o  Elapsed time:          2.0s (44.00/s)
\o Errors: 0 Warnings: 0
\o       ...successful.
\o compose simulator input file...
\o       ...successful.
\o start simulator if needed...
\o       ...successful.
\o simulate...
\a hiResizeWindow(window(4) list(0:28 515:728))
\r t
\o Problems encountered during simulation.
\o Use the Simulation->Output Log menu for more information.
\o reading simulation data...
\o       ...successful.
\o    ... All corner simulations finished. ...

 The spectre.out is shown below. 

Loading /apps/cadence/mmsim/6.2/SunOS/tools.sun4v/cmi/lib/5.0/libinfineon_sh.so ...
Loading /apps/cadence/mmsim/6.2/SunOS/tools.sun4v/cmi/lib/5.0/libnortel_sh.so ...
Loading /apps/cadence/mmsim/6.2/SunOS/tools.sun4v/cmi/lib/5.0/libphilips_sh.so ...
Loading /apps/cadence/mmsim/6.2/SunOS/tools.sun4v/cmi/lib/5.0/libsparam_sh.so ...
Loading /apps/cadence/mmsim/6.2/SunOS/tools.sun4v/cmi/lib/5.0/libstmodels_sh.so ...
Using new Spectre Parser.

Warning from spectre during initial setup.
    WARNING (CMI-2426): I0.M56.m1: `Pdiblc1' = -14.6517e-03 is negative.


Circuit inventory:
              nodes 137
          equations 485
             iprobe 132  
            bsim3v3 80   
               jfet 1    
           quantity 9    
           resistor 82   
            vsource 4    


Warning from spectre during initial setup.
    WARNING (CMI-2426): I0.M56.m1: `Pdiblc1' = -14.6517e-03 is negative.

Entering Skill interactive front end.  (Use `sclHelp' for help, `sclQuit' to quit.)

Warning from spectre.
    WARNING (CMI-2426): I0.M56.m1: `Pdiblc1' = -14.6517e-03 is negative.


**********************
Alter Group `corner_9'
**********************
        model I21.M11.ngmvmod is altered
        model I21.M11.ngmvmod is altered
        model I21.M9.ngmvmod is altered
        model I21.M9.ngmvmod is altered
        model I21.M3.ngmvmod is altered
        model I21.M2.ngmvmod is altered
        model I21.M1.ngmvmod is altered
        model I21.M1.ngmvmod is altered
        model I1.M8.ngmvmod is altered
        model I1.M7.ngmvmod is altered
        model I1.M4.ngmvmod is altered
        model I1.M60.ngmvmod is altered
        model I1.M61.ngmvmod is altered
        model I1.M61.ngmvmod is altered
        model I1.M60.ngmvmod is altered
        model I0.M6.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M41.ngmvmod is altered
        model I0.M44.ngmvmod is altered
        model I0.M35.ngmvmod is altered
        model I0.M30.ngmvmod is altered
        model I0.M45.ngmvmod is altered
        model I0.M23.ngmvmod is altered
        model I0.M56.ngmvmod is altered
        model I0.M38.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M36.ngmvmod is altered
        model I0.M37.ngmvmod is altered
        model I0.M39.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M23.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M40.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M43.ngmvmod is altered
        model I0.M42.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model M2.pgmvmod is altered
        model M4.pgmvmod is altered
        model M3.pgmvmod is altered
        model M1.pgmvmod is altered
        model M0.pgmvmod is altered
        model I21.M7.pgmvmod is altered
        model I21.M7.pgmvmod is altered
        model I21.M5.pgmvmod is altered
        model I21.M5.pgmvmod is altered
        model I1.M0.pgmvmod is altered
        model I1.M57.pgmvmod is altered
        model I1.M0.pgmvmod is altered
        model I1.M64.pgmvmod is altered
        model I1.M0.pgmvmod is altered
        model I1.M64.pgmvmod is altered
        model I1.M64.pgmvmod is altered
        model I0.M17.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M4.pgmvmod is altered
        model I0.M4.pgmvmod is altered
        model I0.M4.pgmvmod is altered
        model I0.M31.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M31.pgmvmod is altered
        model I0.M53.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M50.pgmvmod is altered
        model I0.M50.pgmvmod is altered
        model I0.M57.pgmvmod is altered
        model I0.M53.pgmvmod is altered
        model I0.M50.pgmvmod is altered
        model I0.M53.pgmvmod is altered
        model I0.M64.pgmvmod is altered
        model I0.M63.pgmvmod is altered
        model I0.R3.rdiffp3mod is altered
        device "I21.M11.m1" is altered
        device "I21.M11.rd" is altered
        device "I21.M10.m1" is altered
        device "I21.M10.rd" is altered
        device "I21.M9.m1" is altered
        device "I21.M9.rd" is altered
        device "I21.M8.m1" is altered
        device "I21.M8.rd" is altered
        device "I21.M3.m1" is altered
        device "I21.M3.rd" is altered
        device "I21.M2.m1" is altered
        device "I21.M2.rd" is altered
        device "I21.M1.m1" is altered
        device "I21.M1.rd" is altered
        device "I21.M0.m1" is altered
        device "I21.M0.rd" is altered
        device "I1.M8.m1" is altered
        device "I1.M8.rd" is altered
        device "I1.M7.m1" is altered
        device "I1.M7.rd" is altered
        device "I1.M4.m1" is altered
        device "I1.M4.rd" is altered
        device "I1.M60.m1" is altered
        device "I1.M60.rd" is altered
        device "I1.M61.m1" is altered
        device "I1.M61.rd" is altered
        device "I1.M65.m1" is altered
        device "I1.M65.rd" is altered
        device "I1.M66.m1" is altered
        device "I1.M66.rd" is altered
        device "I0.M6.m1" is altered
        device "I0.M6.rd" is altered
        device "I0.M7.m1" is altered
        device "I0.M7.rd" is altered
        device "I0.M46.m1" is altered
        device "I0.M46.rd" is altered
        device "I0.M41.m1" is altered
        device "I0.M41.rd" is altered
        device "I0.M44.m1" is altered
        device "I0.M44.rd" is altered
        device "I0.M35.m1" is altered
        device "I0.M35.rd" is altered
        device "I0.M30.m1" is altered
        device "I0.M30.rd" is altered
        device "I0.M45.m1" is altered
        device "I0.M45.rd" is altered
        device "I0.M23.m1" is altered
        device "I0.M23.rd" is altered
        device "I0.M56.m1" is altered
        device "I0.M56.rd" is altered
        device "I0.M38.m1" is altered
        device "I0.M38.rd" is altered
        device "I0.M18.m1" is altered
        device "I0.M18.rd" is altered
        device "I0.M36.m1" is altered
        device "I0.M36.rd" is altered
        device "I0.M37.m1" is altered
        device "I0.M37.rd" is altered
        device "I0.M39.m1" is altered
        device "I0.M39.rd" is altered
        device "I0.M21.m1" is altered
        device "I0.M21.rd" is altered
        device "I0.M22.m1" is altered
        device "I0.M22.rd" is altered
        device "I0.M65.m1" is altered
        device "I0.M65.rd" is altered
        device "I0.M49.m1" is altered
        device "I0.M49.rd" is altered
        device "I0.M40.m1" is altered
        device "I0.M40.rd" is altered
        device "I0.M47.m1" is altered
        device "I0.M47.rd" is altered
        device "I0.M43.m1" is altered
        device "I0.M43.rd" is altered
        device "I0.M42.m1" is altered
        device "I0.M42.rd" is altered
        device "I0.M48.m1" is altered
        device "I0.M48.rd" is altered
        device "I0.M66.m1" is altered
        device "I0.M66.rd" is altered
        device "I0.M19.m1" is altered
        device "I0.M19.rd" is altered
        device "I0.M59.m1" is altered
        device "I0.M59.rd" is altered
        device "I0.M58.m1" is altered
        device "I0.M58.rd" is altered
        device "I0.M60.m1" is altered
        device "I0.M60.rd" is altered
        device "I0.M61.m1" is altered
        device "I0.M61.rd" is altered
        device "M2.m1" is altered
        device "M2.rd" is altered
        device "M4.m1" is altered
        device "M4.rd" is altered
        device "M3.m1" is altered
        device "M3.rd" is altered
        device "M1.m1" is altered
        device "M1.rd" is altered
        device "M0.m1" is altered
        device "M0.rd" is altered
        device "I21.M7.m1" is altered
        device "I21.M7.rd" is altered
        device "I21.M6.m1" is altered
        device "I21.M6.rd" is altered
        device "I21.M5.m1" is altered
        device "I21.M5.rd" is altered
        device "I21.M4.m1" is altered
        device "I21.M4.rd" is altered
        device "I1.M0.m1" is altered
        device "I1.M0.rd" is altered
        device "I1.M57.m1" is altered
        device "I1.M57.rd" is altered
        device "I1.M63.m1" is altered
        device "I1.M63.rd" is altered
        device "I1.M64.m1" is altered
        device "I1.M64.rd" is altered
        device "I1.M67.m1" is altered
        device "I1.M67.rd" is altered
        device "I1.M68.m1" is altered
        device "I1.M68.rd" is altered
        device "I1.M1.m1" is altered
        device "I1.M1.rd" is altered
        device "I0.M17.m1" is altered
        device "I0.M17.rd" is altered
        device "I0.M20.m1" is altered
        device "I0.M20.rd" is altered
        device "I0.M4.m1" is altered
        device "I0.M4.rd" is altered
        device "I0.M5.m1" is altered
        device "I0.M5.rd" is altered
        device "I0.M33.m1" is altered
        device "I0.M33.rd" is altered
        device "I0.M31.m1" is altered
        device "I0.M31.rd" is altered
        device "I0.M27.m1" is altered
        device "I0.M27.rd" is altered
        device "I0.M32.m1" is altered
        device "I0.M32.rd" is altered
        device "I0.M53.m1" is altered
        device "I0.M53.rd" is altered
        device "I0.M29.m1" is altered
        device "I0.M29.rd" is altered
        device "I0.M28.m1" is altered
        device "I0.M28.rd" is altered
        device "I0.M50.m1" is altered
        device "I0.M50.rd" is altered
        device "I0.M52.m1" is altered
        device "I0.M52.rd" is altered
        device "I0.M57.m1" is altered
        device "I0.M57.rd" is altered
        device "I0.M54.m1" is altered
        device "I0.M54.rd" is altered
        device "I0.M55.m1" is altered
        device "I0.M55.rd" is altered
        device "I0.M51.m1" is altered
        device "I0.M51.rd" is altered
        device "I0.M64.m1" is altered
        device "I0.M64.rd" is altered
        device "I0.M63.m1" is altered
        device "I0.M63.rd" is altered
        device "I0.R3.rdc" is altered
        device "I0.R3.j1" is altered
        device "I0.R3.rsc" is altered

Warning from spectre during altergroup `corner_9'.
    WARNING (CMI-2426): I0.M56.m1: `Pdiblc1' = -14.6517e-03 is negative.


******************
DC Analysis `dcOp'
******************
Important parameter values:
    reltol = 100e-06
    abstol(V) = 1 uV
    abstol(I) = 1 pA
    temp = 27 C
    tnom = 27 C
    tempeffects = all
    gmin = 1 pS
    maxrsd = 0 Ohm
    mos_method = s
    mos_vres = 50 mV
Trying `homotopy = gmin'.
Convergence achieved in 199 iterations.
Accumulated dc load time = 150 ms.
Accumulated dc factor time = 60 ms.
Accumulated dc solve time = 10 ms.
Accumulated dc output time = 0 s.
Total time required for dc analysis `dcOp' was 240 ms.

dcOpInfo: writing operating point information to rawfile.

Warning from spectre.
    WARNING (CMI-2426): I0.M56.m1: `Pdiblc1' = -14.6517e-03 is negative.


**********************
Alter Group `corner_8'
**********************
        model I21.M11.ngmvmod is altered
        model I21.M11.ngmvmod is altered
        model I21.M9.ngmvmod is altered
        model I21.M9.ngmvmod is altered
        model I21.M3.ngmvmod is altered
        model I21.M2.ngmvmod is altered
        model I21.M1.ngmvmod is altered
        model I21.M1.ngmvmod is altered
        model I1.M8.ngmvmod is altered
        model I1.M7.ngmvmod is altered
        model I1.M4.ngmvmod is altered
        model I1.M60.ngmvmod is altered
        model I1.M61.ngmvmod is altered
        model I1.M61.ngmvmod is altered
        model I1.M60.ngmvmod is altered
        model I0.M6.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M41.ngmvmod is altered
        model I0.M44.ngmvmod is altered
        model I0.M35.ngmvmod is altered
        model I0.M30.ngmvmod is altered
        model I0.M45.ngmvmod is altered
        model I0.M23.ngmvmod is altered
        model I0.M56.ngmvmod is altered
        model I0.M38.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M36.ngmvmod is altered
        model I0.M37.ngmvmod is altered
        model I0.M39.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M23.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M40.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M43.ngmvmod is altered
        model I0.M42.ngmvmod is altered
        model I0.M46.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model I0.M7.ngmvmod is altered
        model I0.M21.ngmvmod is altered
        model M2.pgmvmod is altered
        model M4.pgmvmod is altered
        model M3.pgmvmod is altered
        model M1.pgmvmod is altered
        model M0.pgmvmod is altered
        model I21.M7.pgmvmod is altered
        model I21.M7.pgmvmod is altered
        model I21.M5.pgmvmod is altered
        model I21.M5.pgmvmod is altered
        model I1.M0.pgmvmod is altered
        model I1.M57.pgmvmod is altered
        model I1.M0.pgmvmod is altered
        model I1.M64.pgmvmod is altered
        model I1.M0.pgmvmod is altered
        model I1.M64.pgmvmod is altered
        model I1.M64.pgmvmod is altered
        model I0.M17.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M4.pgmvmod is altered
        model I0.M4.pgmvmod is altered
        model I0.M4.pgmvmod is altered
        model I0.M31.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M31.pgmvmod is altered
        model I0.M53.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M20.pgmvmod is altered
        model I0.M50.pgmvmod is altered
        model I0.M50.pgmvmod is altered
        model I0.M57.pgmvmod is altered
        model I0.M53.pgmvmod is altered
        model I0.M50.pgmvmod is altered
        model I0.M53.pgmvmod is altered
        model I0.M64.pgmvmod is altered
        model I0.M63.pgmvmod is altered
        model I0.R3.rdiffp3mod is altered
        device "I21.M11.m1" is altered
        device "I21.M11.rd" is altered
        device "I21.M10.m1" is altered
        device "I21.M10.rd" is altered
        device "I21.M9.m1" is altered
        device "I21.M9.rd" is altered
        device "I21.M8.m1" is altered
        device "I21.M8.rd" is altered
        device "I21.M3.m1" is altered
        device "I21.M3.rd" is altered
        device "I21.M2.m1" is altered
        device "I21.M2.rd" is altered
        device "I21.M1.m1" is altered
        device "I21.M1.rd" is altered
        device "I21.M0.m1" is altered
        device "I21.M0.rd" is altered
        device "I1.M8.m1" is altered
        device "I1.M8.rd" is altered
        device "I1.M7.m1" is altered
        device "I1.M7.rd" is altered
        device "I1.M4.m1" is altered
        device "I1.M4.rd" is altered
        device "I1.M60.m1" is altered
        device "I1.M60.rd" is altered
        device "I1.M61.m1" is altered
        device "I1.M61.rd" is altered
        device "I1.M65.m1" is altered
        device "I1.M65.rd" is altered
        device "I1.M66.m1" is altered
        device "I1.M66.rd" is altered
        device "I0.M6.m1" is altered
        device "I0.M6.rd" is altered
        device "I0.M7.m1" is altered
        device "I0.M7.rd" is altered
        device "I0.M46.m1" is altered
        device "I0.M46.rd" is altered
        device "I0.M41.m1" is altered
        device "I0.M41.rd" is altered
        device "I0.M44.m1" is altered
        device "I0.M44.rd" is altered
        device "I0.M35.m1" is altered
        device "I0.M35.rd" is altered
        device "I0.M30.m1" is altered
        device "I0.M30.rd" is altered
        device "I0.M45.m1" is altered
        device "I0.M45.rd" is altered
        device "I0.M23.m1" is altered
        device "I0.M23.rd" is altered
        device "I0.M56.m1" is altered
        device "I0.M56.rd" is altered
        device "I0.M38.m1" is altered
        device "I0.M38.rd" is altered
        device "I0.M18.m1" is altered
        device "I0.M18.rd" is altered
        device "I0.M36.m1" is altered
        device "I0.M36.rd" is altered
        device "I0.M37.m1" is altered
        device "I0.M37.rd" is altered
        device "I0.M39.m1" is altered
        device "I0.M39.rd" is altered
        device "I0.M21.m1" is altered
        device "I0.M21.rd" is altered
        device "I0.M22.m1" is altered
        device "I0.M22.rd" is altered
        device "I0.M65.m1" is altered
        device "I0.M65.rd" is altered
        device "I0.M49.m1" is altered
        device "I0.M49.rd" is altered
        device "I0.M40.m1" is altered
        device "I0.M40.rd" is altered
        device "I0.M47.m1" is altered
        device "I0.M47.rd" is altered
        device "I0.M43.m1" is altered
        device "I0.M43.rd" is altered
        device "I0.M42.m1" is altered
        device "I0.M42.rd" is altered
        device "I0.M48.m1" is altered
        device "I0.M48.rd" is altered
        device "I0.M66.m1" is altered
        device "I0.M66.rd" is altered
        device "I0.M19.m1" is altered
        device "I0.M19.rd" is altered
        device "I0.M59.m1" is altered
        device "I0.M59.rd" is altered
        device "I0.M58.m1" is altered
        device "I0.M58.rd" is altered
        device "I0.M60.m1" is altered
        device "I0.M60.rd" is altered
        device "I0.M61.m1" is altered
        device "I0.M61.rd" is altered
        device "M2.m1" is altered
        device "M2.rd" is altered
        device "M4.m1" is altered
        device "M4.rd" is altered
        device "M3.m1" is altered
        device "M3.rd" is altered
        device "M1.m1" is altered
        device "M1.rd" is altered
        device "M0.m1" is altered
        device "M0.rd" is altered
        device "I21.M7.m1" is altered
        device "I21.M7.rd" is altered
        device "I21.M6.m1" is altered
        device "I21.M6.rd" is altered
        device "I21.M5.m1" is altered
        device "I21.M5.rd" is altered
        device "I21.M4.m1" is altered
        device "I21.M4.rd" is altered
        device "I1.M0.m1" is altered
        device "I1.M0.rd" is altered
        device "I1.M57.m1" is altered
        device "I1.M57.rd" is altered
        device "I1.M63.m1" is altered
        device "I1.M63.rd" is altered
        device "I1.M64.m1" is altered
        device "I1.M64.rd" is altered
        device "I1.M67.m1" is altered
        device "I1.M67.rd" is altered
        device "I1.M68.m1" is altered
        device "I1.M68.rd" is altered
        device "I1.M1.m1" is altered
        device "I1.M1.rd" is altered
        device "I0.M17.m1" is altered
        device "I0.M17.rd" is altered
        device "I0.M20.m1" is altered
        device "I0.M20.rd" is altered
        device "I0.M4.m1" is altered
        device "I0.M4.rd" is altered
        device "I0.M5.m1" is altered
        device "I0.M5.rd" is altered
        device "I0.M33.m1" is altered
        device "I0.M33.rd" is altered
        device "I0.M31.m1" is altered
        device "I0.M31.rd" is altered
        device "I0.M27.m1" is altered
        device "I0.M27.rd" is altered
        device "I0.M32.m1" is altered
        device "I0.M32.rd" is altered
        device "I0.M53.m1" is altered
        device "I0.M53.rd" is altered
        device "I0.M29.m1" is altered
        device "I0.M29.rd" is altered
        device "I0.M28.m1" is altered
        device "I0.M28.rd" is altered
        device "I0.M50.m1" is altered
        device "I0.M50.rd" is altered
        device "I0.M52.m1" is altered
        device "I0.M52.rd" is altered
        device "I0.M57.m1" is altered
        device "I0.M57.rd" is altered
        device "I0.M54.m1" is altered
        device "I0.M54.rd" is altered
        device "I0.M55.m1" is altered
        device "I0.M55.rd" is altered
        device "I0.M51.m1" is altered
        device "I0.M51.rd" is altered
        device "I0.M64.m1" is altered
        device "I0.M64.rd" is altered
        device "I0.M63.m1" is altered
        device "I0.M63.rd" is altered
        device "I0.R3.rdc" is altered
        device "I0.R3.j1" is altered
        device "I0.R3.rsc" is altered

******************
DC Analysis `dcOp'
******************
Important parameter values:
    reltol = 100e-06
    abstol(V) = 1 uV
    abstol(I) = 1 pA
    temp = 27 C
    tnom = 27 C
    tempeffects = all
    gmin = 1 pS
    maxrsd = 0 Ohm
    mos_method = s
    mos_vres = 50 mV
Convergence achieved in 69 iterations.
Accumulated dc load time = 180 ms.
Accumulated dc factor time = 70 ms.
Accumulated dc solve time = 10 ms.
Accumulated dc output time = 10 ms.
Total time required for dc analysis `dcOp' was 50 ms.

dcOpInfo: writing operating point information to rawfile.

**********************
Alter Group `corner_5'
**********************
        model I21.M11.ngmvmod is altered
        model I21.M11.ngmvmod is altered
        model I21.M9.ngmvmod is altered
        model I21.M9.ngmvmod is altered
        model I21.M3.ngmvmod is altered
        model I21.M2.ngmvmod is altered
        model I21.M1.ngmvmod is altered
        model I21.M1.ngmvmod is altered
        model I1.M8.ngmvmod is altered
        model I1.M7.ngmvmod is altered

This is the end of the spectre.out file. It was supposed to have 15 different corners. But the attached looked like it had been chopped half way through. 

  • Cancel

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information