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Type: Posts; User: JLHW

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  1. Closed: Problems in Verifying Silterra Library Cells using Calibre

    Hi, I'm using Calibre in Cadence Virtuoso to verify my layout using Silterra's PDK. I have acquired all four DRC and LVS/PEX runset and header TXT files, but all of them could not be loaded inside...
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    Closed: Re: W/L of pMOS and nMOS of CD4007 Chip.

    Did some quick digging and found this, your answer should be in page 7: https://people.rit.edu/lffeee/CD4007_SPICE_MODEL.pdf

    PMOS:

    W = 360 um, L = 10 um

    nMOS:

    W = 170 um, L = 10 um
  3. Closed: Error and Questions related to Calibre 2015 in Cadence

    Hi, the PDK I currently use supports Calibre, but their header and runset file for DRC and LVS are all in TXT format (4 files in total), may I know are text files supported by Calibre?

    Also, when...
  4. Closed: Re: Simulation discrepancies between Sonnet (standalone) and Sonnet Cadence Interface

    So hypothetically, if I remove the feedlines in SCI (only the oval shapes are left), will the simulation results be the same with my previous simulations in Sonnet?




    Speaking of which, these...
  5. Closed: Re: Simulation discrepancies between Sonnet (standalone) and Sonnet Cadence Interface

    there are arrows in all inductors in xgeom, in fact, all of them are synthesised by your spiral inductor assistant and come with the arrows by default.

    154839

    Besides, in SCI, I've taken...
  6. Closed: Re: Simulation discrepancies between Sonnet (standalone) and Sonnet Cadence Interface

    The feedlines are the same as I imported their gdsII from Sonnet.

    not sure about the de-embedding settings and different equations, may I know where to check it?

    (edit: the equations I used are...
  7. Closed: Simulation discrepancies between Sonnet (standalone) and Sonnet Cadence Interface

    Hi,

    As per title, I am simulating four custom inductors that'll operate at their target inductance at 60 GHz. All simulations are satisfactory when using Sonnet by itself, however when I...
  8. Closed: Questions in manually creating substrate files for Sonnet Cadence Interface

    Hi everyone,

    I've successfully simulated several inductors in Sonnet and is moving on to re-simulate them using Sonnet Cadence Interface and integrate them into my LNA in Cadence Virtuoso for...
  9. [SOLVED]Closed: Re: [DISCUSSION] Maximum ram usage for Sonnet/HFSS simulation

    Agreed, especially when I have only 4GB of soldered RAM on my laptop, I had to configure my simulation to output relatively accurate results while using just below my RAM limit. Compromises had to be...
  10. [SOLVED]Closed: Re: [DISCUSSION] Maximum ram usage for Sonnet/HFSS simulation

    Wow, that's an impressive amount of RAM, and even that was still not enough for you! May I know how large is the structure?
  11. [SOLVED]Closed: Re: [DISCUSSION] Maximum ram usage for Sonnet/HFSS simulation

    Thanks for the reply! I'm aware that I can reduce RAM usage by using conformal mesh and increase the size of the mesh, I'm just curious whether anyone here had hit high RAM usage for their projects,...
  12. [SOLVED]Closed: [DISCUSSION] Maximum ram usage for Sonnet/HFSS simulation

    Hi, I'm just curious, what are your maximum used RAM for the projects you've been simulated for either/both software?

    Is it possible to achieve extreme RAM usage, like 64 GB or above for a single...
  13. [SOLVED]Closed: Re: Questions for Dr. Mühlhaus Spiral Inductor Assistant for Sonnet

    Say I created four single-turn round (stadium) inductors to operate at 60 GHz, all within 68 pH to 104 pH, and I've simulated them with Sonnet, they somehow reached my targeted inductance with decent...
  14. [SOLVED]Closed: Questions for Dr. Mühlhaus Spiral Inductor Assistant for Sonnet

    Hi, I'm designing custom inductors using Spiral Inductor Assistant for Sonnet. Below are my questions:

    1. For "round differential" inductors, if i'm creating a single-turn inductor, why does the...
  15. [SOLVED]Closed: Re: Cadence Spectre CIW Warning and Error (ADE-3023)

    UPDATE:

    I've somehow solved the problem.

    What I did:

    1. In .bashrc, I've typed the wrong directory at the MMSIM lines, so I've changed the part as shown below (some paths may be redundant):...
  16. [SOLVED]Closed: Re: Cadence Spectre CIW Warning and Error (ADE-3023)

    If I enter "which spectre", the terminal returned:


    [JLHW@jlhw opt]$ which spectre
    /usr/bin/which: no spectre in...
  17. [SOLVED]Closed: Re: Cadence Spectre CIW Warning and Error (ADE-3023)

    /opt/cadence/MMSIM151/tools/spectre
  18. [SOLVED]Closed: Cadence Spectre CIW Warning and Error (ADE-3023)

    Hi, I, a rookie in Linux environment, have installed Cadence IC617 on CentOS 7.6 and was going to simulate an analogue IC schematic.

    When I launched ADE L, the command interpreter window (CIW)...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    I've copied the script into both .bashrc files (in /root and $HOME) and it finally initialised.

    I've also copied the sonnet.cdsenv file into both my working directory and...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    I've searched in both directories (/home/JLHW and /root). in /home/JLHW, there are no .profile or .cshrc found, .cshrc is actually at /root, and .profile is not found here as well.

    I've tried...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    For the .cdsinit, as I've mentioned that I've copied the sonnet code into all .cdsinit files that I could find including that in ~./, and virtuoso never autostart during every startup, that should be...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    The CIW problem is still unsolved.






    there's one more .cdsinit I've haven't mentioned, in my PDK's folder. it's in /home/JLHW/EDA/PDK/<the PDK folder>.

    /home/JLHW/EDA will be my project...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    OK, I've proceeded with the chgrp command as shown before and added sonnet installation directory after the original code. I've found out that I still cannot invoke sonnet in regular user with the...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    I've typed the command with order except the chgrp because i need to create it first. As a reminder, I'm now logged back into root.

    this is what I've done in desktop's terminal:


    [root@jlhw...
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    [SOLVED]Closed: Re: Sonnet Installation in CentOS 7

    ok i've managed to install some libraries based on the list in http://www.sonnetsoftware.com/products/sonnet-suites/requirements-redhat.html, some libraries are not available and i could only ignore...
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