• How to find floating metals in layout using SVRF?

    How to find floating metals (metals that are not connected to diffusion or poly or pins) in layout using SVRF? 
    last modified by sharu
  • Calibre Pex R+C+CC  extraction

    Hi All,   What is the difference between  C and CC parasitics in a Pex  R+C+CC extraction.    As far I know, CC is coupling cap. i.e capacitance between particular net to a neighbouring net ...
    last modified by anandmohancec
  • Issue with random number generation: artifacts in gaussian distributions

    The issue is as the title says. I'm getting some weird artifacts when I generate random numbers with a gaussian distribution. It seems like certain bins of numbers are being generated more often than others while some...
    created by v_govind_bdepz
  • Calibre cannot type in GUI

    I have an issue when I open calibre and try to run drc/lvs/xrc. The dialog box opens but I cannot type, meaning the application is not accepting input from the keyboard. The mouse works fine, allowing to navigate thro...
    last modified by dan_dmea
  • Running Calibre DRC on DEF from INNOVUS

    Hi All,   I want to run Calibre signoff DRC check for the DEF that is extracted from INNOVUS. I have the GDS present for all the IP's that are used in the design. Please let me know the correct approach for thi...
    last modified by newbie_3
  • Modelsim/Questasim unit delay simulation

    I would like to launch an unit delay RTL simulation using Questasim 10.1. I ve look how to compile the design and i see there is an option +delay_mode_unit for compiling verilog files. My design is vhdl. Is there an o...
    created by mxm89
  • Modelsim ( Questasim 10.1) save results from a certain time and see schematic data

    Hi All, I ve launched a simulation for reproducing a bug. The bug happens after 1s of simulation time and so the simulation last too much. Is there a way to save only the waveform and the other infos from a certain po...
    created by mxm89
  • .PZ data

    I have run a .PZ stability analysis and have got the data in terms of poles and zeros as shown below. POLES       MODULUS           ...
    created by kooshar
  • Error in eldo simulation when running with premier + multi-thread

    Hi,   I encounter the simulation error when I try to run eldo simulation with premier and multi-thread, here is how I submit the command to the server:   bsub  -q reg -R "rh60" -P xxxx -Ip -n 4 e...
    created by ktlee
  • Tessent: scan chain elements/families to include when defining scan modes

    In the example given for clubbing all OCC scan elements under 1 scan mode, 2 scan chain families are included in the add_scan_mode like so (see last command):   >register_attribute -name is_occ -obj_type scan...
    created by vijay82
  • Compare technology lef and calibre drc rule file

    Hi,  Is there a method or tool available to compare the technology lef file and the calibre DRC rule file to find any mismatches?   Thanks and Regards     Varun M J
    created by varunmj
  • User of centering in LCell_MakeLogo function

    Hello Everyone   Probably a very basic question. However, I have some problems making the centering of text work when using the LCell_MakeLogo function in a T-Cell The L-Edit manual says the following.   ...
    last modified by tom.larsen@epfl.ch
  • Why Calibre gives compilation error in -flat mode?

    If I run Calibre with the -flat switch I get the following message:   ERROR: FLAT COMPILER Error on line 0 of <my_path>/<my_file>.rsf - 5421 forbidden operations present   If I run the same set...
    last modified by analogmatch
  • Calibre lvs signature for inductor

    I am creating signature file for Inductor. when i run "create_signature" i am getting following error. "Cannot establish connectivity of this layer in the MASK connectivity set: metal6"
    last modified by bharath2k4er

    Hi all,   I am trying to run the lvs with partial gds of some IP, but  I am having "Layout extra pin" and "Source extra pin" issues in a IP with LVS BOX statement. And I have known that Calibre can use ...
    last modified by fangjuan
  • Overflow pointing to Pwell

    I making a GDI adder for my pipelined multiplier and I came across overflow that I cannot resolve. I think its mainly due to the lack of knowledge, but please help me here. The overflow that points from the Metal1 to ...
    created by ivanaleksyeyenko
  • LVS Different number of ports

    Hi! LVS is giving me different number of ports, even though I auto-placed ports, Autoflorplan, and auto-placed the standard cells. I decided to check this on a small design of just an AND gate and the same thing came ...
    last modified by ivanaleksyeyenko
  • DSPF extract with a extra resistance

    Below is DSPF extract by calibre,R0 is extracted with a extra resistance  "1338 ",so how can ignore it by setup? I do not need this parameter in dspf. I need the format of R1 like.   *|DSPF 1.5 * ...
    created by hu_qy
  • Net name size global modification

    I need use Xpedition Designer V.X 2.4 modify a schematic, I found that the previous schematic net name size is some 2.00mm and some is 2.54mm. I want to know how to set the size so that they can be exactly the same. &...
    created by brantgu
  • what options in v2lvs make the different pin format in the output netlist?

    what options in v2lvs make the different pin format in the output netlist? one is: Xsw_cnm/runit_top_wrap/runit_top/runit_rams_top/BOOTROM_48KB_boot_rom/tsmc_12nm_rom_rom0 + FE_OFN1017130_sw_cnm_runit_top_wrap_runi...
    created by lingwan