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Recent content by tompham

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    Script to find probe pads location in cadence virtuoso layout

    Hi all Anyone know how to write script to find probe pads location in cadence virtuoso ic layout? Thanks
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    How to do dc sweep 2 variables input in cadence spectre

    Hi pancho_hideboo Where I can add the lines you mention? In input.scs? and after adding the lines I need to run not to netlist and run? Thanks
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    How to do dc sweep 2 variables input in cadence spectre

    Hi all Anyone know how to run cadence spectre with sweeping 2 input variables? Let say sweep vgs and vds of nmos Thank your
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    How to probe hierarchy signal in cadence spectre

    Hi all Anyone know how to probe hierarchy signal in cadence spectre? I only know how to probe signal on the top only. Thanks a lot
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    How to choose VDD and temp in hspice corner

    Hi all I have question about how to choose vdd and temp in SF and FS (slow-fast and fast-slow) corner in hspice In case of SS, I choose VDD = 0.9 * VDDnom and temp = 125 In case of FF, I choose VDD = 1.1 * VDDnom and temp = 0 Thank you
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    How to convert a circuit from old technology to new technology

    Dear all I have a question how to convert a circuit from old technology to new technology. Let say I have a bandgap design using 250nm technology and want to design to 180nm. How I can do it: Do I have to design from beginning using 250nm schematic?. Assume both process bandgap take out 1.2v...
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    [SOLVED] Using Synopsys SAED 32/28nm Spice Model (HSPICE)

    Hi Search your model to see they define the same transistor name as your circuit (n105, p105). If it does let try copy your saed32nm.lib to your local working directory and do .lib 'saed32nm.lib' TT to see if it works or .include 'saed32nm.lib' TT
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    TSMC PDK installation guide

    Hi If you use later cadence version 613 following the steps below: 1/ tar your pdk in cadence working directory 2/ open cadence virtuoso (icfb or virtuoso) 3/ From CIW windows ----> tools -----> Conversion Tool Box -----> CDB to OpenAcess Translator and from this point to path that has your...
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    the size of NMOS trasistors of circuit

    Hi Just give 2 equals nmos minimum sizes (length, width) and assign Va a dc voltage. Sweep Vc from 0 to some dc number and plot Id1, Id2. I expect Id1 is constant since it is in diode connection and Id2 will go from low to high current because you sweep its gate from 0 to some dc number
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    the size of NMOS trasistors of circuit

    Hi Can u tell us your spec? Look like missing some part of circuit?
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    tested output of delay locked loop in cadence spectre tool in .18um technology.

    Hi You should use 50% duty circle output buffer to get good result. The circuit is simple and can find from google
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    [SOLVED] CMOS Challenge #2: Help fix this register

    Hi papanatas I see output ok at pattern "01" but after that something look funny to me
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    virtuoso crash (with log)

    Hi cuiviay You should install cadence on scientific linux better than centos. From you log file I can see you install cadence virtuoso 6.1.4 64bits on centos. I did install on ubuntu and centos before and get crashes so many times and I decide to install on scientic linux. It look like you...
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    mount a second hard drive in scientific linux

    Hi flanello Thanks for your suggestion. I already mounted my second hard drive to linux sysem. I have scientific linux install on primary drive and want to have windows os on second one. Do you know how to do it? Someone told me I can disconnect linux hard drive and install windows on second one...
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    mount a second hard drive in scientific linux

    Hi all I want to mount a secodary hard drive in scientific linux: This is information of hard drive when i type fdisk -l Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical)...
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