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76 Threads found on Need And Pdk
Hi David - You need to generate CCI (QCI) database from Calibre SVRF database (using Calibre Query Server - you need to have CCI license to do that), and use that CCI as one of the inputs when compiling QRC techFile. Ask Cadence for help, as these things can get tricky and might require Cadence support (especially so that (...)
I need transconductance parameter Kn of the NMOS and Kp of the PMOS . The amount of kn and kp for 90nm technology and 0.13un and 0.18un Tsmc company like. Thank you.
Hi I am using Synopsys design compiler as synthesize tool , I have pdk from a vendor that doesn't have symbol library then I can't do synthesize in design vision. is this library needed if I don't use gui and don't need to se schematics ? and is there any way to synthesize without this library ? (...)
hi I am working with 180nm TS18 pdk. Purpose is to swap body connections of PMOS and NMOS (body of PMOS to ground and body of NMOS to VDD) since there is no NMOS which has triple well, so I need to make it by myself by adding buried layer to the NMOS18 but then there will be a problem in LVS as there will be two extra how (...)
Hi If I want to be an Analog designer (Discrete or IC) how much device physics is needed? Already done a semi-conductor physics course, but not devices (i.e First 6 chapters of Neamen's book and an intro to PN junction). Do I have to take a device course in order to be good analog engineer? Level: Undergraduate Thanks.
This is done all the time, you just need to have two MOSFET models fitting the two species and link the symbol appropriately to the model for each instance (or, you make a symbol for each FET species that has a link to the proper model). If you were going to do this for reals you'd have a foundry pdk from a flow that offered such (...)
I need 65nm node technology files or less (28nm is preferable) for education purpose for cadence virtuoso. from where I can get those... kindly help me...
You need to scroll back further and address any complaints about libraries not found, failure of extract process, etc. I see some complaints about not being able to find what look like basic pdk library primitives, maybe your library setup is not making it to the verification tool's setup or something like that. Technology file (...)
A well designed amplifier -should- have trivial Vio variation with PVT and one which has any sort of autozero function may display no measurable Vio even with gross VT scatter. You need mismatch statistics enabled (by you) and modeled (by foundry, or roll your own) to see realism in Vio. The pdk docs ought to tell you the (...)
A bit more info would be helpful: show what you already have achieved, and describe exactly where or what for you need help! W/L ratios not only depend on process size, but also on the transistor models used. 180 nm cadence isn't enough, you should also tell which pdk you are using.
Hello, I am new to this TSMC 40nm pdk and they have plenty of device options. For example, for a 1.8V nominal vt device, I have options: nch25ud18 nch25ud18_dnw_mac nch25ud18_dnw_macx nch25ud18_mac nch25ud18_macx nch25ud18x I am actually trying to design an high speed op-amp and I am not sure about the difference between (...)
Cadence doesn't have any foundry technology; foundries do. If all you have is the generic, analogLib, basicLib then you will not find a layout for anything. You need the foundry pdk libraries, technology file / library, layertable and so on. The pdk ought to have docs that show construction. You evidently want a P+/Nwell (...)
Hello, To have standart cells, you need a pdk, from a foundry. If you have no access to foundry kit, cadence provides a generic pdk. All the informations you request are in the pdk documentation. Which pdk do you plan to use ?
i m in need of TSMC 500nm / plz help me
If the foundry demands a minimum density then they probably have provided in the pdk, their preferred density fill cell. This would have dense features on all layers. The cells can be left to float, or be tied to something benign (like substrate, where it will sit anyway, and substrate-potential metal if you feel the (...)
Hi.. i am using 28mn technology and have 900mV supply voltage.. i need to convert 0 to 800mV bias voltage into.. 200mV to 700mV i have 900mV MOS and 1,8V moses in my pdk.. which type of circuit shoul be used to achieve this..? thanks
Hi, I want to do the variability analysis on my design and hence I need sigma of vth and u0 (standard deviation of threshold voltage and mobility) for monte carlo simulations. I have the 90nm pdk as well, but I dont know where these values are written. Can you please tell me how to get (...)
Hi, I need the exact formula of calculating the capacitor value of Metal1 - Metal1, for example 90nm or 60 nm. Thank you
When I run PEX in Calibre I have a fatal error: Rules file must contain a CAPACITANCE ORDER statement. I'm a beginner and I need the PEX of an inverter layout! Thank you
I?m doing a Power module project, and need 47uH Isat>350mA SMT inductor for SiP. Where i can find the SMT inductor size for this project? Thanks.