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21 Threads found on edaboard.com: Encounter Capacitance
Do I have to run "setDesignMode -process" in the beginning of the design or the tech. process is infered from imported LEF files ? Also, how does this command influence the design flow ?
I'm trying to simulate coupling capacitance between two interconnect wires response to changing the seprating distance between them in 45nm process. I found many coupling cap. values between the two nets (each for different node), but only one coupling cap. reacted with changing the distance so that's how I figured the right node between the two w
a) yes, you can draw wires freely using both the gui and commands b) doesn't matter c) encounter has multiple built-in capacitance extraction modes, some are simple, some are complicated. virtuoso is kind of the same. I would decide based on the design size.
I have a layout design in SoC encounter to which I want to add manually some extra wires to the layout (these are EXTRA and don't have anything to do with the design netlist) and modify the gap between another some wires (to measure coupling capacitance and crosstalk effects between wires). I'm using NanGate 45nm Open Cell Library. I'm beginning my
Hello, I have a layout design in SoC encounter to which I want to add manually some extra wires to the layout (these are EXTRA and don't have anything to do with the design netlist) and modify the gap between another some wires (to measure coupling capacitance and crosstalk effects between wires). I'm using NanGate 45nm Open Cell Library.I'm
I need somehelp to set design constraints ( on timing, capacitance ,area etc). I have written a constraints.g file and i am reading it using read_sdc command in cadence encounter( RTL compiler) . Can someone suggest me the commands that need to be written to set these constraints.
I am using Nangate library with IC compiler (Synopsys). In order to perform a complete P&R , I need the tlu+ file (or its .itf file). I know that the same info is provided at the capacitance tables for Cadence SoC encounter (.capTbl) file. Does anyone how to translate .capTbl file into a .itf file? Best Regards, toni
with the report_timing, you could also report the -capacitance seen and other info. Have you access to ETS (encounter Timing System) which could read a encounter SOC database, and have more report capacitance capability. or look inside the .lib file.
Does anyone know how to report the capacitance at a particular net or port in SoC encounter? Also, how can you set the capacitance limit for a particular net/port? Thanks
Dear all, I am using Cadence tools to do both frontend and backend of a simple RTL design: I have synthesized the design to RTL netlist, and down to backend flow using Cadence encounter Digital Implementation system tools, already placed the design against 45nm standard-cell library. Now I want to have capacitance value of such design. How to d
1. using setOptCond command. 2. No i think. 3. Normally best case and worst case operating condition is used for SoC encounter do timing optimization of setup and hold. 4. Post-PD netlist has complete clock tree structure and so more accurate timing analysis with wire capacitance. Thanks.
i m doing layout of a adder circuit in soc encounter, i want to extract capacitance from the layout, but the rc extraction button is not showing in the encounter, even after timing analysis, what could be the possible error?
capacitance table file contains 2 different section. 1. Basic Cap table section. 2. Extended Cap table section. How to use the Extended Cap table section during the Place & Route? Is it possible to control the usage of the Basic & Extended cap table section values?
What is the difference between Captable & QRC Tech file? Can we use the Captable during the sign-off extraction instead of QRC Tech file?
Hello guys, I have a design (leon3) on Soc encounter, I have placed and routed successfully the design and i want to measure the capacitance of the wires connected to each module. I extracted the rc.cap (with extractRC command), but I get the capacitance of each net for all nets of the design (not for a specific module) i.e. when i (...)
I am working on analysing the effect of various place and route schemes on the capacitance of a circuit. So,please let me know the different place and route schemes used in Cadence encounter in the order of optimality it provides
Hi, does anyone use cadence SOC encounter to do the nangate 45nm design? How do you run RC extraction if you use SOC flow? I am using native RC extraction, detail mode, however, It needs Interconnect technology (ICT) input file to generate capacitance tables. But I can't find enough information for diffusion and dielectric layers in nangate
Hi all, i am new to soce. what is captable file? where it is being used? any document on format of captable? Thanks in advance.
I have few questions about RC extraction What is the difference between hierarchical and flat wireload model? I've read about the difference in socUG, but I need a better explaination. Is generating capacitance table important? whoever if the ict file is not provided from the technology provider, who can you create one? from where do you
dear all I have the following error using encounter. Inconsistent capacitive load unit across different timing libraries, unit of 1pf will be used Please let me know how i can over come this prob Suresh