Finding all paths in a cell and increase width
I never used SKILL before but I decided to put one together to migrate a cell library. The final piece I am missing is finding all paths on a particular metal layer (e.g. M1) whose width is less than...
View ArticleOrcad Capture TCL scripting
Hi All,I would like to use Orcad Capture TCL scripting. Before the 1st hotfix of 16.3 the command window in Capture echoed all of the operations performed during the editing session. Also .captcl...
View Articlecalculating falltime of output waveform
Hi all,Is there any function for calculating the falltime of the waveform in VIVA calculator? I am able to see a function RISETIME but nothing by the name of similar to falltime? regards
View ArticleAlternative way of getting the column in a list
I have a function that gets the columns in an assoc list. Its working fine except for the very large size of list around 10 million. I gets a huge memory allocated when I profiled it....
View ArticleSKILL code to replace various IO Pads based on the center coordinates of...
Hello, I have an IO pad ring in which various IO pads are placed from an older library. Now I have to replace all IO pads with a New IO library where all new IO pads have reduced dimensions.I have to...
View ArticleHow to use the Orcad Capture TCL command to find Objects connect by a...
Hi All,I`m trying to get the objects which are connecting by a wire I select,so I iterate all thing in a page and try to find if there are matching netname with the selecting wire,but it is...
View Articleinclude a model files for nmos and pmos into virtuoso
HI all,how can I include a model files for nmos and pmos into virtuoso like the one which is attached. I want to use this model file as it has equal threshold voltage for pmos and nmos. It is needed...
View ArticleHow to set Vth (voltage threshold) for MOSFET?
Hi, Is there a way to set a voltage threshold for MOSFET?For example, I want to set Vth = -6, for PMOS, and Vth = 6 for NMOS. Thank you very much
View Articlesource contribution to PM noise
I am simulating phase noise with a spectre modulated pnoise analysis. I can plot total PM noise at the output using Direct Plot, but I would like to know what noise sources are dominating. Is there a...
View ArticleICCR: toggle exclude for bits of a bus
Dear Sirs,could anyone give me an example on how to exclude a bit of an internal bus in the toggle exclude file for ncelab?For instance, if I useINSTANCE <pathname>:<bus_name>* I exclude...
View ArticleShape void element backoff
I used to be able to build complicated static shapes inside the editor by using the shape void element tool. I could place a block of etch and go to town voiding it manually with other shapes. This of...
View ArticleParameter empty when using cds_srr function
Hi, I have a problem in reading the simulation results using Matlab. The problem is that when I am trying to read multiple parameters, the first one i read it correct but after that all parameters...
View ArticleAllegro Design Entry CIS - "Select entire net does not work on separate pages"
Hi all,I don't know what happened or i did somethings wrong on my schematic.I previously could select a net that was connected by off-page in 2 pages in 1 schematic by "select entire net" then the net...
View Articleproblems opening STEP file in solidworks
I am trying to open a PCB STEP file in Solidworks 2012 SP05. I am running SPB 16.6 so15 latest hotfix.When I export from allegro in AP-203, Solidworks tells me "The file being read in is not a AP203 or...
View ArticleMinarea violation in SOC encounter
Hi, I want to know what "Minarea violation" is, and how can I solve it?? I have 3 Minarea violations in Geometry verifying by SOCencounter... thanks alot
View Articlefunckey
I want to use the keypad home/left arrow etc with funckey. Is there a list of what these keys are called?
View ArticleIntroducing a Random noise source in transient time analysis in PSPICE
Hello! I want to test my system under the influence of noise in transient time analysis. Thus I want to introduce noise into various parts of my system but I don't know how or from where to get a...
View Articleoptions to get commands in layout virtuoso ic615
Hi, Consider i have done operation like placed a mos in layout and made connections.. Now i need commands for that operation. In the sense the command for each step in ciw window or file which has all...
View ArticleHow to set Vth (voltage threshold) for MOSFET?
Hi, Is there a way to set a voltage threshold for MOSFET?For example, I want to set Vth = -6, for PMOS, and Vth = 6 for NMOS. Thank you very much
View ArticleCreating Parametrized Symbol
Dear All,I created a symbol form my schematic which has some parmeters in it.Basically, the schematic has 4 voltage sources ( 4 vdc). The DC voltages are parametred as BIT_0,BIT_1,BIT_2 and...
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