1000 Threads found on edaboard.com: Standard Layout Table
Next-Generation standard layout Viewer
LAVIS is a next generation layout viewer to support large scale data, super high-speed display and multi format. With LSI designs becoming increasingly detailed, the volume of design data is rapidly expanding. Speeding up data display and standardizing data vi
Analog IC Design and Layout :: 12-03-2004 04:06 :: andy2000a :: Replies: 5 :: Views: 3862
i'm actually doing a project that includes the 3-8 decoder. while some of u think a 3-8 decoder has a simple schematic with the standard truth table, which schematic should be
ASIC Design Methodologies and Tools (Digital) :: 11-23-2006 10:37 :: acey80 :: Replies: 2 :: Views: 1856
AFAIK there's no difference to standard layout: the bumping service is done afterwards: 20..25?m isolation layer over the passivation, window etching down to the pads, bump metalization by electro-plating, (flip chip bonding).
Each bonding pad needs an ESD structure which can stand the necessary electro-plating current (10..50mA).
Analog IC Design and Layout :: 01-12-2010 04:46 :: erikl :: Replies: 1 :: Views: 654
or just type this into google:
"standard atmosphere formula"
Without the quotes and you will many more links.
Professional Hardware and Electronics Design :: 06-17-2003 11:51 :: C-Man :: Replies: 5 :: Views: 956
Like any FF, It depends on its' truth table for its' function.
Usually D-FF's are clocked. The main thing is the output usually follows the input after its' clocked.
A standard truth table is...
As you can see, If D is high Q+1 (the +1 = after clock) (...)
Electronic Elementary Questions :: 05-09-2004 11:54 :: WA :: Replies: 7 :: Views: 2240
can you express clearly?
gds2 is one standard layout format,
normally LVS is compare layout and schemetic
DRC is design rule check for layout
ASIC Design Methodologies and Tools (Digital) :: 05-23-2006 02:37 :: tarkyss :: Replies: 4 :: Views: 848
GDSII is a standard for layout file.
PLD, SPLD, GAL, CPLD, FPGA Design :: 10-12-2006 12:19 :: hr_rezaee :: Replies: 5 :: Views: 1277
i am currently using Orcad 9.1 version
Its a standard 100-pin PQFP Package.
You shouldn't need to make a custom footprint. The footprint for the 100-pin PQFP should be in a standard layout library QUAD.llb
PCB Routing Schematic Layout software and Simulation :: 06-27-2007 16:40 :: kender :: Replies: 6 :: Views: 1447
Her is an IE3DLibrary project with the patch radius as a tuning variable. You can modify the model with the inset feed's dimensions as tuning variables. It is hard to define the tuning variables in the standard layout editor MGRID while you can achieve it easily using IE3DLibrary.
Electromagnetic Design and Simulation :: 07-20-2007 11:23 :: jian :: Replies: 12 :: Views: 1333
Sometimes you need to flatten a PCELL in order to edit it to fit in an odd shape. PCELLs are the standard layout views that you instance from your technology library. For instance, if you instance a PMOS from your library, you are unable to edit the shape of the cell. Flattening is often used in digital design where you would like to minimise the s
ASIC Design Methodologies and Tools (Digital) :: 05-05-2011 03:41 :: eklikeroomys :: Replies: 2 :: Views: 613
This is not symbol from standard ASCII table. Check Your regional/code page!
Microcontrollers :: 03-23-2012 07:25 :: tpetar :: Replies: 3 :: Views: 381
Hi, thanks for all the information . I am trying to study and understand the cable size to current carrying capacity table but it seems that different readings are given by different sites. Is there a standard /fixed table?
Electronic Elementary Questions :: 01-23-2013 22:26 :: Sunny55 :: Replies: 10 :: Views: 1027
Your datasheet shows a straight-line for Characterstics curve.
Straight line has equation y=mx+c
slope (Δy/Δx) = (2.970-0.990)/(90-30) = 0.033 // from standard characterstics table.
check with substitutions,
c = 0
c = 0
Both of passing throu
Microcontrollers :: 08-23-2013 07:01 :: Raady Here :: Replies: 3 :: Views: 336
I am a beginner in standard cel layout.I have observed the presence of Tap but not sure of its purpose.Can anyone letme know the importance of tap.Would appreciate if the purpose of other layers such as metal,poly,active region,contact,via is explained.
Waiting for a reply.
Thanks in advance
Electronic Elementary Questions :: 06-15-2006 03:54 :: ukint :: Replies: 1 :: Views: 1422
Really strange question.
A mos is a 4 terminals devices: gate, drain, source and bulk.
What we call "tap" in layout is the bulk connection. It's for that you always have substrate tie and nwell tie in a standard cell.
As the others reply you need to go back or simply go to the basics to understand why a mos is a 4 terminals devices.
Analog IC Design and Layout :: 06-22-2006 22:57 :: franck :: Replies: 9 :: Views: 1706
hi actually there are some guide lines provided by mosis foundary for design of standard cells in sub micron technologies you can find the document in mosis.org->design flows
hope this helps
Analog IC Design and Layout :: 11-27-2006 00:58 :: JVNPAVANKUMAR :: Replies: 6 :: Views: 2060
I am just wondering why in many standard cell library in an inverter layout the gate is not straight rather like a snake. What is the advantage of this structure???
Analog IC Design and Layout :: 04-24-2007 21:52 :: drabos :: Replies: 7 :: Views: 1520
hai frnds. how to design standard cell layout.any one send material for that
ASIC Design Methodologies and Tools (Digital) :: 02-19-2009 03:54 :: vamsi_addagada :: Replies: 3 :: Views: 703
Is there a layout tool to pass from standard form to real form ?
Because i work with TANNER, so i have only the standard form layout (Example:rectangle poly and rectangle diff).But in rality when we concept a circuit, the form is not rectangle.
Thanks for help
Analog IC Design and Layout :: 10-19-2009 07:36 :: fasto2008 :: Replies: 0 :: Views: 564
I am in the process of creating a set of standard cells to be used in larger designs. I currently have the spice netlist models of these cells, and have performed library characterization to generate the .lib and .db library files.
Now, I would like to generate the layout of these cells, hopefully without having to manually lay out ev
ASIC Design Methodologies and Tools (Digital) :: 07-21-2010 11:09 :: Lightning19 :: Replies: 3 :: Views: 577
I am planning to do some custom digital cells which I want to use in auto place and route along with the Faraday standard cell library.
I have got some idea from the document "FSC0G_D_Library_PR_layout_Guide_v1.0.pdf"(attached) for 130nm standard cell place and route.
It will be very helpful if I can get access to the (...)
ASIC Design Methodologies and Tools (Digital) :: 08-27-2010 17:21 :: pd :: Replies: 0 :: Views: 927
I'm working on a control for a humidifier. As per UL standard UL998 a spacing of 6.4mm is required. I'm doing the PCB layout.
"The spacings between wiring terminals of opposite polarity, between a wiring terminal and an
uninsulated non-current-carrying metal part, or between a wiring terminal and uninsulated live part of
opposite polarity shal
Professional Hardware and Electronics Design :: 12-08-2010 15:39 :: oh-lectro :: Replies: 0 :: Views: 1061
For a certain reason the layout of a synthesized digital block was done with VCAR in virtuoso (and not with Encounter).Now I have done a post-layout fix using ECO which has generated a new verilog netlist and would like to apply the fix on layout working on Encounter.
As it is a post-layout fix and cells cannot be (...)
ASIC Design Methodologies and Tools (Digital) :: 07-23-2012 09:12 :: trinaamp :: Replies: 0 :: Views: 443
There is no "standard". Depends on stackup.
As for UART: TX and RX do not form a differential pair, rather the contrary.
PCB Routing Schematic Layout software and Simulation :: 10-24-2013 13:22 :: Ice-Tea :: Replies: 6 :: Views: 298
actually i want to study all aspects of standard cell layout design like tracks, pitch, grid, high performance, high density etc, so please suggest me some suitable docs or links..
thanks in advance
Analog Circuit Design :: 05-21-2014 02:26 :: ms_90 :: Replies: 2 :: Views: 155
Is there any standard for exchange of analog IPs?
ASIC Design Methodologies and Tools (Digital) :: 02-01-2003 06:37 :: Humungus :: Replies: 5 :: Views: 1278
The libraries are third party supplied and not supported by TI in any way.
I may not be alone, but I prefer to make my own library parts and use a standard for building them up and layer assignments etc.
Third party libraries are OK, but i do not know any professional PCB designer that was ever happy with a standard footprint :D
PCB Routing Schematic Layout software and Simulation :: 12-26-2003 21:03 :: Frosty :: Replies: 3 :: Views: 1170
This may be old news but ORCAD does contain this package in it's standard library.
You have to look it up in the book called, "Orcad layout Footprint Libraries". The book can be found posted in another forum.
Pretty much all packages, (unless a custom part), can be found in Orcad. The problem is sea
PCB Routing Schematic Layout software and Simulation :: 05-03-2005 22:06 :: jhallows :: Replies: 7 :: Views: 5624
I think the actual release of the PC Card (=PCMCIA) standard is v8.0 ?
So is it an old version you are looking for ?
btw: you can do download v7.0 in MCU fileman:
Specifications/PC Card standard v70.zip
for v8.0 see here:
PLD, SPLD, GAL, CPLD, FPGA Design :: 02-21-2004 07:48 :: M!k :: Replies: 5 :: Views: 3548
Hi gentle_man & khouly,
so u mean to say that first i convert the VHDL code to gate level using a tool like leonardo. then use place & route tool of the vlsi layout software to get the required layout?
also the cell library which u mentioned. i use tan*ner l-edit, s-edit ,etc. we have a standard cell library in school. would these be (...)
ASIC Design Methodologies and Tools (Digital) :: 03-31-2004 11:41 :: lithium :: Replies: 16 :: Views: 2611
AWG=American Wire Gauge standard
Gauge Diam Area R I at 3A/mm2
AWG mm mm2 ohm/km mA
46 0,04 0,0013 13700 3,8
44 0,05 0,0020 8750 6
42 0,06 0,0028 6070 9
41 0,07 0,0039 4460 12
40 0,08 0,0050 3420 15
39 0,09 0,0064 2700 19
38 0,10 0,0078 2190 24
37 0,11 0,0095 1810 28
Electromagnetic Design and Simulation :: 03-31-2004 08:18 :: me_nitingoyal :: Replies: 2 :: Views: 938
You must have it in the build-in library, if you have installed the completet product. Any way if you are working with non-standard component it is better to design padstack by yourself.
Analog IC Design and Layout :: 05-22-2004 01:35 :: mami_hacky :: Replies: 6 :: Views: 2151
do any one know how change the layout file in Virvtuoso to others file type like .jpg or .gif ?
thx for ur help!!!!
Linux Software :: 05-25-2004 00:41 :: tok47 :: Replies: 6 :: Views: 1501
has anyone here ever used the standard cells in tsmc libraries in high speed designs? tsmc libraries are characterized for a top speed of around 600 mhz but realistically these cells can run much faster some libraries can even run twice as fast as the rated speed. the trick is to simulate and check timing by some other method such as spice simulati
Analog Circuit Design :: 06-29-2004 23:26 :: rakko :: Replies: 3 :: Views: 1085
I understand that STA before P&R is meant to highlight the crtical paths of the design for corrective actions and also give an estimation of the delays. These delays are formulated through the accounting of standard cell delays and wire delays.
However, how is post layout STA different form this. Is it because of the addition of buffers in the C
ASIC Design Methodologies and Tools (Digital) :: 07-20-2004 10:51 :: giggs11 :: Replies: 4 :: Views: 2077
let me add one more question...what are the important things to be kept in mind while laying out of standard cells...
ASIC Design Methodologies and Tools (Digital) :: 07-22-2004 13:37 :: amarnath :: Replies: 3 :: Views: 633
that is interesting to me - i don't do digital. (in fact, i think you are in the wrong forum, but who cares!)
are you saying that synopsis can route a standard cell layout from vhdl?
i used a free program called electric which can channel route standard cells from STRUCTURAL vhdl, but cannot convert behavioral vhdl into structural. (...)
Analog IC Design and Layout :: 09-26-2004 17:05 :: electronrancher :: Replies: 8 :: Views: 1700
Detailled information maybe found in this book :
"High Voltage Devices and Circuits in standard Cmos Technologies"
by Hussein Ballan, Michel Declercq
Analog IC Design and Layout :: 08-23-2004 22:34 :: okguy :: Replies: 18 :: Views: 1916
GDS file is standard of industry. You can import to L_edit the GDS file out put from Cadence, but the technolgy table of Ldedit have to set the same as Cadence (layer number, Layer name, color...) have to be the same, so the look will be the same
Software Problems, Hints and Reviews :: 10-11-2004 16:36 :: tochaHCM :: Replies: 5 :: Views: 1947
Are the anyone can tell me , how to define and use Blind and buried vias in layout plus?
PCB Routing Schematic Layout software and Simulation :: 10-05-2004 00:20 :: jinboqiu :: Replies: 10 :: Views: 3827
If so, you probably have some mistakes to generate layout and the L and W sizes are not equal in schematic & layout.
If you use standard cells, i think so, don't forget to extract SDF (standard delay format) for the cells and simulate the design extracted from layout based on it.
ASIC Design Methodologies and Tools (Digital) :: 11-20-2004 11:33 :: isaacnewton :: Replies: 4 :: Views: 1691
The should be connected as schematic required. But in standard CMOS technology, the bulk terminas of either N or P mosfets (usually N) cannot be connected to different potential.
In layout, the bulk should be as close as to the source. For large current devices, use guarding to prevent latch-up.
The source and drain are usually interchangea
Analog IC Design and Layout :: 12-27-2004 23:42 :: Hughes :: Replies: 15 :: Views: 2112
what is the standard ratio between pad size and pin dimensions for smd components ?
PCB Routing Schematic Layout software and Simulation :: 02-11-2005 07:46 :: redhat :: Replies: 1 :: Views: 1033
first select the software you are going to use,
in normal there will be some standard library avalible,
you can use it for reference.
PCB Routing Schematic Layout software and Simulation :: 02-25-2005 23:25 :: binu G :: Replies: 9 :: Views: 1737
If you meant device noise, you want to use standard geometry devices as they are well described by spice model. This is what's model for. If you deviate from the common geometry, the model becomes incorrect. Then you might or might not get some noise advantage, but all your currents, voltages, gm, etc are not modeled also. You are in completely unk
Analog IC Design and Layout :: 03-15-2005 01:35 :: steer :: Replies: 20 :: Views: 2081
I am using VSdir standcell to build a programmable divider for frequency synthesizer. The VCO clock is around 1GHz.
I constructed the schematic using symbols from the library. Now I need to layout the design (by which I mean connecting the standard cells as the cells are already laid out) . I have 2 choices: use Cadence First Enco
Analog IC Design and Layout :: 03-25-2005 09:52 :: field_catcher :: Replies: 1 :: Views: 687
I need to choose a precise a value of resistor from the datasheet of a vendor. That vendor has provided the resistor range with % tolerance. I need to choose an exact value but somehow the detail table is missing, especially for 2% tolerance.
Can anyone provide me with details.
Thanks in advance.
Analog Circuit Design :: 04-22-2005 11:00 :: chanchg :: Replies: 3 :: Views: 1172
well i'm facing problems with layout designing.
tools i'm using: microwind / electric (is there any other free tool for win32 except magic!)
some how able to design standard cell design, but could not able to design
alus/adders/shifter using datapath approach...
need refs/links related datapath layout (and other (...)
ASIC Design Methodologies and Tools (Digital) :: 05-01-2005 03:14 :: umairsiddiqui :: Replies: 0 :: Views: 592
Please get the info's from standard design rules for Rigid boards from IPC
PCB Routing Schematic Layout software and Simulation :: 05-16-2005 08:00 :: amjad :: Replies: 10 :: Views: 4853
Could somebody explain me clearly how to export an inductor layout from Momentum to Cadence Virtuoso? I generated a gds2 file in Momentum and tried to import it in Cadence.
After importing the file, the Cadence reports that the import was successful. However, I can't see the inductor (actually nothing) when I open the layout. I suppose that
Analog IC Design and Layout :: 06-07-2005 10:49 :: estradasphere :: Replies: 2 :: Views: 1206