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gabi71ro
Joined: 03 Sep 2003
Posts: 24
Helped: 1
Location: Iasi Romania
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 26 Jun 2006 11:08 Re: What is the best layout editor? |
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Virtuoso (w/wh XL) is good. Just good.
Laker have a lot of new tipps that can help you a lot, depending of what kind of license you have (L1,L2 or L3). Averrage.
Now I saw a presentation of Cadence 6.1 (will come in 2007-2008).... the next generetion......
Is more than expected. This will be definetly the best Layout / schematic / verification tool! A lot of features that will help you to design more secure and acurate!
Enjoy!
Gabriel.
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gharuda
Joined: 30 May 2006
Posts: 46
Helped: 3
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| 27 Jun 2006 7:06 Re: What is the best layout editor? |
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Iam using Tanner EDA tools 10.12 version it good tool. as most big companices use tanner for layout.
Microwind is also good but not good as compared to Tanner.
Cedence is cheaper compared to Tanner.
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gabi71ro
Joined: 03 Sep 2003
Posts: 24
Helped: 1
Location: Iasi Romania
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| 27 Jun 2006 10:20 Re: What is the best layout editor? |
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I saw that some people said that virtuoso have many crashes and lake not.
I'm not agree.....
Laker have problems....after crash.
Let say select "net function". You can select a net from the top, and you will obtain a "temp" cell with the entire net (down in hierarchy). This is good, because you can export that net(or nets ) in gds and to run different analises...cross-talk, critical path delay, of course parasitics....With this function also you can extract the power/ground plan, in order to check for power dropp, stared ground and other...
BUT if your chip is big enough....this function will crash laker after a few minutes.
(But this select net....is bed also in Virtuoso.....in some revisions just don't work....or haven't a stop layer and the selection will go down from metals to diffusions and up again trough diffusion so you will select everithing but not a net)
Now, when laker crash, you will have a lot of problems in having wrtite acces in the library used for extract, and in all cells from that library.
They haven't a function like Design Recovery.
Also when two engineers work on the same libraryes, but on DIFFERENT cells (like usual in a project), is possible after saving the changed cells, to see that only one was changed! This is because the file which keep information about all cells in a library can not be write by two users at a time (normal). So the first user who open a cell for edit, will keep the control. The strange thing is that THEY fixed this problem in a way....but still act in random.
On the other hand, Laker is good not only for block level design, but also for chip level.
To prepare a reticle with laker mean somthing!
Personaly I used laker for IC up to 28E+06 transistors (not gates equivalent) and for reticles around 100E+06 transistors with a gds size around 2.1 Gb.
More...let us talk about (sex?) Virtuoso stream in / out when a big design (NOT FLATENED) with dummy layers added inside (for layer density coverage) is exported and the gds size is bigger than 400Meg.....You will see that after import (stream in), your cells will be shifted from the origin (0,0) .....nice, didn't it? And if the fab doesen't check...you will obtain something...but not a chip.
If you export a gds with laker...let say 2Gb gds file, and you will import in Virtuoso and also in laker (back for check), you will have a nice surprise...everithing is correct in both tools. Conclusion....Stream Out from Virtuoso don't work properly for big designs.....Of course....you can work around...to export two or more small gds files with Virtuoso and to put all togather in a TOP gds using scripts.....
But why to use scripts?
So, Virtuoso is good, but let me to be fair.... Cadence still need to improve Virtuoso and icfb.
Laker is good too, but like other tools, is not perfect (and is "new" on the market!!!! not like Cadence!!!)
Enjoy!
Gabriel.
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Litz
Joined: 28 Jun 2006
Posts: 11
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| 28 Jun 2006 5:38 Re: What is the best layout editor? |
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Hi All,
I used LEDIT and Silvao Expert, i think it will depend on how exposed are you on the given tool. Both tools are good and powerfull. They have enough power to do the rewuired task, however Virtuoso is famous and it always the skills sought by other companies if you apply for another Job.
I might as well try to use VIrtuoso and Laker, i heat a lot of good things about this tool.
Hi Lensky, nice post.
Regards
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greenhand
Joined: 28 Jun 2006
Posts: 11
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| 28 Jun 2006 8:23 Re: What is the best layout editor? |
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| L editor
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hehongyu2001
Joined: 07 Mar 2006
Posts: 7
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| 28 Jun 2006 10:27 Re: What is the best layout editor? |
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| l-edit is my choose.
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gaoyanli
Joined: 29 Jun 2006
Posts: 4
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| 29 Jun 2006 10:05 Re: What is the best layout editor? |
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virtuoso
vxl ( with some bugs exist and some constrains but useful)
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PitBull
Joined: 22 Jun 2004
Posts: 11
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| 29 Jun 2006 10:07 Re: What is the best layout editor? |
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| I would go with L-Edit. Microwind is the best learning tool though.
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truebs
Joined: 21 Jan 2005
Posts: 322
Helped: 19
Location: Asia
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| 29 Jun 2006 10:15 Re: What is the best layout editor? |
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| Virtuso is good but i like free tools with source code most like MAGIC
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cloudliu
Joined: 19 Jul 2004
Posts: 26
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| 30 Jun 2006 23:35 What is the best layout editor? |
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| Virtuoso intergrates with other tools is easy,but laker is more efficient.
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iocx
Joined: 26 Jun 2006
Posts: 16
Helped: 1
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| 01 Jul 2006 15:23 What is the best layout editor? |
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| Virtuoso is my choice.
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jjohn
Joined: 17 Jun 2006
Posts: 275
Helped: 26
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| 01 Jul 2006 16:03 Re: What is the best layout editor? |
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| Protool ... Orcad not bad .... Pads also good....
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amara
Joined: 06 Apr 2006
Posts: 34
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| 04 Jul 2006 11:11 Re: What is the best layout editor? |
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virtuoso and L-edit
Added after 3 minutes:
virtuoso and L-edit
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cretu
Joined: 12 Nov 2003
Posts: 140
Helped: 4
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| 05 Jul 2006 7:48 Re: What is the best layout editor? |
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Virtuoso and L-edit are the best.
For gabi71ro: did you have all blocks in Virtuoso with the same (0,0) origin?
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redswat
Joined: 20 Dec 2002
Posts: 13
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| 05 Jul 2006 10:39 What is the best layout editor? |
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| Laker,it's the best one
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hltong
Joined: 29 Apr 2006
Posts: 10
Helped: 1
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| 05 Jul 2006 13:50 What is the best layout editor? |
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| I think Laker is better than virtuoso . when layout standcell , Laker is easy to deal whith .
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youyang
Joined: 17 Mar 2006
Posts: 40
Helped: 4
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| 07 Jul 2006 6:05 Re: What is the best layout editor? |
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i use virtuoso
any body use mentor's layout tools?
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cretu
Joined: 12 Nov 2003
Posts: 140
Helped: 4
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| 07 Jul 2006 7:05 Re: What is the best layout editor? |
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| I used it. It's a good tool but maybe because I used mostly Virtuoso and L-edit..I vote for those 2
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loosin
Joined: 18 Apr 2005
Posts: 3
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| 08 Jul 2006 9:06 What is the best layout editor? |
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| I think the virtuoso is better!
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chungming
Joined: 23 Mar 2006
Posts: 94
Helped: 7
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| 11 Jul 2006 0:25 Re: What is the best layout editor? |
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I use both Virtuoso & laker
i think laker is better~~~!!
because using laker layout is quick
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eda_freak
Joined: 20 Jun 2005
Posts: 67
Helped: 9
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| 11 Jul 2006 9:33 Re: What is the best layout editor? |
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| Virtuoso is far better..with stabillity and gud no of options and skill interface..
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rahultcd
Joined: 29 Nov 2006
Posts: 37
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| 11 Jan 2007 7:38 Re: What is the best layout editor? |
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| virtuso / virtusoXL .. best
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locos
Joined: 11 Jan 2007
Posts: 11
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| 11 Jan 2007 10:19 Re: What is the best layout editor? |
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| I've heard there are open source layout editors downloadable for free. Are they any good? Can someone share their experiences on this?
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ecad78
Joined: 13 Jan 2007
Posts: 1
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| 13 Jan 2007 20:42 Re: What is the best layout editor? |
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| locos wrote: |
| I've heard there are open source layout editors downloadable for free. Are they any good? Can someone share their experiences on this? |
There are several out there., a couple on sourceforge. http://layout.sourceforge.net/links/index.html lists most of them. LayoutEditor has nice features and good for MEMS work but can't cope with large designs. Toped has limited functionality. Glade is good (listed as a broken link but isn't) and runs on windows, linux and solaris. Electric is showing its age.
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butterfish
Joined: 26 Oct 2005
Posts: 124
Helped: 6
Location: china
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| 16 Jan 2007 3:43 Re: What is the best layout editor? |
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| virtuso!
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swathi.kamath
Joined: 12 Jan 2007
Posts: 14
Helped: 1
Location: India
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| 16 Jan 2007 4:06 Re: What is the best layout editor? |
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Believe me.. Virtuoso is the best...
Warm regards
Swathi
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tarun_taurus
Joined: 15 Feb 2005
Posts: 28
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| 17 Jan 2007 10:55 Re: What is the best layout editor? |
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well as i see Editors can be any.. its the LVS etc. part(later stage) which is important....and cedense is gud in that..
but if u have worked on magic, default visuals of cadences will look v.bad.... 
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elektronixs
Joined: 03 Oct 2006
Posts: 11
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| 18 Jan 2007 3:59 Re: What is the best layout editor? |
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| Cadence Virtuoso is still the best for me...
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abhijit_kumar1
Joined: 18 Jan 2007
Posts: 4
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| 18 Jan 2007 11:26 Re: What is the best layout editor? |
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| I also think laker is good for u.
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budzz
Joined: 31 Jan 2008
Posts: 27
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| 23 Apr 2008 8:46 Re: What is the best layout editor? |
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if you see from the price, I think it is virtuoso.
does anyone know hom much the latest version of virtuoso is?
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