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gaonkc
Joined: 16 Jul 2004
Posts: 107
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 05 Aug 2004 8:40 who can give the flow of custom ic design |
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who can give the flow of custom ic design.
how to use the ic 5.0 of cadence. ?
how to use it to design a small project?
tnx
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piao
Joined: 12 Feb 2003
Posts: 223
Helped: 7
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| 05 Aug 2004 14:57 who can give the flow of custom ic design |
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1. get all the process files from foundry;
2. USe these files to build your library ( for schematic and layout);
3. draw your schematic in cadence;l
4. run simulation using Cadence/ hspice/synopsys etc;
5. draw your layout according to your schematic.
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Hughes
Joined: 10 Jun 2003
Posts: 715
Helped: 85
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| 05 Aug 2004 15:56 who can give the flow of custom ic design |
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5.1 Draw layout
5.2 DRC/LVS verification
6. Layout parameter extraction / Parasitic resistance extraction.
7. Do post-layout simulation.
8. If post-layout simulation reveal some problem, go to step 5 or step 3.
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goodboy_pl
Joined: 12 Mar 2002
Posts: 243
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| 08 Aug 2004 16:35 Re: who can give the flow of custom ic design |
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as I know this topic is posted several times so far; BTW, here is a good answer:
hxxp://turquoise.wpi.edu/cds/
BEST!
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sunking
Joined: 25 May 2004
Posts: 914
Helped: 46
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| 09 Aug 2004 2:12 Re: who can give the flow of custom ic design |
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| The first thing is SPEC. then flow 1 to 8
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Jayson
Joined: 08 Oct 2001
Posts: 457
Helped: 17
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| 09 Aug 2004 3:14 Re: who can give the flow of custom ic design |
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are there any places which can do CMOS 0.25 or even larger cheaply and package it too? Sometime ago I read that prices have fallen down to the level where hobbyists can create custom ICs, and I just wanted to know where?
- Jayson
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rajesh13
Joined: 07 Jul 2004
Posts: 126
Location: Milky Way
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| 09 Aug 2004 8:57 Re: who can give the flow of custom ic design |
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| Jayson wrote: |
are there any places which can do CMOS 0.25 or even larger cheaply and package it too? Sometime ago I read that prices have fallen down to the level where hobbyists can create custom ICs, and I just wanted to know where?
- Jayson |
yeah, you can check th net. There are some founderies which are doing this kind of work. But they have some rule that whatever you give them for fabrication, they claim some rights over it.
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Colbhaidh
Joined: 10 Aug 2004
Posts: 151
Helped: 16
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| 11 Aug 2004 6:53 Re: who can give the flow of custom ic design |
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| Not sure about this. Most foundries charge 20K USD for 0.25um. If you do not use their libraries they cannot claim any IP rights. Chartered Semi have a freeware type policy - no IP rights to their libraries, TSMC are the opposite. I doubt any hobbiest could afford a chip run in a foundry.
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electronrancher
Joined: 24 Mar 2002
Posts: 479
Helped: 34
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| 20 Aug 2004 6:51 who can give the flow of custom ic design |
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| no but you can run a chip at mosis for $3000 US for about 20 pcs. only rule is mosis does not take the guy off the street - you need to be part of a company or university. probably making up a company (ooh, a pre-IPO startup) is good enough. get incorporated for $20, and call up mosis. they have old cheap AMI processes and very high speed, very expensive IBM processes too.
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