How to transfer one foundry's GDSII data to another?

[Harryzhu]

Hi,

I wanna transfer one foundry's GDSII data to another one, and I have both
of their design environment, how may I do the conversion? They give stream
in or out map file, so I stream out with foundry one's map file under its
environment, then stream in with foundry two's map file under new
environment, but I get several layers lost.

Someone tell me I should rewrite the map file. I should modify the 'layer
number' and 'layer type' item in foundry one's map file, either I should
change the 'layer name' and 'layer purpose' item in foundry two's map file.
Both of them have more than two hundreds lines, and it's difficult to find
which of them are used in the layout but don't miss everything, it's
difficult to find the corresponding layer number or name for two design
environment. How should I finish it?

I have a question all along, I think there's no more help for those
foundry supplying map file, but why are they supplied to customers? Maybe I
don't know their real usage, or is ignored by me. Who may tell me the
answer? Thanks for your help!

Have a good day!

Best Regards,

Harryzhu

 

[G Vandevalk]

The foundary output GDSII map must contain all of the info needed to
fab the chip. It does not need to contain anything else.

Often fab's will provide additional/different GDSII maps for verification.
(bad practice, but done!)
This often contains labeling data (pin info) and/or obstruction layers
and/or
markers for guiding drc/extract/lvs/fill etc.

It is not in the Fab's interest to supply you with the stuff needed to fab
elsewhere.


I notice you have not said anything about converting
pins/CDF/properties/schematics/devices/arrays/Pcells ...
You are just scratching the surface here ...


Good Luck

p.s. Only 200 lpps ... I only start to worry when it gets over 1000 lpps;^)
....

lpps - Layer Purpose Pairs in Cadence Lingo.

- Gerry Vandevalk www.ictooling.com


"Harryzhu" <harrytone@sohu.com> wrote in message
news:d2veip$280a$1@mail.cn99.com...

Hi,

I wanna transfer one foundry's GDSII data to another one, and I have
both
of their design environment, how may I do the conversion? They give stream
in or out map file, so I stream out with foundry one's map file under its
environment, then stream in with foundry two's map file under new
environment, but I get several layers lost.

Someone tell me I should rewrite the map file. I should modify the
'layer
number' and 'layer type' item in foundry one's map file, either I should
change the 'layer name' and 'layer purpose' item in foundry two's map
file.
Both of them have more than two hundreds lines, and it's difficult to find
which of them are used in the layout but don't miss everything, it's
difficult to find the corresponding layer number or name for two design
environment. How should I finish it?

I have a question all along, I think there's no more help for those
foundry supplying map file, but why are they supplied to customers? Maybe
I
don't know their real usage, or is ignored by me. Who may tell me the
answer? Thanks for your help!

Have a good day!

Best Regards,

Harryzhu

 

[fogh]

Hi ,

What you describe below with map files assumes that gds2 layer numbers are
compatible between foundries. That is a bit too optimistic.

Now, assuming you looked at the request for production documents from both
fabs/technologies and have come up with a gds2 number mapping from fab1 to fab2...
Here is another question: if fab1 has defined the P+ region implicitly, for
instance Pplus=not(Nplus) , and fab2 needs an explicit definition of layer P+ ,
what will happen to pmos'es produced by fab2 using your converted gds2 data that
has no P+ mask ?
So, you need not only to map layers fab1->fab2 , you also need fab1<-fab2.

Also, there should not be hundreds of layers in a gds2 file you send for
production. Or you have a very complete and expensive process.

Harryzhu wrote:

Hi,

I wanna transfer one foundry's GDSII data to another one, and I have both
of their design environment, how may I do the conversion? They give stream
in or out map file, so I stream out with foundry one's map file under its
environment, then stream in with foundry two's map file under new
environment, but I get several layers lost.

Someone tell me I should rewrite the map file. I should modify the 'layer
number' and 'layer type' item in foundry one's map file, either I should
change the 'layer name' and 'layer purpose' item in foundry two's map file.
Both of them have more than two hundreds lines, and it's difficult to find
which of them are used in the layout but don't miss everything, it's
difficult to find the corresponding layer number or name for two design
environment. How should I finish it?

I have a question all along, I think there's no more help for those
foundry supplying map file, but why are they supplied to customers? Maybe I
don't know their real usage, or is ignored by me. Who may tell me the
answer? Thanks for your help!

Have a good day!

Best Regards,

Harryzhu

 

Harryzhu wrote:

I wanna transfer one foundry's GDSII data to another one,
how may I do the conversion?

Where did you steal the original GDSII data from?
Go back to them and steal a schematic.

If you can steal the simulation models, that would be great.
Oh, and be sure to steal the test vectors too!

Once you have all that, resimulate in the new stolen process.
Tweak the component sizes so that the circuit works in the new process.
If you can use stolen circuit optimization tools, that will save you
time.

Once you have the circuit running in the new process, move on to the
layout.
Steal a layout migration tool or two and you'll be done in a jiffy.

Verify after you have the schematic & layout in the new process.
Stolen physical verification rule decks work great!

After that, the new foundry will be glad to fab your 'designs'.

 

Where did you steal the original GDSII data from?
Go back to them and steal a schematic.

Zhu Ying

I just noticed you ALREADY stole the Verilog netlist!
And your standard cells came from Artisan.
So you still need to steal the primitive schematics.
And you need to convert the Verilog to VHDL for your needs.
But, you cracked the license for older Cadence software
(they changed the licensing scheme just after your version).

Also, the entire internet (not just comp.cad.cadence) is
trying to help you with your dumb-ass questions. Many
responses on the other newsgroups sum you up by asking:
"Have you tried the obvious?"

See these related posts by the same guy (Zhu Ying).

"Harryzhu" Mar 8, 7:32 pm
Is there any tool to convert netlist to schematic?

I can only get spice netlist of standard cell from foundry,
but I need to use the form of schematic.

"Harryzhu" Thu, 10 Mar 2005 09:09:39 +0800
Where may I find SE's free training lessons?

I wanna to study SE but it's stuffy to read the openbook,
is there any free training lessons?

"Harryzhu" Thu, 24 Feb 2005 09:06:23 +0800
Subject: Free CAD tools 'Alliance'

I've found one free CAD tool
Has anyone tried it?
I remember there's one small script which can convert
verilog HDL to VHDL, doesn't it? But I cannot find it now.

"Harryzhu" Tue, 22 Feb 2005 09:37:43 +0800
Where to find skill documents?

I wanna study skill, but learning openbook is so stuffy

"Harryzhu" <sohu.com> Wed, 6 Apr 2005 11:26:15 +0800
How may I modify the start script in this type?

I come to one new firm and help to update the IC design environment
I transfer the source design tools to new machines and share them,
but when I need to update, I meet some troubles.

"Harryzhu" Tue, 8 Mar 2005 18:55:14 +0800
How could I backup 200G data on one LTO-1 tape?

I'm using HP Ultrium 215 to backup data with LTO-1 tape,
but I can only backup 100G data on the tape.

"Harryzhu" Fri, 11 Mar 2005 18:39:11 +0800
I wanna transfer one library to another different foundry

I have one finished library, and wanna transfer it to
another different foundry.

Hey Zhu,
I could go on, and on, and on.

Where did you steal the chip design data from?
Where did you steal the software from?

I suggest you create a brand new Internet persona to obtain your
stolen designs & stolen software from the hardworking people
on comp.cad.cadence and elsewhere.

IP Address: 61.152.135.78
Location: China [City: Shanghai, Shanghai]
inetnum: 61.152.132.0 - 61.152.135.255
netname: SHANGHAI-DATA-SOLUTION-CORP
descr: Shanghai Data Solution Co.
country: CHINA
admin-c: ZY108-AP
tech-c: ZY108-AP
mnt-by: MAINT-CHINANET-SH
changed: @mail.online.sh.cn 20030317
status: ASSIGNED NON-PORTABLE
source: APNIC
person: Zhu Ying
address: F18,819 West Beijing Road,Shanghai 200081
phone: +86-21-52128580
fax-no: +86-21-52128566

 

IP Address: 61.152.135.78
Location: China [City: Shanghai, Shanghai]
inetnum: 61.152.132.0 - 61.152.135.255
descr: Shanghai Data Solution Co.
person: Zhu Ying
address: F18,819 West Beijing Road,Shanghai 200081
phone: +86-21-52128580
fax-no: +86-21-52128566

Does any of this strike a bell?

Shanghai Data Solution Co., Ltd.
Shanghai Pudong Software Park
498 Guoshoujing Rd
Room 3301-3309, Room 3302-3306, Room 3313
Zhang, YouQiang
Telephone:021-50800818-118
Fax:021-50800926
Handphone:13601691374
Email: mancozh@21cn.com