DXF to GDS-II (or CIF) conversion?

Discussion:

Andreas K. Huettel

2009-03-17 12:17:13 UTC

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Taekyung Kim

2009-03-17 19:16:38 UTC

Permalink

Hi,

I am using LASI to convert files.
You have to first import DXF file to LASI and convert it to TLC file.
Then you can convert it back to GDS or CIF file.

This software is free.

TK

---------- Forwarded message ----------
From: "Andreas K. Huettel" <***@physik.uni-regensburg.de>
To: General MEMS discussion <mems-***@memsnet.org>
Date: Tue, 17 Mar 2009 13:17:13 +0100
Subject: [mems-talk] DXF to GDS-II (or CIF) conversion?
Dear all,

I know this is not a specific NEMS question, but- can anyone here recommend
a
(standalone, reasonably priced) software that converts Autocad DXF to either
GDS-II or CIF?

Our e-beam software does not import anything except these two formats... :(
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ameya g

2009-03-18 18:13:50 UTC

Permalink

Hi

Use Layout Editor to convert to and from CIF, GDS or DXF. The software is
free and can be downloaded from - http://www.layouteditor.net/

The software is very fast and easy to use.

-Ameya

Post by Taekyung Kim
Hi,
I am using LASI to convert files.
You have to first import DXF file to LASI and convert it to TLC file.
Then you can convert it back to GDS or CIF file.
This software is free.
TK

Morten Aarøe

2009-04-03 08:39:47 UTC

Permalink

I agree - Layout Editor is great. However, take care when converting
some complex forms from DXF. I've had problems with conversion of DXF
files from AutoCAD involving rotations of blocks (in my case alignment
marks). For some reason it did not recognize the rotation - could be the
fault of AutoCAD as well, but the end result is that the blocks were in
the wrong orientation in the wrong position...

// Morten

Post by ameya g
Hi
Use Layout Editor to convert to and from CIF, GDS or DXF. The software is
free and can be downloaded from - http://www.layouteditor.net/
The software is very fast and easy to use.
-Ameya

Steven Meredith

2009-04-03 17:34:56 UTC

Permalink

FYI

When exporting an ACAD dwg to dxf, I have always found that using file>save
as>dxf tends to have more issues converting. I prefer to use the old school
command of "dxfout" at the command line. In my experience, this method has
provided better results than the save as method.

sm

I agree - Layout Editor is great. However, take care when converting some
complex forms from DXF. I've had problems with conversion of DXF files from
AutoCAD involving rotations of blocks (in my case alignment marks). For some
reason it did not recognize the rotation - could be the fault of AutoCAD as
well, but the end result is that the blocks were in the wrong orientation in
the wrong position...
// Morten

Pavan Samudrala

2009-04-07 15:08:04 UTC

Permalink

Hello all,

Since we are in this conversion discussion, I have a problem and was
wondering if anyone encountered this problem.

I have created some complex shapes using the concept of regions in Autocad.
When I convert the design using PGSort, all the design gets converted except
the regions. Does anyone have an idea of converting these regions into
gds/gl1 format?

Any help would be really appreciated.

Thanks,
Pavan

Post by Steven Meredith
FYI
When exporting an ACAD dwg to dxf, I have always found that using file>save
as>dxf tends to have more issues converting. I prefer to use the old school
command of "dxfout" at the command line. In my experience, this method has
provided better results than the save as method.
sm

--
Pavan Samudrala

George Burns - "I spent a year in that town, one Sunday."
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HENRI FLECHNER

2009-04-07 16:00:09 UTC

Permalink

The problem is that when you are in Gds2 or cid or calma, you cannot convert
all the vertices.

Therefore for example some accute angle ned to be smoothed at the very
beginning.

You can contact me if you want some more information.

Guten Abend.

Henri

Post by Pavan Samudrala
Hello all,
Since we are in this conversion discussion, I have a problem and was
wondering if anyone encountered this problem.
I have created some complex shapes using the concept of regions in Autocad.
When I convert the design using PGSort, all the design gets converted except
the regions. Does anyone have an idea of converting these regions into
gds/gl1 format?
Any help would be really appreciated.
Thanks,
Pavan

Roger Shile

2009-04-07 16:26:40 UTC

Permalink

For GDSII compatibility each region must have a single boundary e.g. No
donuts, but 2 half donuts are ok.

I've used LinkCAD to convert AutoCAD dxf to GDSII which automatically
converts multiple bounded regions into single bounded regions. If the
converter you're using doesn't do this you may have to create only
single bounded regions in your AutoCAD drawing before doing the
conversion.

Roger Shile

-----Original Message-----

Hello all,

Since we are in this conversion discussion, I have a problem and was
wondering if anyone encountered this problem.

I have created some complex shapes using the concept of regions in
Autocad.
When I convert the design using PGSort, all the design gets converted
except
the regions. Does anyone have an idea of converting these regions into
gds/gl1 format?

Any help would be really appreciated.

Thanks,
Pavan

_______________________________________________
Hosted by the MEMS and Nanotechnology Exchange, the country's leading
provider of MEMS and Nanotechnology design and fabrication services.
Visit us at http://www.mems-exchange.org

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To unsubscribe:
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Shao Guocheng

2009-04-07 20:13:56 UTC

Permalink

One thing you can definitely try is using the "find boundary" function in Autocad. after you find boundary for all ur regions (sounds like a lot work, but autocad will do it for u, u just need to select the regions.), u can delete ur regions and all boundaries will be left as polylines.

hope this hleps

Guocheng Shao

--- On Tue, 4/7/09, Pavan Samudrala <***@gmail.com> wrote:

From: Pavan Samudrala <***@gmail.com>
Subject: Re: [mems-talk] DXF to GDS-II (or CIF) conversion?
To: "General MEMS discussion" <mems-***@memsnet.org>
Date: Tuesday, April 7, 2009, 11:08 PM

Hello all,

Since we are in this conversion discussion, I have a problem and was
wondering if anyone encountered this problem.

I have created some complex shapes using the concept of regions in Autocad.
When I convert the design using PGSort, all the design gets converted except
the regions. Does anyone have an idea of converting these regions into
gds/gl1 format?

Any help would be really appreciated.

Thanks,
Pavan
_______________________________________________
Hosted by the MEMS and Nanotechnology Exchange, the country's leading
provider of MEMS and Nanotechnology design and fabrication services.
Visit us at http://www.mems-exchange.org

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