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SolvedHow to set ports in this package simulation.

Question asked by wangyiliu99 on Jan 13, 2011
Latest reply on Jan 18, 2011 by HSLEE

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Hello, everyone,

I wanna simulate one package and compare that to the results of the actual measured results.
However, my simulation varies greatly with the measurements. I wonder that
I may fail to set the ports appropriately. Your help is really appreciated!

Please check the attached doc file for details.

I am really a Newbie to EMPro, so please forgive me if my questions are too silly

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HSLEE Jan 18, 2011 9:56 AM
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Hello, Yiliu

Two questions I would like to ask with respect to measurement vs. simulations
1. How do you measure them? Are you using SMA connectors or probe?
2. Is this a coplanar configuration or just single ended?

I would suggest to include all parts of structures in the simulation as much as possible if you like to compare to measured data. Anyway let me know what are the answers for those two questions.

HeeSoo LEE
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wangyiliu99 Sep 24, 2013 3:15 AM
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Hello,

thank you very much for your reply.

1. I measured with the SMA connectors (Before soldering the package to the test fixture, I did the port extension to move the measurement plane from the coaxial interface to the device/package plane.) Therefore, I assumed the measured S parameters to be that of the PKG only.

2. This is a coplanar configuration (as for the test fixture).

Actually, I also did the simulation include almost all parts (excluding the solder bumps, which connect the PKG to the test fixture. I got the info that the to-be-released EMPro 2011 will have solder bump library), unfortunately, the result did not agree with the measurements (VNA measurement of the PKG+test fixture, with SMA connector).

With my best wishes,

Yiliu
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HSLEE Jan 18, 2011 4:19 PM
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If you have the measured data that comes with SMA, then I would setup the simulation that also include SMA - board - pkg and compare it to the measure data without de-embedding if the objective is to compare measured vs. simulated. If this comes out right, then start to de-embed those additional fixture out from the measured and simulated one by one and compare them. This would also eliminate some uncertainty your have with ports (coplanar to TEM).

Yes, EMPro 2011 comes with solder ball libaray which allows users to easily create the bumps/balls. If you want, you can download and try it out fromt the knowledge center.

If you want me to take a detail look, then you could send me the project to hee-soo_lee@agilent.com
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wangyiliu99 Sep 24, 2013 3:15 AM
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Thanks a lot.
I will have a try first and contact you later.

As for SMA connector, are there any libraries, or it is required to draw from scratches?

As for EMPro 2011, at least it is still not available from the Japanese site.
Japanese site has only 2010.07 version.

Thank you again for your help.
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HSLEE Jan 18, 2011 7:27 PM
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Try this url for EMPro 2011 EA download.

https://edasupportweb.soco.agilent.com/portal/page?_pageid=36,40513&_dad=portal&_schema=PORTAL&id=327447

For SMA connector, you don't have to create it from scratch. You can find some connectors from EMPro workshop examples and library.

http://edocs.soco.agilent.com/display/eesofkc/EMPro+Workshop+and+Lab+Exercises
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wangyiliu99 Sep 24, 2013 3:15 AM
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thanks.
as for EMPro 2011,
when I access the link,

Red round back with white cross, Unknown Error!
An unknown error occured.

information appears as the system message. Simply don't know why. I am sure I am logged into the site.

As for SMA, I found it. Thanks again.
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HSLEE Jan 18, 2011 9:05 PM
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I will add you to EA download. Can you tell me what's your knowledge center user id?
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HSLEE Jan 18, 2011 10:14 PM
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The access to download is granted. Would you please try it again?
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SolvedHow to set ports in this package simulation.

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