Using Q3D Extractor (Ansys) to Calculate Die Leads’ AC and DC R(resistance) and L(inductance)
Hello everyone, this is Daniel Esmaili. On behalf of the Engineering Corporation, I'm going to show you how to use the Q3D Extractor for calculating parasitic parameters for the die leads.
Introduction to Q3D Extractor
The Q3D Extractor is an application by Ansys used to find parasitic elements of your devices. It is useful for:
- High-speed electronics
- Electric power distribution
- Power electronics
About Us
We are Ozen Engineering, Inc., an Ansys Elite Channel Partner. We have been America's channel partner for three years, selling Ansys software for mechanical, thermal, fluid, and electrical applications. Our services include:
- Training
- Mentorship
- Consulting
We have three offices in North America. Contact us for more information.
Setting Up the Geometry
This is the initial geometry. To make it more industry-relevant, I added bond wires and modified the die. One die has four bond wires, and the other has three. The geometry was created manually, and initially, nothing was assigned except for the copper parts.
Adding Sources and Sinks
- Select the face mode and assign a source with constant voltage.
- Repeat for the remaining parts, resulting in four sources on one die and three on the other.
- Add a sink by selecting the surface at excitation and assigning a sink with constant voltage.
In total, we added seven sources and two sinks.
Material Assignment
Next, assign materials to the geometry:
- Copper: For the leads
- Polyester: For the cover
- Bond Wire and Die: As specified
After assigning materials, right-click on the net and select "Auto Identify Net" to let the software automatically find the nets.
Setting Up the Model
- Right-click to add a solution setup using 1 MHz.
- Select to calculate DC and AC R and L.
- Save the field and leave DC RL and AC RL as default.
Frequency Sweep
- Right-click to add a sweep to the analysis.
- Change to interpolation with a linear setup view.
- Set the frequency range from DC to 0.1 GHz using 400 points, then from 0.5 GHz to your desired frequency.
Running the Simulation
Before running, validate the setup. Once validated, proceed to results:
- Right-click on results and select "Matrix".
- Create a rectangle plot for inductance and resistance.
- Change the x-axis to logarithmic for better visualization.
Conclusion
We calculated the inductance and resistance using the Q3D Extractor. If you enjoyed this video, please subscribe to my channel and hit the bell button. I'll see you in the next video, where I'll showcase more features and capabilities of the software. Good luck, and if you have any questions, please email us.
Hello everyone, this is Daniel Esmaili, and on behalf of the Engineering Corporation, I'm going to show you how to use Q3D Extractor for calculating parasitic parameters for a die. Q3D is an application by ANSYS used for finding parasitic elements of devices.
It can be used for high-speed electronics or electric power distribution and power electronics. Today, I'm going to show you the geometry, setting up the model, sweep frequency, and the results. We are ANSYS, a leading channel partner, and we have been America's channel partner for three years.
We sell ANSYS software for mechanical, thermal, fluid, and electrical applications. We also provide training, mentorship, and consulting services. We have three offices in North America, and here's how you can contact us. Before we begin, let me show you the geometry.
I have created the geometry manually, and nothing is assigned except for the copper part. Next, we need to add the sources. Here, as you can see, they are added. All we need to do is go to the face mode, select the part, and assign the source.
We can name it here, and we're going to use a constant voltage. After that, we'll do the same for the other parts. Once that's done, we need to add a sync. We'll select this surface as an excitation and add a sync here. We'll use a constant voltage. As you can see, once I added that, it adds here.
Now, we have added the seven sources and two syncs. The next step is to add material. They have assigned nothing here, except for the bond wire. So, I added the material here. I have copper, which is this part, the lead.
I have polyester, which is the cover, and then I have the bond wire and the die here. Now that I have added material to everything, I'll go here and on the net, right-click and say "auto-identify net." The software will automatically find the net for you.
As you can see, we have two nets, one is this guy, and the other is this part here. Since our electrically connected, they're all considered as one net, and the software does that for you. That's the beauty of Q3D Extractor. Next, we need to set up the model.
As you can see, there is nothing underneath analysis. So, I need to right-click at the solution setup and use one megahertz here. We need to calculate the DC and AC R and L. So, we choose these two. We also save the field and on the DCRL and ACRL, we leave them as the default for now.
Now, we have added analysis. When we look at the values, we are usually interested in seeing them as a wide range of frequencies. So, we need to right-click and add a sweep to our analysis. Here, we go and change them to interpolation. We have a linear setup view since we want to see from DC.
So, we go with a small frequency all the way to, for instance, 0.1 gigahertz on 400 points. Then, from 0.5, we'll go all the way to two or whatever frequency you are interested in and then hit okay. By adding that, you see the sweep is added here. Now, we can run it to look at the result.
But before doing so, you can go on stimulation and hit "validate." Once that is done, we can go under results and look at the result. The way we do it is right-click on the result and go to matrix, then we can go to the results and look at our rectangle plot.
We use ACRL and select one of these leads and make a new report as you can see it's drawn here for the inductance. I just did the DC as well, the same thing. I added trace, not apply to it, so I add trace here and then close it.
If it doesn't look familiar, it's because the x-axis is not logarithmic. So, when I do logarithmic, I say okay. This is how it looks like. Now, let me show you what the other result looks like. Here, if it doesn't look familiar, it's because you've seen it in logarithmic view.
So, I'm going to change from linear to logarithmic, and this is how the resistance looks like. We can do the same for inductance. This is for the L part. So, as you can see, we calculated the inductance and resistance with Q3D Extractor.
I hope you liked it, and if you liked it, please subscribe to my channel and hit the bell button. I'll see you in the next video. Bye bye. I hope you enjoyed this video, and on the next series of this Q3D, I'm going to show you more features and more capabilities of the software.
I wish you good luck, and if there is any question, please email us.
