RLCG Calculation for a Return Path using Q3D Matrix Reduction
Hello everyone, this is Daniel Esmaili. On behalf of Ozen Engineering, Inc., I'm going to talk about Q3D. This is another video in the Q3D series. In the last video, we discussed joining connections in series. This time, we're going to talk about the return path and how to use matrix reduction to achieve that goal.
Overview
To simplify the process, we created a die as a copy of a larger one and cut the connection between the dies. As you can see, this is the new part. In the last video, we only covered these two sections, but now we'll have a more extensive network and assign sink and source. Please refer to the previous videos to understand how that works.
Test Requirement
There is a need for a test because sometimes designers want to see a return path for their design. A simple version of this involves taking only this part and connecting the highlighted sections together. Assume these two at the end are the connection between the dies and the new one, and we are going to connect them together.
Current Path
- One path for the current to go back is during this other one.
- This will be parallel together, forming the return path.
That's what we're going to show you today.
Model Description
This is the model. If I show everything, it is part of a bigger model. Here are the different components:
- Big die
- Small die
- Four different sections
We named them lead three, two, and one. The third one is the small die. As you can see, we have only the original matrix, which is already solved. When we click here, you see only the original on this menu, regardless of whether I choose DC or AC.
Procedure
- Go to the new model.
- Make lead one and lead two in parallel.
- Create the lead 3D return path.
- Choose the parallel leads (lead one and two) and save and close.
- Add a return path, save and close.
Now, we have these joining in parallel. We can check them out in our matrix. The second part of this tutorial involves:
- Viewing the matrix in AC or DC.
- Observing the joint parallel configuration.
Technical Details
If you want to look at the self-inductance, these are the self-inductance values and resistances. You can check for different frequencies and see them in AC or L.
Conclusion
I hope you liked this video. Please let us know if you have any questions. Ensure you're not confused between the names here; for example, lead one-one is 1.57, whereas the original is 3.44. The meaning of lead one-one is different in the original versus in parallel, which is why we need to be careful with the names.
If you have any questions or need software consultation, please feel free to reach out to us. We have three locations in the United States and cover many states.
RLCG Calculation for a Return Path using Q3D Matrix Reduction Hello everyone, this is Daniel Esmaili from Ozen Engineering Corporation. In this talk, I will discuss Q3D. This is another video in the Q3D series, where we previously discussed joining connections.
This time, we will talk about the return pad and using matrix reduction to see how we can achieve this goal. To make it simple, we made this die a copy of the bigger one and cut the connection between the dies. The new part consists of only these two sections, as shown in the last video.
We will have many more nets assigned sink and source. Please refer to the last videos to see how this works. A needed test is a return pad for some designs. A simple version of this is shown below, where only this part is taken, and the highlighted part is connected together.
Assume these two at the end are the connection between the dies and the new one. We will connect the two together, so this is one path, and the current wants to go back during this other one. That's the path for the current. This will be parallel, and this will be the return path. This is the model.
If I show everything, this is a part of a bigger model. Here, we have different things, such as the big die, a small tie, and four different sections. We named them lead 3, 2, and 1. In this part, we have only the original matrix, which is already solved.
We will go to the new model and make lead 1 and lead 2 parallel. Then, we'll make lead 3 the return path. First, we need to choose the parallel one and join them in parallel. Next, we say "return" and save and close. Now, we have these joining parallel, and we can check them out.
The second part of this tutorial is the matrix. We go to AC or DC and see the joint parallel. As you can see, lead 1 1 is here as well as here. This is the new one, which didn't exist before. If you want to look at the self-inductance, this is the self-inductance, and these are the resistance.
We can check for different frequencies in AC or L. I hope you liked this video. Please let us know if you have any questions. Make sure you're not confused between the names.
Late one one, as you can see, is 1.57, while the original one is 3. 44. The meaning of late one one is different from the original one in parallel, and that's why we need to be careful for the name. I hope you enjoyed this video.
If you have any questions, please contact us through our software consultation. We have three locations in the United States and cover many states. Thank you for watching, and have a great day!
