Hello

Let me start this with a 30 sec video

**Well …. That’s glitch … Plain and simple !!! 🙂**

Ahhh…. It’s a pain … right !! I can tell you exactly, why the above happens. Stay with me!!

**On a circuit, fabricated on silicon, there are trillions of wires packed in a small area**, something like below, and as me and you demand for **higher speed and huge number of applications, poor engineers [:(] try to pack even more devices and wires in that tiny area**

**Imagine a situation, where, in a room of size of about 20 people, you put 50 people, and all 50 people talk!!**

No 2 people can have a **meaningful conversation**, as they will be disturbed by what others are talking.

Now put the below **little 2 wires into the above situation and, imagine what the wires go through**.

** They interfere with each other, through the coupling capacitor**

**The stronger wire, is given the name “Aggressor (A)” and the weaker wire is given the name “Victim (V)”.**

Let’s take a case, **where ‘A’ switches and ‘V’ is silent**, like below

When we say** “rise transition”**, it actually means, **we are charging some capacitance**, **and the amount of charge the capacitance has, decides its logic value.**

**A fully charged capacitor, will be called ‘logic 1’ and an empty or discharged capacitor will be called ‘logic 0’.**

Unfortunately, the wires here are so close, that there is another capacitance between them, and along with charges on C1 and C2, the amount of charge on Cm will also play a crucial role in deciding whether ‘V’ is at logic ‘1’ or ‘0’.

And that’s exactly what happens. The **rising transition of ‘A’, charges Cm to such a level, that, for a moment, at ‘V’, the voltage rises**.

**And this is called a ‘rise glitch**‘. **This glitch can be so strong, that it might just change the functionality of the system**, and I will come back on this in my next post. You know what !!

This is just the first level analysis that I shown. I will come back with a detailed analysis of this glitch and show you, that we do not have to worry, yet.

Remember the famous quote from Richard Sloma **“Never try to solve all the problems at once — make them line up for you one-by-one”**

Thanks

Kunal