Why Reverse Bias Diode and N-Diode in Antenna Effect - English Version

[@venkatasaikarthikvaranasi7303]

Sir, You explained in gentle manner and the subject which you delivered is easily understandable ... Really yours is Excellent Work. Thank you.!!

[@analoglayout]

Ur welcome , thx for the support

[@mohammedafzal534]

Very well said! Good one upload more & more videos

[@Nandhakumar.9229]

Thank u sir for giving access to the pdf

[@sivaparvathi814]

very good explanation. thank u

[@shivagansham8958]

Hi Sir, your explanation is really nice, one question, why do we some time add multiple antenna diodes on a singe net to fix the antenna effect.

[@analoglayout]

Once your layout is done , you have find a optimal place to keep diode , just think about collateral DRC and LVS issues , it's not so easy to modify your layout .... So u need time

[@nagoorshaik1627]

hi , once the diode is in reverse breakdown region to discharge charges then will return to normal reverse bias region or not ? because if it is in breakdown how it will avoid discharging of actual signal even if temperature changes as you said operating temperatures and fabrication temperatures. can you please make one video or comment on this?

[@rameshrammi2483]

Will that physical connection of reverse break down n-diode will present after fabrication?. If present, will that not impact normal operation?

[@manojgutha5686]

You mentioned at 2500v reverse bias diode will work...but in that case at higher voltages metel may melts right??

[@analoglayout]

At the time of fabrication , all the device's and metal will be at almost 1400 to 2700°c , so all the device's are thermally unstable , so we don't want huge reverse breakdown voltage , even Little voltage will break the junction ....

[@manojgutha5686]

@@analoglayout thank you, one more question ,how much positive voltage will accumulate during plasma etching and what is range of reverse breakdown voltage for diode we were using??

[@analoglayout]

We cannot calculate , exactly how much will generate .... When device is in particular range of temperature we can define reverse breakdown voltage , if the device is in too much high temperature even small voltage can break the reverse junction

[@manojgutha5686]

@@analoglayout thanks for replying....I watched plasma etching video also but I didn't get why only positive charge is accumulates on metal during etching process even though plasma is neutral???? Someone asked the same question and you suggest to watch the plasma video and I watched but sorry I didn't get....can you please give me answer?

[@analoglayout]

I said positively charged ions , not positive charges .... In side plasma both +ve - ve charges will be there

[@user-ep4hz6nq5y]

But for pn junction diode if the reverse voltage reaches the reverse breakdown voltage , the diode gets damaged. Then how we can we use pn junction diode?? Are antenna diodes and normal pn junction diode same ???

[@analoglayout]

It's a normal on junction diode , and even if it's damaged during fab , that will not affect out original chip functionality , this will protect out chip from antenna problem during chip fabrication time

[@user-ep4hz6nq5y]

@@analoglayout Ok Sir ,Thanks a lot

[@harshakanamarlapudi1681]

Can we use mos diode also to avoid antenna effect?

[@analoglayout]

No , antenna diodes are different from typical diode

[@himanshupatra1991]

@@analoglayout So, what are the types of antenna diode? any documentation of NAC/GNACs?

[@mounimounika1876]

Sir stick diagram and netlist formation video cheyandi sir

[@SrinivasSatti-g4q]

why we always take reverse bias in antenna insertion

[@ramakrishnamannam2730]

sir how charges will accumulate while doing etching please tell me sir

[@analoglayout]

Pls watch dry etching video or plasma etching video in our chennal

[@suresh6518]

Thank u sir

[@shrikantbp]

hi How can you say after plasma etching the chargers are positive only ???

[@analoglayout]

Positively charged ion

[@analoglayout]

Watch plasma video once , u will understand , simply don't ask questions without watching full or proper videos

[@Tanmoy101]

The reason is simple. In simple words, the surface where manufacture processes take place is grounded. There is no power terminal. Hence, during etching only positive charge is formed in long routes due to the property of "static electricity".

[@manojgutha5686]

@@analoglayout please share the link here about plasma video

[@prabhutechnologiechannel6324]

Please explain me 2nd order effects

[@mrx54000]

what about pmos??

[@analoglayout]

Both mos have antenna effect , n diode u can use for both mosfer , just change the connection

[@avinashpurohit7401]

Thanks Sir

[@ramakrishnamannam2730]

how to calculate Antenna ratio in practically

[@musclepedia123]

If you don't understand my comment then you don't understand what iam trying to tell

[@musclepedia123]

Not so useful..

[@analoglayout]

if ur not able to understand this , ur not fit for vlsi industry , musically kiddos ... thx for ur valuable comment

[@saravanakumara8080]

Which field are u working? If u are IT u can not get this concept. The way he explains superb

[@bipulpal7719]

thank you sir