Why Lower metal having high Resistance & higher metal having low Resistance - English Version
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- Опубликовано: 13 окт 2024
- This video contain Why Lower metal having high Resistance & higher metal having low Resistance in English, for basic Electronics & VLSI engineers.as per my knowledge i shared the details in English.
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Sir..for suppose main all metal having same thickness.what will the problem we can faced in fabrication and tell me what is difference between thickness and width..??
If the metal want to carry high current , for that thickness also need , if all have same thickness how this can happen ? So fab unit following this method
Why do we need to maintain different thickness ?
We can't maintain thickness - foundry will take care of this
@@analoglayout no sir but my question was " Why is thickness increases from metal1 to metal 10 ?" what is the reason for variation in thickness in particular fashion (like increasing from metal 1 to metal 10) ?
Why can't we make it reverse ? Like thickness of metal 1 is larger than metal 10 (lower metal having higher thickness and higher metal having lower thickness ) ?
@@Artbyshrinidhi i don't know the exact reason why foundry are following this style, but as per my understanding to reduce resistance they are increasing the thickness
@@analoglayout ok sir
Why the lower metals are not fabricated using CU do it has any specific reason for using different alloys?
cu is costlier compare to aluminium , and lower metal is only used to connect gate & source & drain connection , so it will never handle critical voltage & high current , so aluminum ins enough to handle this
Thank you!
@@analoglayout all that high current must pass through S&D.. Which are connected with lower metals.. And one more thing in lower technologies all the metals are fabricated through cu itself.. I appreciate ur work.. 👍👍
Unnecessarly you strech the video . anyway this will helpful for many vlsi aspirant. 👍
Thursday interview sir
good bro.
If M1, M2 , M3 and M4 are all fabricated using Aluminium, then all of them should be having the same resistivity. But you said the resistivity will be different. How?
Al the metal is are not having same thickness , and RS
@@analoglayout If thickness is different, the resistance will be different, but the resistivity will be the same.
@@mrworld454yes the resistivity will be same because for particular metal we have particular resistivity but on changing the size of metal it's value of resistivity change roh=RA/L
@@mrworld454 resistivity = Rsh/thickness..
@@user-wl1fz4rk4h Yes, I know. But M1-M4, all these 4 metals should have the same thickness, right?
I know sir but tell me in transistor
Difference between thick and thin
thin is small , thick is very high compare to thin
Actually thing is we have different types metals like m1 to m9 all these metals r different frm each other based on thickness .... Suppose if u take m1 it's thikness less compare to m2,m3, n m4 thickness is bit more than previous metals ....This is hw lower metal has high resistance than higher metals based on thickness.....In this video he proposed formula is 100 percent correct .Thank you suresh u r doing good job.
@@praveennani3557 thx preveen , for positive response ... detailed explanation u've mentioned above
Tq sir
Only tell me few questions
send me a mail , i'l send u the question
Pettara sir
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