Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
conduction band is much far from the nucleus and hence the force of attraction and are much more free to move providing lesser resistance to flow of current....
The resistivity decreases and the width increases as we go to higher metals and this results in the decrease of the resistance. To support my statement, herez the formula:
R=Rs(L/W)
R --- Resistance
Rs --- Resistivity
L --- Length of the Resistor
W --- Width of the Resistor
If you take into account the parasitic resistance then too the spacing between these metals is high so resistance is low.
The resistivity decreases and the width increases as we go to higher metals and this results in the decrease of the resistance. To support my statement, herez the formula:
R=Rs(L/W)
R --- Resistance
Rs --- Resistivity
L --- Length of the Resistor
W --- Width of the Resistor
If you take into account the parasitic resistance then too the spacing between these metals is high so resistance is low.
how are bringing in width factor here... higher metals can be made into widths of wires made of lower metal.... please explain....
what parasitic resistance are you talking about... can u explain that pls???
W = Width of Metal
L= Length of Metal
Rs= Resistivity of the Metal
R= Resitance of Metal.
If you consider layout or PNR point of view length & width of metal plays an important role for calculating the resistance of metals or estimating the timing of a particular path(for PNR issues). Same way for parasitic calculations too.
The explanation is simple - usually M1 is the thinnest, M2-Mtop-1 are thicker and top metal is the thickest. Also top metal si often a bit different alloy then the other metals (sometimes copper...)
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
