Copper interconnections are introduced into state-of-the-art ICs because of its lower resistivity of r = 1.66µW.cm. If this interconnection line runs diagonally from one corner to the other corner of a 20mm X 20mm silicon integrated die, what is the resistance of the line of 1µm thick and 10µm wide?

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Copper interconnections are introduced into state-of-the-art ICs
because of its lower resistivity of r = 1.66µW.cm. If this
interconnection line runs diagonally from one corner to the other
corner of a 20mm X 20mm silicon integrated die, what is the
resistance of the line of 1µm thick and 10µm wide?

Expert Solution
Step 1

Given;

Resistivity (r)= 1.66µW.cm.

Thickness = 1µm

Width = 10µm

die side Length =  20mm

Computer Engineering homework question answer, step 1, image 1

ab= l x^bc= l y^cd= l z^ad= ab+bc+cd = l x^+l y^+l z^ad = l2+l2+l2ad = 3 l    [l is longest eachside]

 

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