How to calculate width of metal that is between a pad and a block

[Jushoraj]

Assume a pad and a block is placed 1mm apart from each other. If they are connected together by metal M1 carrying a current of 100mA, What will be the width of M1.
I need the total solution. Can any one help me to solve this out?

 

[findsriharsha]

Re: Analog layout: Solve

You can use the EM check tool in cadence and find out what should be the width required to carry 100mA through M1 of length L..

 

[erikl]

Re: Analog layout: Solve

I need the total solution. Can any one help me to solve this out?

W = L*R_A * I / V_drop

W = width [µm]
L = length [µm]
R_A = area-resistance [Ω/◻]
I = current [mA]
V_drop = acceptable voltage drop [mV]

Your(?) example: L=1000µm ; R_A(M1) ≈ 0.1[Ω/◻] ; I=100mA ; V_drop = 100mV

W = ... = 1000 * 0.1 = 100µm

 

[Jushoraj]

Re: Analog layout: Solve

W = L*R_A * I / V_drop

W = width [µm]
L = length [µm]
R_A = area-resistance [Ω/◻]
I = current [mA]
V_drop = acceptable voltage drop [mV]

Your(?) example: L=1000µm ; R_A(M1) ≈ 0.1[Ω/◻] ; I=100mA ; V_drop = 100mV

W = ... = 1000 * 0.1 = 100µm

Really thank you for your reply......